User Manual AWG2021 Arbitrary Waveform Generator 070-9097-50 www.tektronix.
Copyright Tektronix Japan, Ltd. All rights reserved. Copyright Tektronix, Inc. All rights reserved. Tektronix products are covered by U.S. and foreign patents, issued and pending. Information in this publication supercedes that in all previously published material. Specifications and price change privileges reserved. Tektronix Japan, Ltd., 5–9–31 Kitashinagawa, Shinagawa–ku, Tokyo 141–0001 Japan Tektronix, Inc., P.O.
Tektronix warrants that this product will be free from defects in materials and workmanship for a period of one (1) year from the date of shipment. If any such product proves defective during this warranty period, Tektronix, at its option, either will repair the defective product without charge for parts and labor, or will provide a replacement in exchange for the defective product.
Table of Contents General Safety Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxi xxiii Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 Product Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Initial Inspection . . . . . . . . . . . . . . .
Table of Contents Example 4: Loading and Saving Files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Saving Files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Loading Files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Auto Load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Example 5: Loading Waveforms From Other Instruments . .
Table of Contents AWG2021 User Manual Editing Waveform Data in Table Display . . . . . . . . . . . . . . . . . . . . . . . . . . . Cut, Copy, and Paste Processing Function . . . . . . . . . . . . . . . . . . . . . . . . . . Equation Editor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Entering the Equation Editor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Saving Files and Exiting the Editor . . . . . . . . . . . . . . . . .
Table of Contents Selecting the Display Format for the SETUP Menu . . . . . . . . . . . . . . . . . . . . . . Selecting Output Parameter Fields . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Numeric Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Selecting a Waveform or Sequence File . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Setting Clock Source and Frequency . . . . . . . . . . . . . . . . . . . . . . .
Table of Contents Other Settings and Displays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Setting the Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Settings for Hard Copy Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Status Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Diagnostics and Calibrations . . . . . . . . . . . . . . . . . .
Table of Contents Performance Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Prerequisites . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Related Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Equipment Required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Operating Mode Checks . . . . . . . . . . . . . . .
Table of Contents AWG2021 User Manual Pattern Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Logical Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . FFT (Fast Fourier Transforms) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Repackaging for Shipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Factory Settings . . .
Table of Contents List of Figures viii Figure 1-1: Rear Panel Controls Used In Start Up . . . . . . . . . . . . . . . Figure 1-2: ON/STBY Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5 1-7 Figure 2-1: Front Panel Overall View . . . . . . . . . . . . . . . . . . . . . . . . . . Figure 2-2: Front Panel Button Detail . . . . . . . . . . . . . . . . . . . . . . . . . . Figure 2-3: Side Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table of Contents Figure 2-32: Setting the Edit Range . . . . . . . . . . . . . . . . . . . . . . . . . . . Figure 2-33: Drawing a Waveform Using the Point Draw Function . Figure 2-34: Connecting the Points . . . . . . . . . . . . . . . . . . . . . . . . . . . . Figure 2-35: Creating a Sine Wave . . . . . . . . . . . . . . . . . . . . . . . . . . . . Figure 2-36: Sine Wave With Noise Added . . . . . . . . . . . . . . . . . . . . . . Figure 2-37: Equation Editor Menu Display . . . . . . . . . . . . . . . .
Table of Contents Figure 3-1: Initial EDIT Menu Structure . . . . . . . . . . . . . . . . . . . . . . . Figure 3-2: Display of the Initial Menu . . . . . . . . . . . . . . . . . . . . . . . . . Figure 3-3: Menu Displayed When Rename is Selected . . . . . . . . . . . Figure 3-4: Menu Displayed When Delete is Selected . . . . . . . . . . . . . Figure 3-5: Menu Displayed When Lock is Selected . . . . . . . . . . . . . . Figure 3-6: Menu Display When Expand SEQ into WFM is Selected . . . . . . . . . . . . . .
Table of Contents Figure 3-38: List of Files for Insertion . . . . . . . . . . . . . . . . . . . . . . . . . Figure 3-39: File Waveform Display . . . . . . . . . . . . . . . . . . . . . . . . . . . Figure 3-40: Inserting Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Figure 3-41: Waveform Example before Calculation . . . . . . . . . . . . . Figure 3-42: Absolute Calculation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Figure 3-43: Square Calculation . . . . . . . . . . . .
Table of Contents Figure 3-74: Vertical Zoom . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Figure 3-75: Timing Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Figure 3-76: Waveform Editor Timing Display Menu Structure . . . . Figure 3-77: Timing Display Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . Figure 3-78: Count Up Pattern Display . . . . . . . . . . . . . . . . . . . . . . . . Figure 3-79: Gray Code Pattern Display . . . . . . . . . .
Table of Contents Figure 3-110: Equation Using norm( . . . . . . . . . . . . . . . . . . . . . . . . . . . Figure 3-111: Equation Using max( and min( . . . . . . . . . . . . . . . . . . . . Figure 3-112: Equation Using rnd( . . . . . . . . . . . . . . . . . . . . . . . . . . . . Figure 3-113: Waveform Before Calculation . . . . . . . . . . . . . . . . . . . . Figure 3-114: Waveform After Differentiation Using diff( . . . . . . . . . Figure 3-115: Waveform After Integration Using integ( . . . . . . . . . .
Table of Contents Figure 3-146: Magnified Signal Display . . . . . . . . . . . . . . . . . . . . . . . . Figure 3-147: Low Pass Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Figure 3-148: High Pass Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Figure 3-149: Band Pass Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Figure 3-150: Band Cut Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table of Contents AWG2021 User Manual Figure 3-178: Format... Sub-Menu Display . . . . . . . . . . . . . . . . . . . . . Figure 3-179: Write Protect Tab on a Floppy Disk . . . . . . . . . . . . . . . Figure 3-180: File and Directory Display in the Root Directory . . . . . Figure 3-181: Directory Name Input . . . . . . . . . . . . . . . . . . . . . . . . . . . Figure 3-182: Directory Displayed When Change Directory is Selected . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table of Contents Figure A-11: The Shape of the Output Connector . . . . . . . . . . . . . . . . Figure A-12: Generation of Excess Output . . . . . . . . . . . . . . . . . . . . . . Figure A-13: Output Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Figure A-14: Output Waveform . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Figure A-15: Data Latching . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Figure A-16: Digital Data Out Cable . . . . . .
Table of Contents AWG2021 User Manual Figure D-6: Nyquist Pulse Formula and Waveform . . . . . . . . . . . . . . Figure D-7: Linear Frequency Sweep Formula and Waveform . . . . . Figure D-8: Log Frequency Sweep Formula and Waveform . . . . . . . Figure D-9: Amplitude Modulation Formula and Waveform . . . . . . . Figure D-10: Frequency Modulation Formula and Waveform . . . . . . Figure D-11: Damped Sine Wave Formula and Waveform . . . . . . . . . Figure D-12: Pulse Width Modulation Waveform . . . . . . . .
Table of Contents Figure E-14: Representative Filter Characteristics . . . . . . . . . . . . . . . Figure E-15: Time Difference Between Signals and SYNC Signals . . Figure E-16: Attenuator Configuration . . . . . . . . . . . . . . . . . . . . . . . . Figure E-17: Offset Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-16 E-17 E-18 E-18 Figure F-1: Linear Interpolation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Figure F-2: Point Padding . . . . . . .
Table of Contents List of Tables Table 1-1: Power Cord Identification . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6 Table 2-1: Numeric Value Input Example 1 . . . . . . . . . . . . . . . . . . . . . Table 2-2: Numeric Value Input Example 2 . . . . . . . . . . . . . . . . . . . . . 2-18 2-19 Table 3-1: Menu Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5 Table 3-2: Menu Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table of Contents Table B-1: Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . Table B-2: Mechanical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . Table B-3: Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . Table B-4: Environmental Characteristics . . . . . . . . . . . . . . . . . . . . . . Table B-5: Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . Table B-6: Certifications and Compliances . .
General Safety Summary Review the following safety precautions to avoid injury and prevent damage to this product or any products connected to it. Only qualified personnel should perform service procedures. Injury Precautions Use Proper Power Cord To avoid fire hazard, use only the power cord specified for this product. Avoid Electric Overload To avoid electric shock or fire hazard, do not apply a voltage to a terminal that is outside the range specified for that terminal.
General Safety Summary Do Not Operate With Suspected Failures If you suspect there is damage to this product, have it inspected by qualified service personnel. Safety Terms and Symbols Terms in This Manual These terms may appear in this manual: Warning statements identify conditions or practices that could result in injury or loss of life. Caution statements identify conditions or practices that could result in damage to this product or other property.
Preface This is the User Manual for the AWG2021 250 MHz Arbitrary Waveform Generator. Getting Started covers the features of the AWG2021, initial inspection, and start up. In particular, the start up section covers the procedures required prior to turning on the unit and points that require special care or caution. Operating Basics first describes the components of the AWG2021 and their functions.
Preface When menu items are displayed in the manual, the menu type, either bottom menu, side menu, or sub-menu, is distinguished and indicated as shown below. Consecutive button operations are expressed as shown below. Setting (bottom) View type... (side) Timing (sub) This expression describes the following button operations. 1) Selecting the “Setting” item from the bottom menu 2) Selecting the “View type...” item from the side menu.
Overview This section describes the features of the AWG2021, initial inspection, and start up. Product Description The AWG2021 is a portable arbitrary waveform generator capable of generating both arbitrary and standard function waveforms.
Overview An FFT editor and a convolution waveform editor are provided with AWG2021 units that include Option 09. These editors support frequency domain editing and waveform convolution calculations. As a function generator, the AWG2021 can generate sine waves, triangle waves, square waves, ramp waves, and pulse waves. It can set the frequency, amplitude, offset, polarity, and other factors for each of these waveforms independently, for each channel. The AWG2021 has a 3.
Start Up This section describes the procedures required prior to turning on the AWG2021. Installation Before you begin, refer to the Safety Summary at the front of this manual for power source, grounding, and other safety information. Before you use the instrument, ensure that it is properly installed and powered on. To properly install and power on the instrument, perform the following steps: 1. Check that the operating environment is correct.
Start Up 3. Remove the fuse from the fuse holder on the rear panel and check the fuse. To remove the fuse, turn it counter-clock-wise with a screwdriver while pushing it in. There are two types of fuses provided. Here is the fuse type and rating. Fuse Fuse Part Number Fuse Cap Part Number 0.25 inch × 1.25 inch (UL 198G,3AG): 6A FAST, 250 V 159Ć0239ĆXX 200Ć2264ĆXX 5 mm × 20 mm (IEC 127):5A (T), 250 V 159Ć0210ĆXX 200Ć2265ĆXX 4. Check that you have the proper electrical connections.
Start Up Power On 6. Push the PRINCIPAL POWER SWITCH (shown in Figure 1 -1) on the rear panel of this instrument. Power is now applied to the standby circuit of this instrument.
Start Up Table 1Ć1: Power Cord Identification Plug Configuration Normal Usage Option Number North America 125 V Standard Europe 230 V A1 United Kingdom 230 V A2 Australia 230 V A3 North America 230 V A4 Switzerland 230 V A5 North American 115V/15A Plug NEMA 5Ć20P 1A North American 120/208V 3ĆPhase Plug NEMA L21Ć30P 1B 7. Press the ON/STBY switch (shown in Figure 1 -2) on the lower left side of the front panel to switch on the power for this instrument.
Start Up Once this instrument is installed, leave the PRINCIPAL POWER SWITCH on and use the ON/STBY switch as the power switch. . This instrument needs to be warmed up for at least 20 minutes in order to operate at its optimum precision. Figure 1 Ć2: ON/STBY Switch StartĆup Diagnostics 8. Check the results of the start-up diagnostics. When the power is applied to this instrument, the start-up diagnostics are automatically run.
Start Up displayed, you should execute the calibrations in the UTILITY menu. Still, when the error message is displayed, contact our nearest representative. To exit the diagnostics system, press any of the buttons. The system moves on to the SETUP menu. . In order to preserve the precision of the instrument, after the completion of the warm-up or after temperature changes, calibrate the instrument.
Introduction This section will discuss the following: Overview. The names of the parts of the instrument and their functions. Basic Menu Operation. Operations commonly performed on the instrument and how to enter numbers Operating Examples. Simple examples showing how to output waveforms. These examples are designed to help you gain a basic understanding of the instrument.
Introduction AWG2021 User Manual
Overview The instrument can be divided into three main areas: the front panel, the side panel and the rear panel. In this section, we will list the names and functions of the parts in each of these areas. We will also list typical display messages that appear on the screen and what they mean. Front Panel 1 2 AWG2021 ARBITRARY WAVEFORM GENERATOR MENU SETUP CURSOR HARDCOPY VALUE MODE TRIGGER MANUAL EDIT LOAD/SAVE UTILITY F.
Overview (1) Bottom Buttons Use the seven bottom buttons to display corresponding menus. Pressing any button in the MENU column, or the F.G button, displays its corresponding menu. These menus are generally the highest level menus. (2) Side Buttons Use the five side buttons to select the side menus displayed on the right side of the screen. Selecting any item from bottom menu displays a side menu. The side menu is generally a lower level menu.
Overview 9 11 10 12 13 14 15 MENU SETUP CURSOR VALUE HARDCOPY MODE TRIGGER MANUAL EDIT 7 8 ns 9 F INPUT LOAD/SAVE UTILITY F.G 4 5 6 1 2 3 0 . 20 A MHz/ms E kHz/ms/mV D B 19 Hz/s/V 1MW ± 10VpĆp 50W ± 5VRMS ENTER C 18 17 16 Figure 2 Ć2: Front Panel Button Detail AWG2021 User Manual (9) Menu Buttons and Indicators The MENU column comprises the SETUP, MODE, EDIT, LOAD/SAVE and UTILITY buttons.
Overview MODE Menu Use the MODE menu to set the operation mode. There are two main types of operation modes: the trigger modes (Cont, Triggered, Gated and Burst) and the modes in which waveforms are output in sequence for each trigger (Waveform Advance and Autostep). This menu also has an item for setting the timing with which synchronization signals are generated. See Section 3 for more information.
Overview AWG2021 User Manual (12) VALUE Button and Indicator Press the VALUE button to light the LED indicator. In this state, inputting the numeric values or selecting the item can be done using the numeric keys or the general purpose knob. After input or selection, press the VALUE button to enter the setting. When a special VALUE button movement is required, an explanation of the VALUE button is displayed on the screen.
Overview Side Panel 21 ! Figure 2 Ć3: Side Panel (21) Floppy Disk Drive # " ! " ! # " # ! LOAD/SAVE ! " " # # ! Never press the eject button to eject the floppy disk while the disk drive indicator light is lit, as the stored data may be corrupted and errors may result
Overview Rear Panel ! " % 22 WARNING ATTENTION ! TO AVOID ELECTRIC SHOCK, THE POWER CORD PROTECTIVE GROUNDING CONDUCTOR MUST BE CONNECTED TO GROUND. RS-232-C FOR CONTINUED FIRE PROTECTION REPLACE FUSE ONLY WITH 250V FUSE OF THE SPECIFIED TYPE AND RATING. IEEE STD 488 PORT CLOCK OUT NO OPERATOR SERVICEABLE COMPONENTS INSIDE.DO NOT REMOVE COVERS. REFER SERVICING TO QUALIFIED PERSONNEL.
Overview 2 Ć10 (25) CH1 AM IN Connector ! " ! ! %! " ! $ # ! ! "! W ! % " # ! ! %! ! ! ! ± ! ± "! " ! (26) CH2 SYNC OUT Connector (Option 02) CH2 SYNC OUT ! # & "! "! # ! $ ! W ! ! (27) CH2 MARKER 1 OUT Connector (Option 02) CH2 MARKER 1 OUT ! # "
Overview 28 34 29 RS-232-C 30 CH2 DIGITAL DATA OUT CH1 DIGITAL DATA OUT TTL LEVEL FROM 50W IEEE STD 488 PORT IEEE STD 488 PORT 31 CLOCK OUT MARKER 2 OUT CLOCK OUT CH-1 MARKER 2 OUT CH-1 2V FROM 50W 5V FROM 50W 2V FROM 50W 32 MARKER 2 OUT 5V FROM 50W MARKER 2 OUT CH-2 CH-2 5V FROM 50W 5V FROM 50W 33 CLOCK IN CLOCK IN 50W ±2V MAX 50W ±2V MAX " 35 CH1 DIGITAL DATA OUT ECL LEVEL 50W INTO -2V IEEE STD 488 PORT CLOCK OUT MARKER 2 OUT CH-1 2V FR
Overview 2 Ć12 (30) CLOCK OUT Connector This connector is used for internal clock output. The output level is 1 V with a 50 W termination. (31) CH1 MARKER 2 OUT Connector The CH1 MARKER 2 OUT connector provides a userĆspecified CH1 marker 2. The output level is 2.5 V with a 50 W termination. (32) CH2 MARKER 2 OUT Connector (Option 02) The CH2 MARKER 2 OUT connector provides a userĆspecified CH2 marker 2. The output level is 2.5 V with a 50 W termination.
Overview CRT Display 1 8 2 3 4 7 6 5 Figure 2 Ć6: CRT Display AWG2021 User Manual 2 Ć13
Overview 2 Ć14 (1) Status Area The status line always displays the status of the instrument, no matter what menu is displayed on the screen. Five items are shown on the status line: the interface status (see the AWG2000 Series Programmer Manual); the operation mode and the trigger status (see page 3 Ć233); and the clock icon (which indicates that the instrument is busy and cannot accept input from any other sources)(ăą). (2) Date and Time Area The date and time are displayed here.
Basic Menu Operation Menu Operations Operations (settings, procedures and selection of parameters for waveform output) are performed on this instrument by means of the system’s menus. When one of the menu buttons in the center of the front panel is pressed, the menu corresponding to that button will appear. There are six menu buttons: the five buttons used in arbitrary waveform generation mode (SETUP, MODE, EDIT, LOAD/SAVE and UTILITY) and below them the button used in function waveform generation mode (F.
Basic Menu Operation When you select the desired menu item, the numeric input columns and the selections controlled by that menu are displayed. To change the selections and numeric values, use the numeric keys or general purpose knob. When you select a menu item, one of the following occurs. The lower-level menu is presented. The desired item can be selected and may have these characteristics: each time the bezel button is pressed, the selection changes.
Basic Menu Operation In the following section, we will explain these numeric input methods in more detail. Using the Front Panel Numeric Keys To specify numeric values with the numeric keys, ENTER key, and unit keys on the front panel, perform the following steps. 1. Press the button for the menu item you want to change. 2. Use the numeric keys to input the desired value. 3. Press one of the unit keys or the ENTER key. Figure 2 -8 shows the menu displayed when Amplitude is selected from the SETUP menu.
Basic Menu Operation 7 8 9 ns 4 5 6 MHz/ms 1 2 3 kHz/ms/mV 0 . B A Hz/s/V Numeric Keys F E Delete Key D C Unit Keys ENTER ENTER Key Figure 2 Ć9: Numeric Keys, Unit Keys, Delete Key, and ENTER Key Numeric Input Examples. Example 1: Clock frequency numeric input (Clock in SETUP menu) The value before input mode was 100.0 Hz and is to be changed to 12.3 Hz. Pressing the “1”, “2”, “.
Basic Menu Operation To change the unit to MHz, press “1”, “2”, “.”, “3”, and MHz/ s keys in order. This changes the value to 12.30 MHz. The frequency is expressed by a four-digit number. When a value has been entered, pressing one of the unit keys will change the unit to that value and will confirm the number that has been entered. If you press the unit key before the instrument has entered numeric input status), only the unit will change; the numeric value that is currently displayed will be unaffected.
Basic Menu Operation CURSOR VALUE Figure 2 Ć10: General Purpose Knob and Arrow Buttons Figure 2 Ć11: Knob Icon and Underscore When a numeric value has been changed using the general purpose knob, there is no need to confirm it by pressing the ENTER key on the front panel. The numeric value is entered automatically without pressing the ENTER key. To change a value using the general purpose knob, perform the following steps. 1.
Basic Menu Operation Numeric Specification Example. Turning the general purpose knob one click to the right increases the value of the underscored digit by 1. Turning it one click to the left decreases the value by 1. For example, if the value is 173.0 and the cursor is under the 7, turning the general purpose knob left or right changes the value as shown below. If the underscored value is already 1, turning the general purpose knob left does not decrease the value any further. 173.0 183.0 193.0 203.0 213.
Basic Menu Operation AWG2021 User Manual
Operating Examples In this section, we will use simple examples to illustrate the basic procedures for waveform output on the AWG2021. Six examples will be given; these are listed below. Buttons and menu items to be used will be shown to the left, and a description of the corresponding operation will appear on the right. First of all, you should make sure the power to the unit has been turned on; see Section 1 “Start Up” for instructions on how to do this.
Operating Examples Necessary Equipment The following equipment is needed to execute Examples 1 – 6: Digital storage oscilloscope (Tektronix TDS series instrument or equivalent) 50 W cables (3) GPIB cable (1) 50 W terminators (2) Sample waveform library disk (included with the instrument as a standard accessory) Signal generator Example 1: Setting the Date & Time and Adjusting the Brightness In Example 1, you will set the date and time on the instrument’s built-in clock and adjust th
Operating Examples Figure 2 Ć12: Menu Display (showing Date/Time item selected) 3. Select Year from the side menu. 4. Turn the general purpose knob to set the year to 1994. 5. In the same manner, select Month, Day, and Hour from the side menu and set the values to February, 1 and 15, respectively. The time is displayed in 24-hour fashion. 6. Select Minute from the side menu. 7. Use the general purpose knob to set the minute value to 30. .
Operating Examples Date/Time Display It is possible to have the date and time constantly displayed on the screen. To do this, use the following procedure: 1. Select Misc from the bottom menu. 2. Select Display... from the side menu. 3. Press Date Time in the sub-menu and select On. The current date and time will be displayed in the upper right-hand corner of the screen, as shown in Figure 2 -13.
Operating Examples Setting the Display Brightness In this operation, you will set the display brightness of the screen. The display offers three different levels of brightness. Use the following procedure to adjust the overall display brightness to the proper level: 1. Select Brightness from the side-menu. Figure 2 Ć14: Setting the Display Brightness 2. Turn the general purpose knob to set the brightness to the proper level.
Operating Examples Example 2: Output of a Waveform Using the Sample Waveform Library Disk In Example 2, you will output a waveform using the sample waveform library disk, a standard accessory included with the instrument. Loading Sample Waveforms The sample waveform should be loaded from the floppy disk to the internal memory of the instrument. 1. Press the LOAD/SAVE button in the MENU column. 2. Select Device from the bottom menu. 3. Select Disk from the side menu. 4. Select Load from the bottom menu.
Operating Examples Figure 2 Ć16: Sample Waveform Library Disk Files 6. Select Load All from the side menu. The display shown in Figure 2 -17 will appear.
Operating Examples Figure 2 Ć17: CRT Screen Display When Load All is Selected All the files in the lower box on the screen are loaded into internal memory. The loaded files are displayed in the internal memory list in the upper box on the screen. Turn the general purpose knob to scroll through the list of files displayed in the lower box on the screen. For explanations of the waveform in each file, see Sample Waveform Library in Appendix D. .
Operating Examples Setting the Output Parameters These parameters are used for waveform output. 1. Press the SETUP button in the MENU column. The SETUP menu is displayed. Figure 2 Ć18: SETUP Menu 2. Select Waveform Sequence from the bottom menu. 3. Turn the general purpose knob to develop the waveform file list. Select the file GAUSS_P.WFM from this list.
Operating Examples Figure 2 Ć19: Waveform File List 4. Select O.K. from the sub-menu. The selected file will be confirmed and the output conditions will be automatically set. Figure 2 -20 shows the SETUP menu with the file GAUSS_P.WFM selected. . The selected file is locked. Therefore, although changes can be made to the waveform clock, filter, amplitude, offset and other output conditions, these changes cannot be saved to the file.
Operating Examples Figure 2 Ć20: GAUSS_P.WFM File Output Parameters 5. Press the MODE button in the MENU column. The MODE menu is displayed. The files selected from the SETUP menu are displayed in the MODE menu.
Operating Examples Figure 2 Ć21: MODE Menu 6. Select Cont from the bottom menu. When Cont is selected, the waveform is continuously output. Waveform Output 1. Connect this instrument and the oscilloscope with a 50 W cable and a 50 W termination as shown in Figure 2 -22. This instrument’s waveform output is calibrated to a 50 W load.
Operating Examples 2. Press the front panel CH1 On/Off button to switch on waveform output. Figure 2 -23 shows the channel On/Off button and indicator. CH 1 CH 2 ! DO NOT APPLY EXT SIGNAL 25Vp–p MAX OPEN CIRCUIT FROM 50 W Figure 2 Ć23: Channel On/Off Buttons and Indicators When the Channel is on, the indicator lights up and the set waveform is output from the CH1 output connector. 3.
Operating Examples Example 3: Creating Files and Arbitrary Waveform Outputs When using the instrument for arbitrary waveform output, you should first use the editors in the EDIT menu to create the waveform to be output. In this operation, you will create an arbitrary waveform with the editors, and then you will set the conditions for waveform output (frequency, amplitude, offset, etc.) in the SETUP menu. Finally, you will set the operation mode in the MODE menu to output the waveform.
Operating Examples Figure 2 Ć24: Initial Menu 2. Select New Waveform from the side menu. Figure 2 -25 shows the waveform editor graphic menu. The default for the number of points in the waveform is 1000.
Operating Examples Figure 2 Ć25: Waveform Editor Graphic Menu 3. Press the front panel CURSOR button to activate the right side vertical bar cursor (it becomes a solid line). Pressing the CURSOR button toggles the selected vertical bar cursor from right to left and back again. You can move the selected cursor using the general purpose knob or the numeric keys. 4. Press the following key sequence: 4, 9, 9, ENTER. This sets the point value for the right side vertical bar cursor to 499 (see Figure 2 -26).
Operating Examples Figure 2 Ć26: Setting the Point Value for the Right Side Vertical Bar Cursor 5. Select Standard Waveform from the bottom menu. 6. Select Type from the side menu. 7. Turn the general purpose knob to select Sine. 8. Select Cycle from the side menu. 9. Press “2” and ENTER in that order to set the number of cycles for the sine wave to 2. 10. Select Execute from the side menu. A two-cycle sine waveform is created between the vertical bar cursors (see Figure 2 -27).
Operating Examples Figure 2 Ć27: Creating a Sine Waveform 11. Press the CURSOR button to activate the right side vertical bar cursor. 12. Press the following key sequence: 9, 9, 9, ENTER. This sets the point value to 999. 13. Press the CURSOR button to activate the left side vertical bar cursor. 14. Press the following key sequence: 5, 0, 0, ENTER. This sets the point value to 500. 15. Select Type from the side menu. 16. Turn the general purpose knob to select Ramp. 17. Select Amplitude from the side menu.
Operating Examples Figure 2 Ć28: Creating a Ramp Waveform This completes the waveform creation. Next, name the waveform file and exit the waveform editor. 22. Select Close/Write from the bottom menu. 23. Select Write and Close from the side menu. The display used to enter the file name will appear. 24. Input SAMPLE–1 as the file name. Use the general purpose knob to select S from the character menu. Then press the VALUE button. S is inserted into the file name input column.
Operating Examples Figure 2 Ć29: Naming a File 25. When you finish inputting the file name, select O.K. from the sub menu. The system returns to the initial menu and displays the waveform file created (see Figure 2 -30). The extender “WFM” will be displayed after the file name; this indicates that the file is a waveform file.
Operating Examples Figure 2 Ć30: Initial Menu File List AWG2021 User Manual 2 Ć43
Operating Examples Creating Arbitrary Waveforms Using the Point Draw Function Arbitrary waveforms can be created on the graphic display with the POINT DRAW function. Use the following procedure to make a copy of the file SAMPLE–1.WFM created in the previous operation. 1. In the initial EDIT menu, select Copy bottom menu. The display used to enter the name of the copy of the file will appear, as shown in Figure 2 -31.
Operating Examples 6. Select Edit from the side menu. The SAMPLE–2 waveform file will appear on the screen. You will now set the range for waveform creation. The arbitrary waveform will be created within this range using the Point Draw function. 7. Press the CURSOR button on the front panel. This will activate the vertical cursor bar in the left-hand side of the screen. 8. Press “2”, “5”, “0”, and ENTER to set the point value of the left cursor to 250. 9.
Operating Examples 12. Select Draw... from the side menu. The first point will be drawn. 13. Press the VALUE button on the front panel to determine the direction in which the point cursor will move. 14. Using the general purpose knob, move the point cursor to draw another point. 15. Select Add Draw Point from the sub-menu. The point will be confirmed and an × will appear at that position. 16. Repeat steps 13 through 15 to determine other points. An example is shown in Figure 2 -33.
Operating Examples If smoothing is turned off, linear interpolation will be performed and the points that have been drawn and the curve outside the area marked by the vertical cursors will be connected using straight lines. 18. Select Execute from the sub-menu. The points between the vertical cursors will be connected in a smooth curve (using spline interpolation), as shown in Figure 2 -34. Figure 2 Ć34: Connecting the Points 19. Select Close/Write from the bottom menu. 20.
Operating Examples Creating Waveforms Arithmetically You will now add a noise waveform to the sine waveform. 1. Select New Waveform from the side menu in the initial EDIT menu. 2. Select Standard Waveform from the bottom menu. 3. Select Amplitude from the side menu. 4. Press “1” and ENTER in that order. 5. Check to make sure that the parameters for other items in the side menu are set to the values shown below. If they are different, change them to the values shown below. Type Cycle Offset Sine 1.0 0.
Operating Examples 8. Using the general purpose knob, select Add Noise. 9. Select Amplitude from the side menu. 10. Press “.”, “3”, and ENTER in that order. 11. Select Execute from the side menu. Noise will be added to the sine wave, as shown in Figure 2 -36. Figure 2 Ć36: Sine Wave With Noise Added 12. Select Close/Write from the bottom menu. 13. Select Write and Close from the side menu. 14. Make SAMPLE–3 the file name.
Operating Examples Creating an Equation File This procedure is used to create a waveform using an equation. 1. Select New Equation from the side menu. Figure 2 -37 shows the equation editor menu. Figure 2 Ć37: Equation Editor Menu Display To initially define an equation, you must specify its region in time. Do this by selecting “range(” in the component menu. When a new equation file is created, “range(0,” will automatically appear in the first line of the equation.
Operating Examples . You can use the general purpose knob to select an item from within the component menu. After selecting an item, press the front panel VALUE button or ENTER button to enter the selected item into the equation list. Now you will create the equation for the time region set in the previous step. 4. For the equation, enter 0.5*sin(4*pi*x). Input 0, “.”, 5, *, sin(, 4, *, pi, *, x, ) with the numeric keys or from the component menu. 5.
Operating Examples Figure 2 Ć39: Display of Compiled Waveform Data 7. Select Continue Operation from the side menu to return the system to the previous equation edit menu. 8. Select Exit/Write from the bottom menu. 9. Select Write and Exit from the side menu. 10. Make SAMPLE–4 the file name. For details on how to input the file name, see Step 24 from the waveform file creation procedure. 11. When you are finished inputting the file name, select O.K. from the sub-menu. The equation file (SAMPLE–4.
Operating Examples Figure 2 Ć40: Initial Menu File List AWG2021 User Manual 2 Ć53
Operating Examples Creating a Sequence File In this procedure, you will create a sequence file that combines two files: the waveform file created with the waveform editor (SAMPLE–1.WFM) and the waveform file created with the equation editor and then compiled (SAMPLE–4.WFM). 1. Select New Sequence from the side menu. Figure 2 -41 shows the sequence editor menu. Figure 2 Ć41: Sequence Editor Menu Display 2.
Operating Examples 5. Repeat Steps 2 through 4 to enter SAMPLE–4.WFM in the second line of the Destination list. The repetition count for this file should be set to 1; since this is the default value, there is no need to change it. This completes the creation of the waveform sequence file. Figure 2 -42 shows the resultant display. Figure 2 Ć42: Sequence Example 6. Select Show Overview from the bottom menu to verify the sequence waveform. The sequence waveform is combined as the sequence: SAMPLE–1.
Operating Examples Figure 2 Ć43: Sequence Waveform Display With Show Overview Selected 7. After verifying waveform, select Continue Operation from the side menu to return the system to the previous sequence edit menu. 8. Select Exit/Write from the bottom menu. 9. Select Write and Exit from the side menu. 10. Input SAMPLE–5 as the name for this sequence file. For details on how to input the file name, see Step 24 of the procedure for waveform file creation. 11.
Operating Examples Creating Autostep Files In this operation, you will program waveforms to be output, using the files you have created in the previous operations to form an autostep file. 1. Select New Autostep on the second page of the side menu in the initial EDIT menu. . Select More from the side menu to display the next page. You will set the CH1 file for Step 1. 2. Using the general purpose knob, move the cursor to the CH1 file column. Figure 2 Ć44: Moving the Cursor 3.
Operating Examples Figure 2 Ć45: File List 4. Using the general purpose knob, select the SAMPLE–1.WFM file. 5. Select Set from the side menu. The waveform and output parameters for the SAMPLE–1.WFM file will appear. Figure 2 Ć46: Setting File You will now set the CH1 file for Step 2. 6. Select More 1 of 2 from the side menu. 7. Select Append New Step from the side menu.
Operating Examples The Step 2 display will appear. 8. Using the procedure described in Steps 2 – 5 above, set the CH1 file for Step 2 (SAMPLE–3). Figure 2 Ć47: Setting the File for Step 2 9. Using the procedure described in Steps 2 – 8 above, set the CH1 file for Step 3 (SAMPLE–4). Figure 2 Ć48: Setting the File for Step 3 10. Select Exit/Write from the bottom menu. 11. Select Write and Exit from the side menu.
Operating Examples 12. Enter SAMPLE–6 as the name for the autostep file. See Step 24 of the waveform file creation procedure for instructions on how to enter the file name. 13. When the file name has been entered, select O.K. from the sub-menu. The autostep file that you have created will be saved in the internal memory under the name SAMPLE–6.AST and the initial menu will reappear. Setting the Output Parameters 1. Press the SETUP button in the MENU column. Figure 2 -49 shows the SETUP menu displayed.
Operating Examples 7. Use the numeric and unit keys to input 1, MHz, in order, to set the clock frequency. 8. Press the Source button in the side menu to select Internal. 9. Select Amplitude from the bottom menu. 10. Select CH1 from the side menu. 11. Use the numeric and unit keys to input 5, V, in order, to set the voltage value for full vertical scale. Figure 2 -50 shows the menu displayed as a result of these settings. Figure 2 Ć50: Setting Output Parameters This completes the output parameter setting.
Operating Examples Setting Operation Mode and Waveform Output Now use an oscilloscope to see what type of waveform is generated. Connect the AWG2021 to a oscilloscope using a 50 W cable and a 50 W termination as shown in Figure 2 -51. The waveform output for this instrument is calibrated for a 50 W load. W W Figure 2 Ć51: Connections for Example 3 Continuous Mode. Set the operation mode to Cont. 1.
Operating Examples Figure 2 Ć52: MODE Menu 2. Select Cont from the bottom menu. This operation mode continuously outputs the set waveform. Also, “Running” is displayed in the trigger status area on the upper right section of the screen to show that the set waveform is being output. 3. Press the front panel CH1 On/Off button to enable waveform output. When the output is on, the On/Off indicator lights up. This operation outputs the specified waveform from the CH1 output connector.
Operating Examples Figure 2 Ć53: Setting the Marker Default Triggered Mode. In the following steps, set the operation mode to Triggered and generate the trigger signal with the TRIGGER MANUAL button to control the waveform output. 4. Select Triggered from the bottom menu. When you select this item, the side menu lists external trigger parameters which allow you to set them. Figure 2 -54 shows the menu set for Triggered mode.
Operating Examples Figure 2 Ć54: Menu Displayed When Triggered is Selected Figure 2 -55 shows the MANUAL button and the TRIGGER INPUT connector for inputting an external trigger signal. TRIGGER MANUAL INPUT 1MW 10Vp-p 50W 5VRMS Figure 2 Ć55: MANUAL Button and TRIGGER INPUT Connector This procedure does not use an external trigger signal. Rather, it generates the trigger signal when the MANUAL button is pressed.
Operating Examples 5. Press the MANUAL button. Check the oscilloscope to see that each time you press the MANUAL button, a set waveform is output once. Autostep Mode. Using the following procedure, you can set the operation mode to Autostep and use the MANUAL button to generate a trigger signal and control step waveform output. . When the operation mode is set to Autostep, it is not possible to change the output parameters in the SETUP menu. 6. Select Autostep from the bottom menu.
Operating Examples Figure 2 Ć57: Autostep File List 8. Using the general purpose knob, select the SAMPLE–6.AST file. In this example, there is only one file in the list, so it will already be selected. 9. Select O.K. from the sub-menu. 10. Press the CH1 On/Off button on the front panel to turn on waveform output. 11. Press the MANUAL button on the front panel. Check on the oscilloscope to make sure CH1 waveform output advances one step each time the button is pressed.
Operating Examples Example 4: Loading and Saving Files . When the instrument is switched off, the data in the internal memory is erased. Accordingly, it is necessary to copy any files that have been created or edited onto a floppy disk or into the instrument’s internal non-volatile memory (NVRam). In Example 4, you will load and save the file created in the previous operation. LOAD menu. Used to enter files from a floppy disk or the instrument’s internal NVRam. SAVE menu.
Operating Examples Figure 2 Ć58: SAVE Menu 5. Select Save All from the side menu. When Save All is selected, all the files in internal memory (listed in the upper screen) are saved to the NVRam. See Figure 2 -59.
Operating Examples Figure 2 Ć59: Files Saved in NVRam When Save is selected from the side menu, only the file displayed inverted in the internal memory list is saved to NVRam. 6. Check to make sure that Auto Load in the bottom menu is Off. If it is not Off, select Auto Load from the bottom menu, then select Off from the side menu. 7. Power the instrument off, then on again.
Operating Examples Loading Files The following procedure loads files into internal memory. 1. Press the LOAD/SAVE button in the MENU column. Make sure that there are no files in the internal memory file list in the upper screen (see Figure 2 -60). Figure 2 Ć60: Internal Memory File List 2. Select Load from the bottom menu. Here NVRam is selected in the Device bottom menu. 3. Select Load All from the side menu.
Operating Examples Figure 2 Ć61: Files Loaded into Internal Memory When you select Load from the side menu, the file displayed in inverted video in the NVRam list is loaded into internal memory.
Operating Examples Auto Load Using the Auto Load process, it is possible to automatically load files from a designated device into the instrument’s internal memory when the power to the instrument is turned on. You can do this with the following procedure: 1. Select Auto Load from the bottom menu. 2. Select from NVRam from the side menu. 3. Power the instrument off, then on again.
Operating Examples Example 5: Loading Waveforms From Other Instruments The AWG2021 can transfer waveforms via a GPIB cable from a digital storage oscilloscope (DSO). In Example 5, you will transfer waveforms from a Tektronix TDS series digital storage oscilloscope. 1. Connect the AWG2021 and the other instruments as shown in Figure 2 -62. OUT W Figure 2 Ć62: Connections for Example 5 2.
Operating Examples m Figure 2 Ć63: DSO Screen 3. Press the MENU column LOAD/SAVE button for the AWG2021. 4. Select Device from the bottom menu. 5. Select GPIB from the side menu. At this point, if the remote port is not GPIB or the GPIB is not configured for waveform transferring, these settings must be changed. In such cases, the message shown in Figure 2 -64 will appear; if you change the setting, select O.K. from the sub-menu. Figure 2 Ć64: Confirmation Message (asking if it is O.K.
Operating Examples 6. Select Load from the bottom menu. 7. Use the general purpose knob to select the name of the DSO instrument connected to the instrument and the transferring source from the Name column in the GPIB Source list. In this example, you should select “Tek TDS CH1.” See Figure 2 -65. Figure 2 Ć65: GPIB Source List 8. Set the DSO GPIB address to 1 and its communication mode to talk/listen. . If the DSO GPIB debug mode is On, a time–out error may occur. If so, switch off the debug mode. 9.
Operating Examples If Load Without Preamble in the side menu is selected, the waveform preamble will not be loaded (in other words, only the waveform data will be loaded). In such cases, all parameters will be set to the default values of the output parameters. This completes the Example 5.
Operating Examples Example 6: Using the Waveform Function Generator The instrument is equipped with a waveform function generator for generating simple waveform functions. Pressing the F.G button on the front panel will change the mode to function generator (FG) mode and enable you to set various waveform parameters. In Example 6, you will select a sine wave for CH1. Then you will set the parameters and output the waveform. 1. Press the front panel F.G (Function Generator) button.
Operating Examples 2. Select Frequency from the side menu. 3. Press 1 and the MHz/ s key in the Unit key to input the frequency with the numeric keys. 4. To set the frequency with the general purpose knob, select the index digit for input with the front panel arrow buttons (←/→). Press the ← button to move the underscore to the left or press the → button to move the underscore to the right. Turn the general purpose knob with the index digit selected to get a 1.000 MHz frequency.
Operating Examples Figure 2 Ć67: CH1 Output Parameter Setting Display This completes the sine–wave output parameter setting. Now you will check the actual waveform on the oscilloscope screen.
Operating Examples Waveform Output Connect the AWG2021 to an oscilloscope with 50 W cables and 50 W terminations as shown in Figure 2 -68. The waveform output for this instrument is calibrated for a 50 W load. W W Figure 2 Ć68: Connections for Example 6 1. Press the front panel CH1 On/Off button and switch on. The On/Off indicator should light up. In this operation, the waveform outputs continuously from the CH1 output connector.
Operating Examples AWG2021 User Manual
Introduction Section 3 will describe in detail the functions contained in each of the menus. EDIT Menu SETUP Menu MODE Menu LOAD/SAVE Menu UTILITY Menu FG Menu Each section will describe menu functions in the following order: Menu Structure. Each menu will be shown in a diagram listing the menu items from left to right, with the highest menu level on the left and the lowest menu level on the right. There are three types of menus: the bottom menu, the side menu and the sub-menus. An ellipsis (...
Introduction Execute Undo O.K. Cancel Continue 3 Ć2 Select this button to execute the currently selected menu function. For example, in the Draw... menu, pressing this button will cause the waveform to be drawn; in the Shift... menu, it will cause the waveform to move. Select this button to cancel the most previous operation — for example, Execute, calculations in the Math... sub-menu, or Marker settings, or Cut, Paste, Insert or other operation.
EDIT Menu General Description To use the AWG2021 to output arbitrary waveforms, you must first create a file for the waveform to be output. There are four file types, each created by a different editor. Files created in this manner will have an extension after the file name that identifies what type of file they are. Editor File Extension .WFM .EQU .SEQ .AST .
EDIT Menu Initial Menu To create or edit waveform files, press the EDIT button of the MENU column to display the initial menu. Figure 3 -1 shows the structure of the initial EDIT menu. MENU Button Bottom Menu Side Menu Initial Menu ÎÎÎÎ ÎÎÎÎ ÎÎÎÎ Selecting an Existing File Editor Edit New Waveform New Equation ÎÎÎ ÎÎÎ New Sequence EDIT New Autostep ÎÎÎÎ ÎÎÎÎ ÎÎÎÎ Selecting an Existing File .WFM .EQU .SEQ .AST Convolve Waveform .WFM Selecting an Existing .
EDIT Menu Menu Functions The following list shows the functions available for each menu item and the page on which you can find a description of that function. Table 3Ć1: Menu Functions Menu Function Page Edit Editing an existing file 3 Ć7 New Waveform Creating a new file (.WFM) 3 Ć7 Waveform editor 3 Ć14 Graphic display 3 Ć23, 3 Ć29 Timing display 3 Ć29, 3 Ć96 Table display 3 Ć29, 3 Ć129 Creating a new file (.EQU) 3 Ć7 Equation editor 3 Ć137 Creating a new file (.
EDIT Menu CRT Display Figure 3 -2 shows the initial menu of the EDIT. A description for each callout follows.
EDIT Menu (4) File List Name Type Size Date & Time Comment Name. Type.
EDIT Menu 3. Select Edit from the side menu. The system automatically enters the editor appropriate for the file-type extension so the selected file can be edited. Using File Editing Functions The following operations can be performed for the file that has been created: Rename Comment Copy Delete Renaming a file Comment input Copying a file Deleting a file .
EDIT Menu Figure 3 Ć3: Menu Displayed When Rename is Selected Before entering the new file name, you must delete the current file name. 3. To delete a character, press the Delete button on the front panel. This deletes the character right before the cursor. The cursor can be moved with the front panel z and ! buttons. Now, input the new file name. 4. Use the general purpose knob to select a character. 5. Press the front panel VALUE button.
EDIT Menu When O.K. is selected, the file is saved into internal memory with the changed file name and displayed in the file list on the CRT screen. Select O.K. or Cancel to return to the initial menu. . If there is already a waveform file in internal memory with the name the compiled waveform file will be given, a message is displayed asking if you are sure you want to overwrite the old file. Overwriting erases the data in the old file. Comment Input. Select Comment to input a comment.
EDIT Menu Figure 3 Ć4: Menu Displayed When Delete is Selected If you select O.K. from the side menu, the file is deleted. If you decide not to delete the file, select Cancel. When either O.K. or Cancel is selected, the system returns to the initial menu. Locking and Unlocking Files Select Lock to lock or unlock a file. When the file is locked, it is not possible to delete the file or change the file name or the comments for that file. .
EDIT Menu Figure 3 Ć5: Menu Displayed When Lock is Selected 3. Select Delete from the bottom menu. Check to make sure that the words “File locked.” is displayed in the message area to indicate that it is not possible to delete the file. 4. If you press the Lock bottom menu button again, the file is unlocked and Off in the Lock label is displayed inverted. Files on a floppy disk or in NVRam can be locked/unlocked in the same manner with the UTILITY menu.
EDIT Menu 3. Select Expand SEQ into WFM from the side menu. You will be asked to provide a name for the resulting waveform file. See Figure 3 -6. If necessary, change the default name. See “Renaming a File” described above. Figure 3 Ć6: Menu Display When Expand SEQ into WFM is Selected 4. Press O.K. to confirm the file name. Press Cancel to cancel the operation. When O.K. is pressed, the sequence file will be expanded into a waveform file and the initial menu will reappear.
EDIT Menu Waveform Editor Use the waveform editor to create or edit waveform files with the extension of .WFM. Waveform files contain waveform data, marker signal data, and the waveform output parameters set with the SETUP menu. The waveform data display formats are graphic, table, and timing. The editing functions displayed depend on the data display format. In the waveform editor, 0 to 4094 in 12-bit resolution on the vertical axis is expressed as –1.0000 to +1.0000 (with 4095 as 1.0005).
EDIT Menu Figure 3 Ć7: Graphic CRT Display In graphic display, the waveform is created or edited with the waveform displayed in the waveform editor in graphic display. For details on the different formats, see “Timing Display” and “Table Display”. Opening and Selecting Editing Areas AWG2021 User Manual Up to three waveforms can be displayed and edited in the waveform editor at the same time. This makes it easy to edit several related waveforms.
EDIT Menu Figure 3 Ć8: Waveform Editor With Three Editing Areas When there is more than one waveform displayed in the waveform editor, the following menu items will be added: Cursor Link to... will be added to the Setting menu item. See Page 3 -34. Cursor Link to.. 3 Ć16 Used to link the cursors in different editing areas. Three additional commands (Multiple Copy..., Convolute..., Compare...) will be added to the Operation menu item. See pages 3 -79, 3 -85 and 3 -88, respectively. Multiple Copy...
EDIT Menu Compare... Used to compare the waveform in the area designated by the vertical bar cursors with the waveform in another editing area. In this example, you will select three waveforms in the waveform editor. The following procedure starts in the initial EDIT menu. 1. Select New Waveform from the side menu. The new waveform will be displayed in area 1. 2. Press Select/Open from the bottom menu. In the side menu, “Waveform1” refers to the waveform file in editing area 1. 3.
EDIT Menu 5. Select O.K. from the sub-menu. When this is done, Waveform2 will be added to the side menu and the Waveform2 editing area will appear on the screen. See Figure 3 -10. Figure 3 Ć10: Waveform2 Added 6. Select Another Waveform from the side menu. 7. Using the general purpose knob, select a waveform file. In this example, we will select an existing waveform file. 8. Select Show Catalog Entry from the sub-menu. This allows you to check the waveform for the selected file on the screen.
EDIT Menu Figure 3 Ć11: Menu Display When Show Catalog Entry is Selected 9. Select Continue from the sub-menu. 10. Select O.K. from the sub-menu. Waveform3 will be added to the side menu and the Waveform3 editing area will appear on the screen. See Figure 3 -12.
EDIT Menu The three waveform items (Waveform1, Waveform2 and Waveform3) will be displayed in the side menu. You will select the waveform to be edited from these items. 11. Select Waveform2 from the side menu. A box will appear around the editing area to indicate that this waveform has been selected. To close a waveform, once again select that Waveform from the side menu and then select Close/Write from the bottom menu. See “Saving Files and Exiting the Editor” in this section.
EDIT Menu as is and a new file is created with the new file name. If you select Cancel, the input file name is canceled and the system returns to the editor without saving the data into internal memory. Although the created or edited data is not saved at this time, it is retained for further editing. Naming a File When saving a newly created file, a file name must be created. The menu for creating a file name is the same for all the editors. 1. Select Close/Write from the bottom menu. 2.
EDIT Menu 4. Press the front panel VALUE button. The selected character is inserted immediately before the cursor. 5. Repeat Steps 3 and 4 until the entire file name has been entered. In this example, we will enter the name SAMPLE. Up to 8 characters can be input. To delete a character, press the Delete button on the front panel. This deletes the character right before the cursor. The cursor can be moved with the front panel and buttons. .
EDIT Menu Graphic Display In graphic display, the waveform is displayed in graphic form in the waveform editor and it is created or edited in that form. The horizontal axis indicates time or number of points, while the vertical axis indicates the levels. Waveforms are displayed at each data point in 12-bit resolution. On the beneath the waveform, the on/off state of the marker signal is displayed in timing form. All editing operations are performed between the two vertical bar cursors.
EDIT Menu Bottom Menu Select/Open Waveform Editor Side Menu SubĆMenu Waveform1 *1 Waveform2 *1 Waveform3 Another Waveform Cut Copy to Buffer Paste from Buffer ÎÎÎÎÎ Insert Other Waveform Add Draw Point Delete Draw Point Smooth Shift Value Scale Factor New Size *2 Origin *2 Invert Clip Level Marker Set High Set Low Set Pattern Show Catalog Entry Single Waveform Math... Type Draw... Shift... Scale... Invert... Clip... Operation Marker... Dual Waveform Math...
EDIT Menu Bottom Menu Zoom Side Menu SubĆMenu Horizontal Zoom in Horizontal Zoom out Horizontal Zoom fit Horizontal Pan *3 Vertical Zoom in Vertical Zoom out Vertical Zoom fit Vertical Pan *4 *3 *3 *4 *4 Waveform Points Graphic Timing Table View type... Setting Horiz.Unit Clock *5 Cursor Link to...
EDIT Menu Menu Functions The following list describes the functions for each of the menu items and gives the number of the page on which you can find a more detailed explanation of that item. Table 3Ć2: Menu Functions Menu Function Page Select /Open Opening and selecting the editing area 3 Ć15 Operation Editing waveforms in graphic display 3 Ć41 Cut Cutting waveforms 3 Ć43 Copy to Buffer Copying waveforms 3 Ć44 Paste from Buffer Pasting waveforms 3 Ć44 44 Draw...
EDIT Menu Table 3Ć2: Menu Functions (Cont.) Graphic Display Screen Menu Function Page # ! % ! ! # "# ! $ # & % ! ) " ! # % " ' # # # ! ) The general graphic display is shown in Figure 3 -15. A description for each callout follows.
EDIT Menu (3) D $ ! ! ! " ! !$ ! ! ! # ! " (4) Horizontal Scroll Indicator ! & ' ! & $ ! Zoom ! ! & ! $ $ $ # ! ! ! & & ! $ $ ! # ! & (5) R ąąValue $ ! ! # ! " ! ! ! # " R ! # ! # Value (6) No.
EDIT Menu Cursor Link to... Grid Linking the vertical bar cursors Displaying a grid in the editing area . These settings are the same in all display formats (graphic, timing and table). In the following section, each of these items will be discussed in detail. Selecting the Waveform Data Display Format. The View type... item allows you to set the display format for the waveform data. There are three choices: graphic, timing and table. The following diagram shows the menu configuration.
EDIT Menu When you create a new waveform file, the waveform point size is set to the default value of 1000. Technically, you can change this size to any value up to 262,144 points and edit the waveform data as desired. However, due to hardware limitations, the waveform point size on this instrument is limited to 64 – 262,144 points and to the multiple of 8.
EDIT Menu Append 0 “0” (7FF) values will be added after the data until a size of a multiple of 8 is reached. Expand The data will be interpolated and expanded to make it a multiple of 8. Expand with Clock The data will be interpolated and expanded to make it a multiple of 8, and the clock speed will increase proportionately. Cancel The operation will be canceled and the editor screen will reappear. Leave as it is The operation will be canceled and the data will be written as is.
EDIT Menu Time Sets the horizontal axis unit to time. The cursor position data at the top of the CRT is displayed in time and data can be edited in time units. Point Sets the horizontal axis unit to points. The cursor position data at the top of the CRT is displayed in points and data can be edited in points. In Figure 3 -16, the display on the left shows the horizontal axis unit set to Point, while the display on the right shows this value set to Time.
EDIT Menu 250 MHz, waveform data can be edited at a resolution of 4 ns. Figure 3 -17 shows the Setting menu for Clock. Figure 3 Ć17: Menu Displayed When Clock is Selected 1. Select Setting from the bottom menu. 2. Press the Horiz. Unit button in the side menu to select Time. 3. Select Clock from the side menu. 4. Input the clock frequency with the numeric keys or the general purpose knob. The default setting for clock frequency is 100 MHz.
EDIT Menu editing area 2 to move the same distance. The following diagram shows the menu configuration. Figure 3 -18 shows a display in which two editing areas have been created and Cursor Link to... in the sub-menu has been selected. Figure 3 Ć18: SubĆMenu Showing Cursor Link to... Selected The 1z at the top of editing area 2 indicates that this area has been linked to editing area 1.
EDIT Menu 2. Select Waveform2 from the side menu. 3. Select Setting from the bottom menu. 4. Select More 1 of 2 from the side menu and then select Cursor Link to.... 5. Select Waveform1 from the sub-menu. 1z will appear at the top of editing area 2. 6. Select Go Back from the sub-menu. The Setting side menu will reappear. 7. Select Select/Open from the bottom menu. 8. Select Waveform1 from the side menu. 9. Press the front panel CURSOR button. 10.
EDIT Menu Figure 3 Ć19: Grid Set to On 1. Select Setting from the bottom menu. 2. Select More 1 of 2 from the side menu. 3. Press the Grid button in the side menu and select On. A grid will appear in the editing area. . Grid On/Off can be set same as timing and table display. However, grid display is only effect in graphic display.
EDIT Menu Creating a Standard Function Waveform When you select the Standard Waveform item, a function waveform is created in the area between the specified vertical bar cursors, or a waveform is created through calculation of the original waveform and a function waveform. When you select Standard Waveform from the bottom menu, the following items are displayed in the side menu. Some of the items will change depending on the settings. For example, if you press Setting in the bottom menu and Horiz.
EDIT Menu Setting the Parameters for Function Waveforms. The following parameters can be set for each type of function waveform designated with the Type command. Note, however, that only Amplitude and Offset can be set for a Noise waveform, while only Offset can be set for a DC waveform. Cycle 0.1 to 100,000 (in 0.1 increments) Frequency 2 Hz to f / 5 (f = Clock frequency set with Setting menu item Amplitude ±2.0005 (if set to a negative number, the wave form will haveinverse polarity) Offset –1.
EDIT Menu Figure 3 Ć20: Creating a Sine Wave Procedure 2: Adding a Waveform to Existing Data. In this example, you will add noise to the sine wave you created in Procedure 1. The procedure starts from where you left off in Procedure 1. 1. Select Type from the side menu. Turn the general purpose knob or press the Type button in the side menu and select Add Noise. 2. Select Amplitude from the side menu. Using the numeric keys or the general purpose knob, set the p-p amplitude for the noise to 0.1. 3.
EDIT Menu Figure 3 Ć21: Adding Noise to the Sine Wave . Portions of the waveform that protrude outside the editing area when the other waveform is added will be clipped. Procedure 3: Multiplying Waveforms. In this example, you will multiply the sine wave you created in Procedure 1 by another sine wave with a different frequency. The procedure starts from where you left off in Procedure 2. 1. Select Undo from the bottom menu. This will eliminate the noise waveform added in Step 2. 2.
EDIT Menu 4. Select Amplitude from the side menu. Using the numeric keys or the general purpose knob, set the p-p amplitude for the sine wave to 1. 5. Select Execute from the side menu. When you select Execute, the sine wave between the vertical bar cursors will be multiplied by the different frequency sine wave. See Figure 3 -22.
EDIT Menu Invert... Clip... Marker... Insert Other Waveform Single Waveform Math... Dual Waveform Math.... Region Shift... Invert function Clip function Setting a marker Inserting other waveforms Single waveform calculations Calculations with other waveform data Specified region shift When editing two or more waveforms simultaneously, three more items are added to the side menu (and the size of the menu increases to four pages). Multiple Copy... Convolute... Compare...
EDIT Menu Figure 3 Ć23: Defining the Editing Area Subsequent editing operations will be performed in the area that you have set between the left and right vertical bar cursors. The following section will describe each of the items in the side menu in detail. Cutting Waveforms. Cut is used to remove a portion of the waveform from the editing area. The following diagram shows the menu configuration.
EDIT Menu Figure 3 -24 shows an example of a waveform before and after a section is cut. Note that only the section between the two vertical bar cursors is removed including the bar cursors. Figure 3 Ć24: Cutting Waveforms Waveform data that has been cut is stored in the paste buffer.
EDIT Menu There are no sub-menus associated with these commands; when they are selected, the copy or paste operation is performed instantly. Marker signals associated with that waveform data are also subjected to the copy and paste operations. Pasting data into a waveform will naturally increase the number of points in that waveform. 1. Specify the waveform to be copied with the left and right vertical bar cursors. Select Copy to Buffer from the displayed side menu.
EDIT Menu When Paste from Buffer is selected, the waveform data copied into the paste buffer with the copy processing is pasted directly before the active vertical bar cursor. The left and right vertical bar cursors move to the two ends of the pasted waveform data. The paste buffer data can be inserted into a waveform or used for operations with waveforms by selecting Insert Other Waveform or Math from the Operation menu. Draw Function. Draw...
EDIT Menu 1 2 3 Figure 3 Ć26: Menu Display When Draw...
EDIT Menu 3. Use the general purpose knob to move the point cursor to the location where you want to place a point. Each time the front panel VALUE button is pressed, the direction of movement for the point cursor switches between horizontal (X) and vertical (Y). The X-Y coordinates for the point cursor position are displayed at the bottom right of the CRT display. 4. Select Add Draw Point from the sub-menu to place the draw point. Draw points can be placed outside the left and right vertical bar cursors.
EDIT Menu 11. Select Execute from the sub-menu. The points between the vertical bar cursors will be connected with straight lines, as shown in the right screen in Figure 3 -27. This is called linear interpolation. # # Figure 3 Ć27: Smoothing . To cancel drawing execution, select Undo from the bottom menu. The waveform before the drawing is displayed again. 12. Select Go Back from the current sub-menu. The display moves from the Draw...
EDIT Menu In the horizontal direction, the shift value is the number of points or time; in the vertical direction, the shift value is specified with the vertical value. 1. Move the left and right vertical bar cursors to define the section of the waveform to be shifted. Then select Shift... from the second page of the side menu (More 2 of 3). 2. Press the Shift button in the sub-menu to select Horizontal.
EDIT Menu Figure 3 Ć28: Horizontally Shifted Display 6. Press the Shift button in the sub-menu to select Vertical. 7. Select Value from the sub-menu. Use the general purpose knob or the numeric keys to input the shift point value. The waveform can be shifted between –1.0000 and +1.0005 for the full scale of the vertical axis. A positive shift moves the waveform up, a negative shift down. However, any points shifted beyond the vertical full scale are clipped. 8.
EDIT Menu Figure 3 Ć29: Vertically Shifted Display 9. Select Go Back from the sub-menu. Scaling Function. Use Scale... to change the scale for the waveform data between the vertical bar cursors. Executing scaling changes the waveform data. The following diagram shows the menu configuration for the Scale... item.
EDIT Menu of points for the entire waveform can not exceed 262 144, so if x100 scaling would give more total points than that, the maximum setting factor drops to the one that gives 262 144 points. A negative factor reverses the waveform between the vertical bar cursors creating a mirror image. Scaling with a factor under 1.00 and greater than –1.00 (±0.99) reduces the waveform horizontally between the vertical bar cursors and reduces the number of points for the entire waveform.
EDIT Menu 6. Press the Scale button in the sub-menu to select Vertical. 7. Select Origin from the sub-menu. Use the numeric keys or the general purpose knob to input the numeric value of the origin. This value is used as a reference when scaling vertically. It may be set to any value between –1.0000 and +1.0005 for the full scale of the vertical axis. 8. Select Factor from the sub-menu. 9. Use the numeric keys or general purpose knob to input the scaling factor.
EDIT Menu 11. Select Go Back from the sub-menu. The system moves from the Scale... sub-menu to the previous side menu. Invert Function. Use Invert... to invert the waveform data in the area specified with the vertical bar cursors either up/down or left/right. The following diagram shows the menu configuration for the Invert... item. ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ 1.
EDIT Menu 4. Press the Invert button in the sub-menu to select Vertical. 5. Select Execute from the sub-menu. The waveform is inverted vertically with the specified conditions. Figure 3 -33 shows an example of the waveform before and after it is inverted vertically. Figure 3 Ć33: Vertically Inverted Display 6. Select Go Back from the current sub-menu. The system returns from the Invert... sub-menu to the side menu. Clip Function. Use Clip...
EDIT Menu The Clip sub-menu item selects the area of the waveform data between the vertical bar cursors to be clipped. Either the area above the clip level (Upper) or below the clip level (Lower) can be selected. 3. Select Level from the sub-menu. 4. Use the numeric keys or the general purpose knob to input the clip level. 5. Select Execute from the sub-menu. The waveform is clipped with the specified conditions. Figure 3 -34 shows the waveform clipped above 0.3.
EDIT Menu Marker Operation (More 3 of 3) Marker... Set High Set Low Go Back Set Pattern 1 2 Import Line Data / Clear Pattern Key Data 1 Bit 4 Bits Initial Src User defined Code Config... Initial Code Out [I/O] Cancel 0 1 0 1 High/Low Invert/Keep O.K. . When a new waveform file is created, the marker signal for the first point of the waveform data is set to high as a default value. The output level for the marker signals is 1.2 V with a termination of 50 W.
EDIT Menu Figure 3 Ć35: Marker Signal 1 Set High 4. Select Go Back from the sub-menu. The system returns from the Marker... sub-menu to the side menu. Example: Setting a Marker Pattern. In this example, you will set a pattern for the marker and then create a marker signal with that pattern used as the period. Marker patterns are set with the Set Pattern item. 1. Move the left and right vertical bar cursors to define the area for setting a marker pattern, then select Marker...
EDIT Menu For detailed instructions on pattern setting, see “Setting Pattern Data” in the timing display in this section as well as “Pattern Codes” in Appendix F. For more detailed information on the method used to set patterns, see “Setting Pattern Data” in the Timing Display in this section and “Pattern Code” in Appendix F. Figure 3 -36 shows an example of pattern data being entered. Figure 3 Ć36: Entering Pattern Data 4. When you have finished creating the pattern data, select O.K.
EDIT Menu 2. Use the general purpose knob to move the active vertical bar cursor to the position where the other waveform is to be inserted. Figure 3 Ć37: Defining the Location for Insertion The waveform is inserted right before the active vertical bar cursor. However, if the cursor is at the end of the waveform, the data is inserted directly after the cursor. 3. After setting the position to insert the other waveform, select Insert Other Waveform from the side menu. A list of waveform files is displayed.
EDIT Menu Figure 3 Ć38: List of Files for Insertion 5. Select the Show Catalog Entry from the sub-menu. The waveform for the selected file is displayed. Figure 3 Ć39: File Waveform Display 6. Select O.K. from the sub-menu. The waveform from the selected file is inserted right before the active vertical bar cursor. Marker signal 1 and 2 belonging to the waveform data are processed at the same time. Select Cancel to cancel the waveform insertion. When O.K.
EDIT Menu Figure 3 Ć40: Inserting Waveforms Single Waveform Calculations. The Single Waveform Math... item allows you to perform mathematical calculations for the waveform itself. Calculations are applied to the portion of the waveform between the vertical bar cursors. Absolute Determines the absolute value for the amplitude. Square Doubles the absolute value for the amplitude. If the amplitude is a negative number, the calculated result is also negative. Cube Triples the amplitude.
EDIT Menu Type Operation (More 3 of 3) Single Waveform Math... Go Back Execute Absolute Square Cube Square Root Normalize Integral Differential To derive the Absolute value for the amplitude of a sine wave between the vertical bar cursors: 1. Create the sine wave to be subjected to Absolute calculation. Figure 3 -41 shows the sine wave before calculations are performed. Figure 3 Ć41: Waveform Example before Calculation 2. Press the CURSOR button on the front panel. 3.
EDIT Menu Figure 3 Ć42: Absolute Calculation 7. Select Go Back from the sub-menu. The system returns from the Single Waveform Math... sub-menu to the side menu. Calculation Examples. The following diagrams show examples of a waveform before and after various calculations are performed. Square.
EDIT Menu Cube. Triples the amplitude Figure 3 Ć44: Cube Calculation Square Root. Determines the square root for the absolute value of the amplitude.
EDIT Menu Normalize. Normalizes the amplitude Figure 3 Ć46: Normalize Calculation Integral. Integrating the amplitude.
EDIT Menu Differential. Differentiating the amplitude. Figure 3 Ć48: Differential Calculation Calculations With Other Waveform Data. Use Dual Waveform Math... to perform math calculations with the waveform currently being edited and other waveform data. The following calculations can be performed: Add Adds the waveform data being edited and the other waveform file data. Sub Subtracts the other waveform file data from the wave from data being edited.
EDIT Menu 1. Create the waveform to be operated on with the other waveform file data. Figure 3 -49 shows the example of waveform before the arithmetic operations. Figure 3 Ć49: Example of Waveform Before Arithmetic Operations 2. Press the front panel CURSOR button. 3. Using the general purpose knob, move the vertical cursor bars to define the area for calculation. 4. Select Dual Waveform Math... from the third page of the side menu (More 3 of 3). 5. A list of files will be displayed on the screen.
EDIT Menu Figure 3 Ć50: List of Files for Waveform Calculation 6. Select Show Catalog Entry from the sub-menu. The waveform for the selected file is displayed. See Figure 3 -51. Figure 3 Ć51: Selected File Waveform Display 7. After verifying the waveform, select Continue from the sub-menu. The waveform will disappear and the system returns to previous Dual Waveform Math... sub-menu. 8. Select the desired calculation type from the sub-menu.
EDIT Menu before Dual Waveform Math... was selected. Figure 3 -52 displays the waveforms added (Add) between the vertical bar cursors. Figure 3 Ć52: Waveform Addition Display If you select Cancel, the menu returns to the menu on display before Dual Waveform Math... was selected without any calculations being made. Data placed into the paste buffer with Cut or Copy is listed at the top of the file list with the name “Paste Buffer.
EDIT Menu Operation ( More 4 of 4 ) Type Right Left Expand Compress Shift Scale Value Interpolation Region Shift... Linear Quadratic Add Replace Data Value Config... Exclude Include Cursor Point Go Back Execute Go Back Smooth +/- Points Table 3-3 lists the differences between this function and the Shift function . Table 3Ć3: Differences Between the Shift Operations Item Shift Region Shift Area Rotates the area delimited by the cursors.
EDIT Menu ÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ! ! ! ! ! ! ! " Figure 3 Ć53: Data Shifted Using the Right" Item Although the maximum value that can be specified for the shift is the number of waveform
EDIT Menu Compress. In this case the value of the shift must be less than one half the size of the area surrounded by the left and right vertical bar cursors. The section that exceeds the position of one half the region is lost after the shift if the Data Value item (described below) is set to Replace. Shift Scale Value. When shifting waveform data, it is possible to specify a Shift Scale Value with a precision that exceeds that of the sampling points.
EDIT Menu Interpolation. The data is re-sampled when shifting by fractional amounts. Data values between data points are acquired by interpolation. The Interpolation item selects the interpolation method used. The following two options are provided. Linear interpolation Quadratic interpolation Linear interpolation is appropriate if the original waveform consists of straight lines, such as triangle or square waves. However, the peaks in waveforms with extremely sharp peaks may be flattened somewhat.
EDIT Menu Figure 3 Ć56: Quadratic Interpolation Quadratic interpolation is expressed as follows. f (x) + Ax 2 ) Bx ) C The coefficients A, B, and C in the above formula are derived using the three points including those directly preceding and following the position to be derived.
EDIT Menu Data Value. This item selects the handling of overlapping regions in the shift. Add The shifted data and the overlapping data are added. Replace Replaces the region with the shifted data. When Type is Compress, the data for points shifted beyond the center is lost. Cursor Point. This item selects whether the data boundary points are interpolated. When the Cursor Point is Exclude The points on the left and right vertical bar cursors are not interpolated.
EDIT Menu ÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎ Figure 3 Ć58: Smoothing . Since smoothing is equivalent to low pass filtering, features of the original waveform can be lost resulting in significant changes to the waveform.
EDIT Menu 2) Set the Cursor Point setting to Exclude. 3) Apply smoothing. However, there are waveforms for which smoothing may not be effective. Increasing the Size of the Area. Data that is identical across the operation can be acquired by increasing the size of the area. (See Figure 3 -60.) Smooth data is acquired when this area is shifted, as shown in the right of the figure.
EDIT Menu To designate a second editing area in the waveform editor: 1. Choose Select/Open from the bottom menu. 2. Select Another Waveform from the side menu. 3. Using the general purpose knob, select New Waveform from the waveform list and then select O.K. A second editing area will appear, as shown in Figure 3 -61. Figure 3 Ć61: Two Waveform Editing Areas Designated To select the area for waveform copying: 4. Select Waveform1 from the side menu to designate this waveform area as the source for copying.
EDIT Menu . Copying will include the point at which the cursor is located. The value indicated by at the top of the waveform area indicates the number of points between the two cursors, so the number of points that will be copied will be this value plus one point (the point at which the cursor is located). Figure 3 Ć62: Setting the Copy Source Setting the Destination for Waveform Copying 7.
EDIT Menu Figure 3 Ć63: Setting the Copy Destination To copy the waveform: 10. Select Operation from the bottom menu. 11. Select Multiple Copy... from the fourth page of the side menu (More 4 of 4). When three waveform areas have been designated in the waveform editor, select one of the remaining two editing areas as the source for waveform copying with Source item in the sub-menu. 12. Select Interval from the sub-menu. 13. Using the numeric keys, set the interval value to 500 points.
EDIT Menu 14. Select Execute from the sub-menu. If the number of points in the waveform between the vertical bar cursors in the copy source is the same as the value set for Interval, the copied waveform will be displayed repeating at the interval designated with Interval. In the example shown in Figure 3 -64, both the waveform point size and the Interval value are set to 500.
EDIT Menu Figure 3 Ć65: Waveform Copying (number of points in waveform < Interval value) If the number of points in the waveform between the vertical bar cursors in the copy source is greater than the value set for Interval, the overlapping portion will be added to the waveform. Figure 3 -66 shows an example in which the waveform point size has been set to 500 and the Interval value has been set to 300.
EDIT Menu 15. Select Go Back from the current sub-menu. The display moves from the Multiple Copy... sub-menu to the side menu. Convolution Calculations. The Convolute... menu item appears when two or more waveforms are being edited. It is used to convolute the section of the waveform between the two vertical bar cursors in one editing area with the waveform between the vertical bar cursors in another editing area. The result is normalized.
EDIT Menu Figure 3 Ć67: Waveforms Used for Waveform1 and Waveform2 The procedure after the two waveforms have been set in each editing area is as follows: Setting the convolution range 1. Select Select/Open from the bottom menu. 2. Select Waveform1 from the side menu. 3. Press the CURSOR button on the front panel. 4. Using the numeric keys or the general purpose knob, set the positions of the left and right vertical bar cursors to define the section of the waveform for convolution.
EDIT Menu 9. Using the numeric keys or the general purpose knob, set the positions of the left and right vertical bar cursors to define the section of the waveform for convolution. In this example, we will set the left cursor to point 0 and the right cursor to point 767. Calculating the waveforms 10. Select Operation from the bottom menu. 11. Select Convolute... from the fourth page of the side menu (More 4 of 4).
EDIT Menu 13. Select Go Back from the current sub-menu. The display moves from the Convolute... sub-menu to the side menu. Comparing Waveforms. The Compare... item appears when two or more waveforms are being edited simultaneously. It is used to compare the section of the waveform between the two vertical bar cursors in one editing area to the waveform between the vertical bar cursors in another editing area. The following diagram shows the menu configuration for the Compare... item.
EDIT Menu 2. Select Waveform1 from the side menu. This waveform will be the reference for comparison. 3. Press the CURSOR button on the front panel. 4. Using the numeric keys or the general purpose knob, set the positions of the left and right vertical bar cursors to define the section of the waveform for comparison. In this example, we will set the left cursor to point 125 and the right cursor to point 625. .
EDIT Menu Figure 3 Ć69: Compare... Item Selected 10. Press the Set Result to button in the sub-menu to select MARKER1. This item is used to set where the results of comparison will be displayed. 11. If you would like to apply hysteresis to the reference waveform, select Hysteresis and enter a value. If hysteresis is not necessary, this item should be set to 0.
EDIT Menu As there is less data in the Source waveform than the destination waveform, data at level 0 (in other words, a straight line) has been automatically added from point 626 to point 875 in the Source waveform.
EDIT Menu Figure 3 Ć71: Comparison With Hysteresis 13. Select Go Back from the current sub-menu. The display moves from the Compare... sub-menu to the side menu. Zooming Waveforms. The Zoom item is used to enlarge or reduce the waveform being displayed, either horizontally or vertically. This process is for display purposes only; it does not affect the waveform data.
EDIT Menu Figure 3 Ć72: Zoom Menu Horizontal Zooming. When the waveform is enlarged horizontally using the Horizontal Zoom in item, three additional items are displayed in the side menu: Horizontal Zoom out Used to reduce the waveform Horizontal Zoom fit Used to return to normal waveform size (x1) Horizontal Pan Used to scroll through the waveform when it is enlarged 1. Select Zoom from the bottom menu. 2. Press the CURSOR button on the front panel. 3.
EDIT Menu Figure 3 Ć73: Horizontal Zoom 5. Select Horizontal Zoom in again from the side menu. The degree of enlargement will increase each time the button is pressed. When the maximum enlargement is reached, the Horizontal Zoom in item will disappear. The displayed inverted portion of the horizontal scroll indicator above the waveform editing area indicates which section of the waveform is currently being displayed on the screen. 6. Select Horizontal Zoom out from the side menu.
EDIT Menu Vertical Zooming. When the waveform is enlarged vertically with the Vertical Zoom in item, three new items will be added to the side menu: Vertical Zoom out Used to reduce the waveform. Vertical Zoom fit Used to return to normal waveform size (x1). Vertical Pan Used to scroll through the waveform when it is enlarged. The process of vertical zooming is the same as that for horizontal zooming. However, the waveform is enlarged/reduced as the reference for the center of the vertical axis.
EDIT Menu Timing Display To show the timing display for the waveform editor using the View type.... item in the Setting menu follow this procedure. 1. Select Setting from the bottom menu. 2. Select View type... from the side menu. Three items will be displayed in the sub-menu: Graphic, Timing and Table. 3. Select Timing from the sub-menu. The timing display of the waveform editor will appear. See Figure 3 -75. Figure 3 Ć75: Timing Display 4. Select Go Back from the sub-menu.
EDIT Menu Timing Display Menu Structure Figure 3 -76 shows the menu configuration for the timing display. Bottom Menu Side Menu SubĆMenu Waveform1 Select/Open Waveform2 *1 Waveform3 *1 Another Waveform Cut Copy to Buffer Paste from Buffer Waveform Editor Set... Line Set High Set Low Set Pattern Shift... Invert... Copy Line... Operation Exchange Line... Line Value Line Source Destination Source Destination Source Logical Function... Destination Func Type Data Expand...
EDIT Menu Bottom Menu Side Menu SubĆMenu Horizontal Zoom in Zoom Horizontal Zoom out Horizontal Zoom fit Horizontal Pan *2 *2 *2 Waveform Points Graphic View type... Timing Table Setting Horiz.Unit Clock *3 Cursor Link to...
EDIT Menu Menu Functions The following list shows the functions available for each menu item and the page on which you can find a description of that function. Table 3Ć4: Menu Functions AWG2021 User Manual Menu Function Page Select /Open Opening and selecting the editing area 3 Ć15 Operation Editing waveforms in timing display 3 Ć104 Cut Cutting waveforms 3 Ć43, 3 Ć104 Copy to Buffer Copying waveforms 3 Ć44, 3 Ć104 Paste from Buffer Pasting waveforms 3 Ć44, 3 Ć104 Set...
EDIT Menu Timing Display Screen Figure 3 -77 shows the timing display screen. This section will describe each portion of the screen; however, descriptions of areas that are identical to the graphic display will be omitted. See “Graphic Display Screen” for a description of the graphic display.
EDIT Menu (3) Button Operations ! ! CURSOR ! CURSOR Settings for the Waveform to be Edited. Before waveform data is created, you must use the Setting item in the side menu to set the environment for editing. The method used to set values is the same as for the graphic display.
EDIT Menu Figure 3 Ć78: Count Up Pattern Display The following parameters can be set: 3 Ć102 Step The number of points for each data item. This value can be set to 1 – 10. Max The maximum value for the data. This value can be set anywhere between (Min value + 1) and 4095. Min The minimum value for the data. This value can be set anywhere between 0 and (Max value – 1). Count Down.
EDIT Menu Figure 3 Ć79: Gray Code Pattern Display Example of Waveform Data Creation. In the following operation, you will replace the data between the vertical bar cursors with a Count Up pattern, with the waveform point size set to 4096. 1. Select Standard Waveform from the bottom menu. 2. Press the CURSOR button on the front panel. Using the general purpose knob, move the left and right vertical bar cursors all the way to the left and right, respectively, so the entire editing area is selected. 3.
EDIT Menu Editing Waveform Data in Timing Display Use Operation to edit the waveform data in a variety of ways. The side menu is made up of 3 pages. To get to the next page of the menu, select More. The following list shows the names and functions of the items in the side menu. Cut Copy to Buffer Paste from Buffer Set... Shift... Invert... Copy Line... Exchange Line... Logical Function... Data Expand... Insert Other Waveform Shift Register Generator...
EDIT Menu Setting Data to High/Low. Use Set High and Set Low to set the data lines or marker in the area designated by the right and left vertical bar cursors to either High or Low. 1. Select Set... from the side menu displayed. 2. Press the CURSOR button on the front panel. 3. Using the general purpose knob, move the vertical bar cursors to designate the area for the High or Low state. 4. Select Line from the sub-menu.
EDIT Menu Setting Pattern Data Use Set Pattern to designate pattern data for the part of a data line or marker between the designated vertical bar cursors. Figure 3 -81 shows the pattern data menu that appears when you select Set Pattern from the sub-menu. Figure 3 Ć81: Pattern Data Setting Menu When the designated pattern is shorter than the area between the vertical bar cursors, the pattern data is repeated.
EDIT Menu through the rest of the data. The inverted display area in the Pattern Length indicates the portion of the pattern data currently being displayed on the screen. Pattern Length indicates the length of the pattern data that has been entered. This value will increase each time more pattern data is entered. Changing the Data Bits. When entering pattern data, you can enter data either 1 bit at a time (for each keystroke) or 4 bits at a time, depending on the setting for Key Data in the side menu.
EDIT Menu To set the point size for each item of pattern data, press the CURSOR button on the front panel and then select Point/Step. A knob icon will appear to the left of the Point/Step area. Pattern Code.Code is used to select the coding system used when the pattern strings are output. Depending on the designated length of the area between the vertical bar cursors, the code may be cut off in the middle. To select the code, use the following procedure: 1.
EDIT Menu 3. Using the general purpose knob, move the vertical bar cursors to define the area in which the pattern will be set. In this example, we will set the left vertical bar cursor to 250 and the right vertical bar cursor to 750. 4. Select Line from the sub-menu. Turning the general purpose knob, select DATA5 for which you want to set the pattern. 5. Select Set Pattern from the sub-menu. 6. Press the CURSOR button on the front panel to select Cursor Position. 7.
EDIT Menu Figure 3 Ć82: Setting Pattern Data User defined Code Config... . Users can define their own conversion tables for code conversion. This function enables RLL codes, etc. to be freely defined. For sample codes, see “Pattern Codes” in Appendix F. Conversion tables defined with this menu item are protected by the backup battery, so they are preserved even after the power is turned off. To reset this item to the factory default (NRZ), select Reset to Factory in the UTILITY menu.
EDIT Menu Figure 3 Ć83: User defined Code Conversion Menu 3. Define the codes as desired (see “Basic Operations” on the following). 4. Select Go Back to return to the Set Pattern menu. 5. Define the pattern data, using the same procedure as in steps 6 – 10 of the sample process for defining pattern data. 6. Press the CURSOR button to select Code menu item. A knob icon will appear in the upper left side of the code selection menu. 7. Turn the general purpose knob to select user defined. 8. Press O.K.
EDIT Menu Inserting a Blank Line. Pressing the ENTER key causes a blank line to be inserted above the data item marked by the cursor. . Blank lines cannot be inserted if there are more than two consecutive blank lines or if there are more than 16 lines in all. Defining Data. Move the cursor to the desired location to enter a value on the numeric keys. The value at that location will be replaced by the one you have entered.
EDIT Menu After the first time 6 and 7 appear, 0 will be treated as 6 and 1 will be treated as 7 6 and 7 read the input data and search for the same pattern. When the same pattern has been detected, the portion of the data that has been read is returned to its original status and then the next pattern is analyzed.
EDIT Menu Sample Pattern Conversion. When Source Data Pattern is unaffected by other conditions Initial Src Initial Code Out[1/0] 0 0 High/Low Source Data Pattern Converted Code In the case of the above conversion, the data will be as follows: ! " ! .
EDIT Menu When Source Data Pattern is affected by other conditions If 4 and 5 are used: Initial Src Initial Code Out[1/0] 0 0 High/Low Source Data Pattern Converted Code If 6 and 7 are used (1): Initial Src Initial Code Out[1/0] 0 0 High/Low Source Data Pattern Converted Code In the case of the above
EDIT Menu If 6 and 7 are used (2): Initial Src Initial Code Out[1/0] 0 0 High/Low Source Data Pattern Converted Code In the case of the above conversion, the data will be as follows: Importing Waveform or Marker Data as Pattern Data.
EDIT Menu Clear Pattern. When data has been entered in the pattern data input area, the Import Line Data item in the sub-menu will change to Clear Pattern. Pressing the Clear Pattern button will delete all pattern data. Shifting Waveform Data Use the shift function to shift the data between the designated vertical bar cursors in individual data lines or markers by the specified points or time. The following diagram shows the menu configuration for the Shift... item.
EDIT Menu Figure 3 Ć84: Shifting Waveform Data 5. Select Go Back from the current sub-menu. The system returns from the Shift... sub-menu to the previous side menu. Inverting Waveform Data Use Invert... to invert each data line or marker between the designated vertical bar cursors. The following diagram shows the menu configuration for the Invert... item.
EDIT Menu Figure 3 Ć85: Inverting Waveform Data State 4. Select Go Back from the current sub-menu. The system returns from the Invert... sub-menu to the previous side menu. Copying LInes Use Copy line... to copy the waveform data between the designated vertical bar cursors from one data line to another data line. Copy processing replaces the previous value of the copy destination line with the data of the copy source. The following diagram shows the menu configuration for the Copy Line...
EDIT Menu Destination selects the destination to which the waveform data selected with Source will be copied. Data line DATA 11 – DATA 0 or marker (MARKER) can be selected as the copy destination. From the copy source to the copy destination is indicated with an arrow. 4. Select Execute from the sub-menu. The data is copied with the specified conditions. Figure 3 -86 shows the screen before and after the section of waveform data between the vertical bar cursors on line DATA 0 is copied to line DATA 11.
EDIT Menu 2. Select Source from the sub-menu. Turning the general purpose knob, select one of the data lines or marker for data interchange. 3. Select Destination from the sub-menu. Turning the general purpose knob, select the other data line or marker for data interchange. 4. Select Execute from the sub-menu. The data will be exchanged as designated. Figure 3 -87 shows the screen before and after the data on line DATA 0 is exchanged with the data on line DATA 11.
EDIT Menu ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ! " ! " ! ! " $ # "! % % Types of Logical Operation. You can choose from the following six logical operation options in the Func Type sub-menu: AND NAND OR NOR EX-OR EX-NOR See “Logical Operation” in Appendix F for a description of each of these operations. 1.
EDIT Menu ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ 1. Move the vertical bar cursors to define the section of the data to be expanded. Then select Data Expand... from the third page of the side menu (More 3 of 3). 2. Select Factor from the sub-menu. Factor is used to set the degree of expansion to any value between 2x and 10x. 3.
EDIT Menu Inserting Other Waveform Data PseudoĆRandom Pulse Generator Use Insert Other Waveform to insert data from another waveform at a designated point in the waveform being edited. This item is located on the third page(More 3 of 3) of the side menu. The functions of this item are the same as for the Insert Other Waveform item for the graphic display of the waveform editor. See Page 3 -60. Use Shift Register Generator...
EDIT Menu Use the CURSOR button on the front panel to select the items needed for the shift register. The following items can be selected; the general purpose knob is used to set the desired value for each item. Register Length Register Position Point/Step Code (sets the length of the register) (sets the position of the cursor) (sets the number of points per step) (used to select the data code) Setting the Register Length. The register length may be set to any value between 2 and 32.
EDIT Menu code series) bit strings. M series bit strings are combined with several different kinds of tap arrangements. The tap arrangement will change each time the Set Maximal Linear Taps button is pressed. Setting Register Values. Use Set All Regs in the sub-menu to set all register values to 1.
EDIT Menu 1. Select Shift Register Generator... from the side menu. 2. Select User defined Code Config... from the sub menu. 3. Define the codes as desired. For the basic operations used when defining codes, see “User defined Code Config...” on Page 3 -110. 4. Select Go Back to return to the Shift Register Generator... menu. 5. Select Register Config... from the side menu. 6. Set the values for Register Length and Point/Step as well as the register value and tap. 7.
EDIT Menu 6. Select Line from the sub-menu. Turning the general purpose knob, select DATA11 for which you want to set the pattern. 7. Select Register Config... from the sub-menu. 8. Press the CURSOR button on the front panel to select Register Length. 9. Using the general purpose knob, set the register length to 15. 10. Select Clear All Taps in the sub-menu to delete all taps. 11. Select Set All Regs in the sub-menu to set all registers to 1. 12.
EDIT Menu Zooming Waveforms. The function for this item is the same as for the Zoom item in waveform editor graphic display. See Page 3 -92. Table Display To show the table display for the waveform editor using the View type.... item in the Setting menu: 1. Select Setting from the bottom menu. 2. Select View type... from the side menu. Three items will be displayed in the sub-menu: Graphic, Timing and Table. 3. Select Table from the sub-menu. The table display of the waveform editor will appear.
EDIT Menu Table Display Menu Structure Figure 3 -93 shows the menu configuration for the table display. Bottom Menu Side Menu SubĆMenu Waveform1 Select/Open Waveform2 *1 Waveform3 *1 Another Waveform Cut Operation Copy to Buffer Paste from Buffer Insert Other Waveform Waveform Points View type... Graphic Timing Table Horiz. Unit Waveform Editor Setting Point Time Clock *2 Cursor Link to... *1 Waveformx Waveformxx Link Off Binary Radix...
EDIT Menu Menu Functions The following list shows the functions available for each menu item and the page on which you can find a description of that function.
EDIT Menu Table Display Screen Figure 3 -94 shows the table display screen. This section will describe each portion of the screen; however, descriptions of areas that are identical to the graphic display will be omitted. See “Graphic Display Screen” for a description of the graphic display.
EDIT Menu (5) L ąąValue # " ! Value $ ! ! L ! # ! (6) Upper Line Cursor $ $ ! ! " (7) MARKER (1,2) $ $ # " (8) Lower Line Cursor ! [ ] " (9) Point Index or Time # # " ! # Setting
EDIT Menu Hexadecimal Waveform data is created using the 0–9 and A–F numeric keys. When the cardinal numbers are changed to Hexadecimal, numeric keys and unit keys are allocated to A–F. Real The data is input, as with regular number input, by pressing numeric keys, then pressing the ENTER key to enter the number. Any real number (Real), up to the vertical axis full scale, can be entered in the graphic display.
EDIT Menu Editing Waveform Data Waveform data can be edited at the waveform point, regardless of what item is selected in the bottom menu. Move the line cursor to the data point to be edited. 1. Press the CURSOR button on the front panel to move the line cursor. 2. When the CURSOR button is pressed, the active line cursor is toggled between Upper and Lower. 3. Use the general purpose knob to move the active line cursor to the time or point value to be edited. Enter the waveform data 4.
EDIT Menu Cut, Copy, and Paste Processing Function Use these functions cut, copy to the buffer, and paste to any other time or point value within the waveform data area between the upper and lower line cursors. The functions for these items are the same as for the corresponding items in waveform editor graphic display. See Page 3 -43 through 3–46. Inserting Other Waveform Data. Use Insert Other Waveform to insert data from another waveform at a designated point in the waveform being edited.
EDIT Menu Equation Editor Use the equation editor to edit files with the extension of .EQU. Equation file data takes the form of mathematical equations. An equation program file can have up to 100 lines. An equation file is compiled to create a waveform file and to output the waveform. Figure 3 -96 shows an example of a waveform obtained by compiling the data from an equation file and its equation.
EDIT Menu Saving Files and Exiting the Editor Use Exit/Write in the bottom menu to save the file to the internal memory of the AWG2021 and exit from the editor depending on the selected side menu item. The same procedure is used to save the file and exit from the equation editor as for the waveform editor. See “Saving Files and Exiting the Editor” in the section on the waveform editor.
EDIT Menu Menu Functions The following list shows the functions available for each menu item and the page on which you can find a description of that function.
EDIT Menu Equation Editor Menu Display Figure 3 -98 shows the general equation editor display. A description for each callout follows. 1 2 3 4 5 Figure 3 Ć98: Equation Editor CRT Display 3 Ć140 (1) File Name ********.
EDIT Menu (5) Button Operation CURSOR VALUE ENTER VALUE ENTER VALUE ENTER
EDIT Menu Creating and Editing Equation Files Select Operation in the bottom menu to create or edit an equation file. When this item is selected, the time range can be designated with the component menu and the equation can be created. Figure 3 -99 shows a menu with Operation in the bottom menu selected. Figure 3 Ć99: Menu With Operation Selected Specifying the Time Domain. The equation must specify the time domain. If the time domain is not defined, this is an error.
EDIT Menu Specification of subsequent time ranges use the component menu range( item. The clock frequency is obtained from the total time (period) set with range() and the waveform point count set with Setting, thus: Clock frequency Waveform point count Equation period In this example, you will create a sine wave with a period of 1ms, using the following equation: range(0,1ms) sin(2*pi*x) Time range Equation 1. Select Operation from the bottom menu. 2.
EDIT Menu VALUE/ENTER buttons. After the CURSOR button has been pressed, pressing the VALUE or ENTER button makes it possible to select an item from the component menu. In this state, pressing the VALUE or ENTER button again inserts the items selected from the component menu into the equation list. At this time, input with the numeric keys is also possible. The cursor (I) can also be moved using the z and ! keys on the front panel. Decimal Point.
EDIT Menu (right) parenthesis. When there are two arguments – for example, range, max, min – they are separated with a ,(comma). Variables. Here are the variables that can be used in an equation. t : x: v: Time from the head of that range() statement. Variable taking on a value from 0.0 to 1.0 within that range ( ) statement. Variable showing the current value of the waveform data at that position. Operators +, –, *, / These add, subtract, multiply, or divide the components.
EDIT Menu k The k0–k9 can be specified; these are constants that may be used in equations. Specifying a new value for the same k# replaces the old value with the new one. If no constant is defined for k, this value will be automatically set to 0. = Equals sign. = is used with k constants. Example: k0=2*pi ↵ Ends the line for the range or equation; inserting a return (↵) in the middle of the line partitions it. Functions. Here are the functions that make up the equation.
EDIT Menu Example: range(0,100 ms) sin(2*pi*1e4*t) Figure 3 Ć102: Trigonometric Function Waveform Expressed With Variable t exp(, log(, ln( Exponential function, common log function, natural log function. The log and ln arguments must be positive.
EDIT Menu Example: range(0,100 ms) log(10*(x+0.1)) Figure 3 Ć104: Equation Using log( Example: range(0,100 ms) ln(2*(x+0.
EDIT Menu sqrt( The square root; the argument must be a positive value. Example: range(0,100 ms) sqrt(sin(pi*x)) Figure 3 Ć106: Equation Using sqrt( abs( The absolute value.
EDIT Menu int( Truncates the fraction to obtain the integer. Example: range(0,100 ms) int(5*sin(2*pi*x))/5 Figure 3 Ć108: Equation Using int( round( Rounds off the fraction to obtain the integer.
EDIT Menu norm( Normalizes the range specified with range() and scales the amplitude values so that the maximum absolute value is 1.0 (i.e. a value of +1.0 or –1.0). The norm() statement comprises an entire line.
EDIT Menu max( Takes the larger of two values. min( Takes the smaller of two values. Example: range(0,100 ms) sin(2*pi*x) range(0,50 ms) min(v,0.5) range(50 ms,100 ms) max(v,–0.
EDIT Menu rnd (integer from 1 to 16,777,215) When an argument is specified, generates a random number sequence using that argument as the initial value. If the argument is omitted, 1 is used. Example: range(0,100 ms) rnd(2)/3 Figure 3 Ć112: Equation Using rnd( See “Random (rnd) Function” in Appendix F for a discussion of the algorithms for rnd functions. diff( Differentiates the function over the range specified with range(). Specified with diff(). The diff() comprises an entire line.
EDIT Menu Figure 3 Ć113: Waveform Before Calculation Figure 3 Ć114: Waveform After Differentiation Using diff( See “Differentiation” in Appendix F for a discussion of the algorithms for diff functions.
EDIT Menu integ( Integrates the function over the range specified with range(). Specified with integ(). The integ() comprises an entire line. After integ(), specify normalization (norm()) as necessary. Example: range(0,33 ms) –0.5 range(33 ms,66 ms) 0.5 range(66 ms,100 ms) –0.5 range(0,100 ms) integ() norm() Figure 3 -113 shows the waveform before integration. Figure 3 -115 shows the waveform after integration.
EDIT Menu Editing Functions When you select Operation in the bottom menu, the following items appear in the side menu: Cut Line Copy to Buffer Paste from Buffer Word Table Insert Other Equation Cutting a Line. Use Cut Line to cut out a line in the equation list. 1. Select Operation from the bottom menu. 2. Pressing the front panel CURSOR button twice puts the system into scroll mode. Pressing the CURSOR button toggles the unit between cursor mode and scroll mode. Cursor mode.
EDIT Menu Insert Other Equation File. Use Insert Other Equation to select an equation file from internal memory (see Figure 3 -116). An equation file is inserted from this list into the equation list. Figure 3 Ć116: Menu Displayed When Insert Other Equation is Selected 1. Use the same procedure as described in Cutting a Line to line up the inverted display cursor with the line where the other equation file is to be inserted. 2. Select Insert Other Equation from the side menu. 3.
EDIT Menu Figure 3 Ć117: Setting Waveform Point Count 1. Select Setting from the bottom menu. 2. Use the numeric keys or the general purpose knob to set the number of waveform points. The default value for the number of waveform points is 1000. The waveform point size can be set to any value between 1 and 32,768. However, due to limitations in outputting the waveforms from this instrument, the waveform point is limited to 64 – 32,768 points and to a multiple of 8.
EDIT Menu Compiling Equations into Waveform Data Use Compile to convert the assembled equation into waveform data and to create a waveform file. This waveform file is given the same name as the equation file it was compiled from. Here is the procedure for compiling the equation to make a waveform file. 1. Select Compile from the bottom menu. The equation is compiled. The busy icon is displayed on the status line of the CRT display to show that the compilation is being processed.
EDIT Menu time domain with the syntactical error. Correct the error as instructed by the message, and then compile again. The compiled waveform file contains the settings for the number of waveform points (set with Setting) and the clock frequency (obtained from the total time set with the range item.) Other output parameters are set to the default values. The compiled waveform also has a vertical axis on which –1.0 is data value 0 and +1.0 is data value 4094.
EDIT Menu Sequence Editor Use the sequence editor to edit files with the extension of .SEQ. Sequence files assemble a number of waveforms or sequence files in order. The file data contains waveform file names in sequence, their repetition counts, and the sequence waveform output parameters. Sequences may be up to approximately 4000 lines long. Figure 3 -119 shows an example of the data in a sequence file and the waveform display for that data.
EDIT Menu Entering the Sequence Editor 1. Press the EDIT button in the MENU column. The initial EDIT menu will appear. 2. Select Edit or New Sequence from the side menu. Edit Used to select and edit an existing sequence file (.SEQ) New Sequence Used to create a new sequence file The sequence editor screen will appear.
EDIT Menu Menu Functions The following list shows the functions available for each menu item and the page on which you can find a description of that function.
EDIT Menu Sequence Editor Menu Display Figure 3 -121 shows the general sequence editor display. A description for each callout follows. 4 5 1 2 3 6 Figure 3 Ć121: Sequence Editor CRT Display 3 Ć164 (1) File Name The name of the sequence file being edited; if the name has not been set yet, ********.SEQ is displayed. (2) Line The line number displayed inverted in the Destination list or Repeat column.
EDIT Menu (5) Catalog (6) Button Operations CURSOR Destination Repeat VALUE ENTER Repeat
EDIT Menu Creating and Editing Sequence Files Select Operation in the bottom menu to create or edit a sequence file. After you have done this, you can select a waveform or sequence file from Catalog and then put together a sequence and set the number of repetitions for that file to create the sequence file. Creating a Sequence File. In this example you will create a new sequence file. 1. Select Operation from the bottom menu. 2.
EDIT Menu Editing Functions When you select Operation in the bottom menu, the following items appear in the side menu: Cut Line Copy to Buffer Paste from Buffer Show Catalog Entry Insert Contents of Sequence (Appears when a sequence file has been selected with Catalog) Cutting a Line. Use Cut Line from the side menu to cut out a line in the Destination list. 1. Select Operation from the bottom menu. 2. Press the front panel CURSOR button. 3.
EDIT Menu Catalog File Waveform Display. Use this item to observe the waveforms of the files being assembled into the sequence. 1. Select Operation from the bottom menu. 2. Use the general purpose knob to select the file you want to observe from the Catalog. 3. Select Show Catalog Entry from the side menu. The waveform is displayed and the file name, the vertical axis voltage, the number of waveform points, and the clock frequency data are shown.
EDIT Menu . When creating a sequence file you cannot use source–sequence files that contain other sequence files. If you try to do this, a message will be displayed. In this case, you can use the Insert Contents of Sequence item to develop the sequence and insert it. 1. Select Operation from the bottom menu. 2. Press the front panel CURSOR button. 3. Use the general purpose knob to select the line where the sequence file is to be inserted from the Destination list.
EDIT Menu Figure 3 Ć123: Example of CRT Display When Show Overview is Selected 2. After observing the waveform, select Continue Operation from the side menu to return to the sequence editor.
EDIT Menu Autostep Editor Use the autostep editor to edit files with the extension of .AST. Autostep files are created by programming waveforms or sequence files. Each time a trigger signal is received, the waveform changes to the waveform for the next step, in accordance with the program. Each waveform or sequence file contains the output conditions that have been set for that file, so the output conditions can be changed for each waveform.
EDIT Menu Figure 3 Ć124: Autostep File Data and Output Waveforms Entering the Autostep Editor 1. Press the EDIT button in the MENU column. The initial EDIT menu will appear. 2. Select More from the side menu to display the second page of the side menu: More 2 of 2. 3. Select Edit or New Autostep from the side menu. Edit Used to select and edit an existing autostep file (.
EDIT Menu Autostep Editor Menu Structure The Autostep Editor menu has the structure shown in Figure 3 -125. Bottom Menu Side Menu Cut Step Copy Step Paste Step Operation Insert New Step Append New Step Insert Current SETUP Swap Channel Contents... Autostep Editor Step No.
EDIT Menu Menu Functions The following list shows the functions available for each menu item and the page on which you can find a description of that function.
EDIT Menu Autostep Editor Menu Display Figure 3 -126 shows the general autostep editor display. A description for each callout follows. 2 1 5 4 3 6 Figure 3 Ć126: Autostep Editor CRT Display AWG2021 User Manual (1) File Name The name of the autostep file being edited; if the name has not been set yet, ********.AST is displayed. (2) Step No. Indicates the step number in the program. (3) CH2 File Setting Area (Option 02) This setting area is only effective when Option 02, with CH2, is installed.
EDIT Menu (5) Clock Frequency and CH1 Operation Indicates the clock frequency and CH1 operation mode that have been saved to the CH1 file. These output parameters may be changed. (6) Button Operation This area shows how the front panel buttons operate in this menu. Output parameters can be selected by turning the general purpose knob. Pressing this key at a programmed step moves to the previous step. Pressing this key at a programmed step moves to the next step.
EDIT Menu Creating and Editing Autostep Programs Select Operation from the bottom menu to create or edit autostep programs. Up to 100 steps can be programmed. If blank steps exist in the autostep program that has been created, these steps will be deleted when you quit the editor. If blank steps exist in CH1 in an autostep file created on an instrument with Option 02 (2-channel output) installed, the instrument will stop at a blank step when the file is started up. Setting Files.
EDIT Menu 3. Press the VALUE button on the front panel. A list of files that can be set will appear. Figure 3 Ć128: File Selection List 4. Using the general purpose knob, select the desired file. 5. If you want to check the waveform of the selected file, select Show Catalog Entry from the side menu.
EDIT Menu The waveform for that file will appear along with the waveform point size, the clock frequency and the voltage value. 6. Select Continue from the sub-menu. The menu shown before you selected Show Catalog Entry will reappear. 7. Select Set from the side menu. The selected file will be inserted and the output parameters for that waveform will be set. Figure 3 Ć130: Setting a File Selecting Cancel will cancel the setting operation and the previous menu will appear.
EDIT Menu To add a step: 8. Select More 1 of 2 from the side menu and then select Append New Step. The instrument will proceed to Step 2. See “Adding a Step” in this section. Repeat this procedure to create the program. Changing Parameters. It is possible to change the output parameters for a file that has been set. Changing the output parameter values does not change the parameters in the original file. 1.
EDIT Menu Clock Settings. Select using the general purpose knob. Then press the VALUE button on the front panel. The menu shown in Figure 3 -131 will appear. Figure 3 Ć131: Clock Setting Menu Set the clock source and the clock frequency by selecting the appropriate items in the side menu. The settings for clock source and clock frequency are used for both channel 1 and channel 2. Internal Clock Selects the internal clock.
EDIT Menu clock source and clock frequency will be updated to the values you have set. using the general CH1 Operation Settings. Select purpose knob. Then press the VALUE button on the front panel. The menu shown in Figure 3 -132 will appear. Figure 3 Ć132: CH1 Operation Setting Menu Using the general purpose knob, select the type of operation to be performed with the CH1 waveform. You can only selecting Add or AM in instruments that have Option 02 installed.
EDIT Menu Filter Settings. Using the general purpose knob, select the for the channel that you want to change and then press the VALUE button on the front panel. The menu shown in Figure 3 -133 will appear. Figure 3 Ć133: Filter Setting Menu Using the general purpose knob, select the type of filter. After selecting the filter type, select O.K. from the side menu. The filter type will be updated to what you have set.
EDIT Menu Amplitude Settings. Using the general purpose knob, select the for the channel that you want to change and then press the VALUE button on the front panel. The menu shown in Figure 3 -134 will appear. Figure 3 Ć134: Amplitude Setting Menu Select the appropriate item in the side menu and set the amplitude. Amplitude Select this item and use the numeric keys or the general purpose knob to set the desired amplitude value. Default Value This item sets the amplitude to the default value of 1.
EDIT Menu Offset Settings. Using the general purpose knob, select the for the channel that you want to change and then press the VALUE button on the front panel. The menu shown in Figure 3 -135 will appear. Figure 3 Ć135: Offset Setting Menu Select the appropriate item in the side menu and set the offset. Offset Select this item and use the numeric keys or the general purpose knob to set the desired offset value. Default Value This item sets the offset to the default value of 0.000 V.
EDIT Menu Editing Functions When you select Operation in the bottom menu, the following items appear in the side menu: Cut Step Copy Step Paste Step Insert New Step Append New Step Insert Current Setup Swap Channel Contents... Cutting a Step. Use Cut Step if you wish to delete a step in the autostep file that you have programmed. 1. Select Operation from the bottom menu. 2. Using the z and ! buttons on the front panel, move to the step to be deleted. 3. Select Cut Step from the side menu.
EDIT Menu Adding a Step. Use Insert New Step and Append New Step from the side menu when you wish to add a step to an autostep file being created. Insert New Step Used to insert a step at the current step number. For example, suppose the current step number is Step 2 of 3. Selecting Insert New Step at this point will add a blank step at Step 2 and the step display will read Step 2 of 4. Append New Step Used to add a step after the current step number.
EDIT Menu 6. Press Range in the sub-menu and select Current Step or All Steps. Current step Swaps only the contents of the current step. All Steps Swaps the contents of all steps. 7. Select Execute in the sub-menu. Data will be exchanged between the designated steps in the designated channels. Jumping to a Step Use Jump in the bottom menu to go quickly to a certain step in the autostep program. Using the items in the side menu, you can jump to the first step, the last step or to any step in between.
EDIT Menu Convolution Waveform Editor (Option 09) On instruments with Option 09 installed, high-speed convolution and correlation can be performed for up to 32,000 words of waveform data in existing waveform files (those bearing the extender .WFM). The number of points in the waveform after calculation will be the sum of the point sizes of the two selected waveform files. The calculated amplitude will be normalized. .
EDIT Menu Saving Files and Exiting the Editor When you select Exit/Write from the bottom menu, depending on what you have selected in the side menu, a file name will be assigned to the calculated result and the file will be saved to internal memory, after which the editor will close. When you quit the editor, the initial EDIT menu will reappear. The same procedure is used to save the file and exit from the convolution waveform editor as for the waveform editor.
EDIT Menu Convolution Waveform Editor Menu Display Figure 3 -137 shows the general convolution waveform editor display.
EDIT Menu Selecting a Waveform File In this example, you will select a waveform file for operation. 1. Select Waveform from the bottom menu. 2. Select Waveform1 from the side menu. 3. Using the general purpose knob, select the waveform file for operation from the Select Waveform list and then select O.K. The waveform you have selected will be displayed in the Waveform1 display area under Source. 4. Select Waveform2 from the side menu. 5.
EDIT Menu Executing Convolution/Correlation When you select Operation in the bottom menu, convolution or correlation will be performed. If Differential has been selected for the Math type item, the calculated result will be differentiated. 1. Select Operation from the bottom menu. 2. Press Func type in the side menu and select either Convolution or Correlation. 3. If you would like to differentiate the calculated result, select Differential for the Math type item.
EDIT Menu Figure 3 Ć140: Sample Correlation 3 Ć194 AWG2021 User Manual
EDIT Menu FFT Editor (Option 09) On instruments with Option 09 installed, existing waveform files up to 16,000 waveform points with the extension .WFM can be edited in the frequency domain. When the editor is started, Fast Fourier transformation occurs automatically and the data is transformed into the frequency domain. When you leave the editor, inverse fast Fourier transformation is carried out to convert the frequency domain data into time domain data.
EDIT Menu Figure 3 Ć141: FFT Window Selection Menu 5. Using the general purpose knob, select the window function. When you enter the FFT editor, you must select the window function. This instrument has the following six FFT windows. Rectangle Hanning Hamming Blackman-Harris Blackman Triangle For repetitive waveforms in which the waveform data starting point and ending point match, the rectangle window is usually used.
EDIT Menu Saving Files and Exiting the Editor Select Exit/Write from the bottom menu. Then select from the side menu to save the edited file to the internal memory of the AWG2021 and exit from the editor. When this is done, the frequency domain data is converted into time domain data and saved as a waveform file. The same procedure is used to save the file and exit from the FFT editor as for the waveform editor. See “Saving Files and Exiting the Editor” in the section on the waveform editor.
EDIT Menu Menu Functions The following list shows the functions available for each menu item and the page on which you can find a description of that function. Table 3Ć12: Menu Functions 3 Ć198 Menu Function Page Select Window Selecting a window 3 Ć195 Operation Editing in the frequency domain 3 Ć200 Right peak, Left peak Searching for peaks 3 Ć201 Draw...
EDIT Menu FFT Editor Menu Display Figure 3 -143 shows the general FFT editor display. A description for each callout follows.
EDIT Menu (7) Left vertical bar cursor (8) Right vertical bar cursor (9) Button Operations CURSOR VALUE ENTER
EDIT Menu 3. Press the VALUE button on the front panel and select Magnitude. The knob icon is displayed on the Magnitude side. 4. Using the general purpose knob or the numeric keys, change the magnitude. 5. To change the magnitude for another frequency, press the CURSOR button on the front panel, and use the general purpose knob to move the active vertical bar cursor to the frequency to be edited. Next, repeat Steps 3 and 4. Editing Phase. Here is the procedure for editing the phase. 1.
EDIT Menu ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ Figure 3 -144 shows an example of the screen with the Draw... item selected. Figure 3 Ć144: Menu Displayed When Draw... is Selected When you select Draw... from the side menu, the following items will appear in the sub-menu: Add Draw Point, Delete Draw Point, Draw Area, Go Back and Execute.
EDIT Menu 3. Press Draw Area in the sub-menu and select Mag (magnitude) or Phase (phase). 4. Press the VALUE button on the front panel. Using the general purpose knob, move the point cursor to the location of the new point. Pressing the VALUE button will toggle the direction of movement from horizontal (X) to vertical (Y) and vice-versa. The location of the point cursor is displayed in the upper right-hand corner of the screen in X (frequency) and Y (magnitude or phase) coordinates. 5.
EDIT Menu Figure 3 Ć145: Drawing a Magnitude 9. To cancel the execution of a draw operation, select Undo from the bottom menu. The screen will revert to the waveform before Execute was selected. . When you quit and once again enter the waveform editor, the points you have drawn will disappear. 10. Select Go Back from the sub-menu. The system returns from the Draw... sub-menu to the previous side menu. This concludes the draw process.
EDIT Menu Figure 3 Ć146: Magnified Signal Display In the scroll indicator at the top of the screen, the section of the signal being displayed on the screen is displayed inverted. You can scroll through the frequency domain outside the screen by turning the general purpose knob. Selecting a Filter AWG2021 User Manual When Filter is selected from the bottom menu, the following four frequency filters can be selected from the side menu.
EDIT Menu Figure 3 Ć147: Low Pass Filter Figure 3 Ć148: High Pass Filter Figure 3 Ć149: Band Pass Filter 3 Ć206 AWG2021 User Manual
EDIT Menu Figure 3 Ć150: Band Cut Filter The procedure below applies the filters to the signal. 1. Select Filter from the bottom menu. 2. Select Low-Pass, High-Pass, Band-Pass, or Band-Elim from the side menu. 3. Press the VALUE button on the front panel and select the filter frequency field. 4. Using the general purpose knob or the numeric keys, set the filter frequency. 5. Press the VALUE button on the front panel to select the filter slope field. 6.
EDIT Menu Cutting Extraneous Frequency Components. Here is the procedure for using the Cut under item to remove the extraneous frequency component. 1. Select Limiter from the bottom menu. 2. Press the CURSOR button on the front panel to select the left/right vertical bar cursor. Using the numeric keys or the general purpose knob, set the domain to remove the extraneous frequency component. 3. Press the VALUE button on the front panel.
EDIT Menu DC Figure 3 Ć151: Fundamental, Odd, and Even Components Shifting Magnitudes. Here is the procedure for using the Shift Mag item to shift the magnitude to the limit level. 1. Select Limiter from the bottom menu. 2. Press the CURSOR button on the front panel to select the left/right vertical bar cursor. Using the numeric keys or the general purpose knob, set the domain to be used when shifting the magnitude. 3. Press the VALUE button on the front panel.
EDIT Menu 3 Ć210 AWG2021 User Manual
SETUP Menu General Description The SETUP menu is used to set a variety of output parameters during actual output of the waveforms and sequence waveforms that have been created with the editors. The menu can display output parameter values and selected items in both text form and as a graphic (in other words, with items connected in the form of a circuit). When the power to the instrument is turned on, the SETUP menu appears automatically.
SETUP Menu SETUP Menu Structure Figure 3 -152 shows the configuration of the SETUP menu.
SETUP Menu Menu Functions The following table shows the function of each menu item and the page to refer to for a more detailed explanation.
SETUP Menu SETUP Menu Display Figure 3 -153 shows the graphic mode for SETUP menu display. A description for each callout follows.
SETUP Menu (7) CH1 Output Parameter Status The output status of the waveform or sequence waveform is shown as follows: Period : Period Points : Number of data points Max : Upper voltage for full scale vertical axis when terminated with 50 W Min : Lower voltage for full scale vertical axis when terminated with 50 W The period is the number of data points in the waveform or sequence, multiplied by the clock frequency.
SETUP Menu Selecting the Display Format for the SETUP Menu The SETUP menu can be displayed in either text or graphic form. Graphics This is the mode normally used. This format displays the output parameters connected in the form of a circuit. Selected parameters are indicated by a inverted display around them; these values may be changed. See Figure 3 -153. Text This mode shows the output parameters in text form for each channel. It is convenient for printing a hard copy of the settings.
SETUP Menu Selecting Output Parameter Fields There are three ways to select a parameter. 1. Press the bottom button for the item to be set. Then select the channel in the side menu and select the field. 2. Press the bottom button for the item. Then press the bottom button again; each time the button is pressed, the CURSOR will move to a different channel. When you reach the desired setting field, set the appropriate value. 3. Press the CURSOR key on the front panel and select the field.
SETUP Menu To select a waveform or sequence file: 1. Select Waveform Sequence from the bottom menu. The waveform display area will be highlighted on the screen. 2. Select the channel for setting in the side menu. 3. Turn the general purpose knob to open the file list. Use the general purpose knob to select the desired waveform or sequence file from the list. 4. After the file has been selected, select O.K. in the sub-menu.
SETUP Menu When a sequence waveform is output, the output parameters for that sequence file are used. . When a sequence file is selected, and if the waveform or sequence file making up the sequence is not in internal memory, the waveform display area is blank and the output switch is off. In this case, you must load the waveform or sequence file making up the sequence into internal memory. Setting Clock Source and Frequency The Clock menu item is used to set the clock source and the clock frequency.
SETUP Menu 2. Press the Source button in the side menu and set it to Internal. The clock icon shown below will be displayed on the screen. Since the clock frequency for CH2 depends on the clock frequency for CH1, set the clock frequency for CH1 first. 3. Use the numeric keys or general purpose knob to set the internal clock frequency with the Internal Clock item. The clock frequency can be set in four digits between 10.00 Hz and 250.0 MHz. To set the CH2 clock frequency: 4.
SETUP Menu To set the Source to External: 6. Press the Source button in the side menu and select External. The clock icon shown below will be displayed on the screen. The CH1 and CH2 clocks are controlled with the external clock input from the CLOCK IN connector on the rear panel. The external clock frequency that can be input to the connector is up to 250 MHz.
SETUP Menu " ! ! ! ! ! ! " ! ! ! " Figure 3 Ć156: Multiplying CH1 Waveform by CH2 Waveform This multiplier has a bandwidth of 30 MHz for the carrier (signal) and a bandwidth of 4 MHz for the modulation signal. The waveform output from CH1 is the result of the following calculation.
SETUP Menu ! ! " " ! ! " ! ! ! Figure 3 Ć157: Adding CH1 Waveform and CH2 Waveform The adder has a 30 MHz bandwidth. The actual value is (1@5 the CH2 setting) + the CH1 setting. The added value of CH2 is 1@5 the setting and is displayed at the bottom right of the CRT screen (see example below).
SETUP Menu " ! ! ! ! ! ! " # " Î ÎÎ # Figure 3 Ć158: Multiplying CH1 Waveform by an External Waveform Table 3-14 shows the amplitudes for the output signals relative to the external modulation signals.
SETUP Menu Setting Filter The filters selections are: 50, 20, 5, 1 MHz and Through (no filter). To set Filter, perform these steps: 1. Select Filter from the bottom menu. The filter icon will be highlighted on the screen. 2. Select the channel from the side menu. 3. Turn the general purpose knob to select the desired filter. Setting Amplitude and Offset Use Amplitude and Offset to set the output amplitude and offset for the vertical axis 12-bit full scale voltage. These values are terminated with 50 W.
SETUP Menu Setting the amplitude and offset determines Max and Min values shown to the left of the waveform. In the example shown in Figure 3 -159, the Max and Min values are as follows: W W Setting Amplitude 1. Select Amplitude from the bottom menu. The amplitude icon will be highlighted on the screen. 2. Select the channel from the side menu. 3. Use the numeric keys or the general purpose knob to set the amplitude. The output amplitude can be set to any value between 0.
SETUP Menu 1. Select Amplitude from the bottom menu. 2. Select CH2 from the side menu. 3. Press the Track key in the side menu and select CH1. The linkage setting will appear below the CH2 amplitude icon. 4. Select CH1 from the side menu. 5. Turn the general purpose knob to change the CH1 amplitude. Check to make sure that the CH2 amplitude has changed accordingly. The same procedure can be used to link the offset values for other channels to the CH1 waveform.
SETUP Menu AWG2021 User Manual
MODE Menu General Description Press the MODE button in the MENU column to display the MODE menu. The MODE menu is used to set the operating mode of the waveform output with the conditions set in the SETUP menu.
MODE Menu MODE Menu Structure Figure 3 -160 shows the configuration of the MODE menu.
MODE Menu Menu Functions The following table describes the function of each of the menu items and gives the number of the page on which you can find a more detailed explanation of that item.
MODE Menu MODE Menu Display Figure 3 -161 shows the general display for the MODE menu. 4 5 1 2 3 Figure 3 Ć161: MODE Menu CRT Display 3 Ć232 (1) Channel Display Shows the channel for the waveform/sequence file names and lists. (2) Waveform/Sequence The name of the waveform or sequence file being output is shown for each channel. This waveform or sequence file is selected with the SETUP menu Waveform Sequence item.
MODE Menu (4) Operating Mode Status MODE Cont Triggered Gated Burst Waveform Advance Autostep (5) Trigger Status Stopped SETUP Waiting for Trigger SETUP
MODE Menu Impedance STOP The Slope, Level and Impedance items are used to set the trigger conditions for the external trigger signal. Figure 3 -162 shows the output waveform for an external trigger signal. Figure 3 Ć162: Output Waveform for External Trigger Signal in Triggered Mode Gated Mode Use Gated mode to control waveform or sequence output with a gate signal. The gate signal depends on the gate source.
MODE Menu Impedance STOP The Polarity, Level and Impedance items are used to set the gate conditions for the external gate signal. Figure 3 -163 shows the output waveform for an external gate signal. Figure 3 Ć163: Output Waveform for External Gate Signal in Gated Mode Burst Mode Use Burst mode to output the specified waveform or sequence for the burst count when a trigger is generated, then stop output. The trigger signal depends on the trigger source.
MODE Menu Figure 3 Ć164: Output Waveform for External Trigger Signal in Burst Mode Setting Burst Count. Burst Count sets the number of repetitions of the waveform or sequence that are output with the trigger signal. This count can be from 1 to 65 535. Waveform Advance Mode Use Waveform Advance mode to output a series of specified waveforms, in order, with a new trigger initiating the advance to output the next waveform.
MODE Menu applied to the TRIGGER INPUT connector or by pressing the front panel MANUAL button. In this mode, the first waveform is output over and over again for each channel when a trigger signal is received. When the next trigger signal is received, output of the first waveform stops after the end point of that waveform and then the second waveform is output in the same manner. The next waveform is not started at the moment a trigger is received, but rather at the completion of the previous waveform.
MODE Menu In Waveform Advance mode not only sequence files, but also waveform files can be used. In this case when the trigger is received, the file’s waveform is output continuously. When the sub sequences in a sequence file are output, they are expanded individually in the waveform memory. In Waveform Advance mode, they may not operate as intended. To avoid this, the function (Expand SEQ into WFM item on the initial EDIT menu) is used to expand the sequence file into a waveform file. See page 3 -12.
MODE Menu in progress, output stops after the end point of that waveform and then the waveform for the next step is output. Figure 3 -166 shows the output waveform for an external trigger signal.
MODE Menu Figure 3 Ć167: Autostep File List 3. Use the general purpose knob to select the file to start from the displayed list of autostep files. 4. After selecting the file, to enter the selection, select O.K. from the submenu. To cancel the file selection, select Cancel from the sub-menu. When you select O.K., the autostep program starts.
MODE Menu Setting Trigger Parameters for an External Trigger (Gate) The external trigger (gate) signal is input from the TRIGGER INPUT connector on the front panel. The maximum input voltage is ±10 V into a 1 MW input impedance, and the maximum input voltage is 5 VRMS into a 50 W input impedance. Use the Slope or Polarity, and Level items in the side menu of the MODE menu to set trigger (gate) parameters for an external trigger (gate) signal. Slope.
MODE Menu Impedance. This menu item sets the external trigger (gate) source input impedance to either 50 W or 1 MW. Press the Impedance button in the side menu to select this item. Setting Sync Signal Use the Sync menu item to select the timing with which the sync signal is generated to either the Start or End of the waveform or sequence. Each time the Sync button is pressed, the selection toggles between Start and End. This setting is the same for CH1 and CH2.
LOAD/SAVE Menu General Description Press the LOAD/SAVE button in the MENU column to display the LOAD or SAVE menu. Press the Load or Save button in the bottom menu to display the desired menu. Use the LOAD menu to load files into internal (random access) memory from the instrument’s internal non-volatile RAM memory (NVRam), from a floppy disk (Disk), or from another instrument through the GPIB interface. .
LOAD/SAVE Menu Memory Capacity When you exit from the EDIT menu, the files you created with the editors are saved into the AWG2021 internal memory (RAM). Up to 400 files (depending on size) can be saved in the internal memory. . The data in this instrument’s internal memory is lost when the power is switched off. Therefore, you must save any necessary data to mass memory. Like internal memory, the AWG2021 internal non-volatile memory (NVRam) can hold up to 400 files.
LOAD/SAVE Menu LOAD/SAVE Menu Structure Figure 3 -170 shows the configuration of the LOAD/SAVE menu. MENU Button Bottom Menu Side Menu Bottom Menu Side Menu Load Load Load All Change Directory Disk Save Save Save All Change Directory Save as ASCII Device Load NVRam Save LOAD/SAVE GPIB Load from Disk Auto Load *1 Load Load All Save Save All Load Load Without Preamble Select Source Address from NVRam Off *1 This item is displayed when an equation file (.
LOAD/SAVE Menu Menu Functions The following table describes the function of each menu item and gives the page number where you can find a more detailed explanation of that item.
LOAD/SAVE Menu LOAD Menu Display Figure 3 -171 shows the general display for the LOAD menu. A description for each callout follows.
LOAD/SAVE Menu (1) Internal memory file list This is a list of the files currently loaded into internal memory. The list shows the file names, the file types, file sizes (in bytes), the date and time the file was created, and a comment. The space remaining in internal memory, into which files can be loaded, is displayed in the upper rightĆhand corner of the list.
LOAD/SAVE Menu Selecting the Device Select Device to select the source from which files are loaded into the AWG2021 internal memory and the destination to which files are saved from internal memory. You may select Disk, NVRam or GPIB. 1. Select Device from the bottom menu. 2. Select Disk, NVRam or GPIB from the side menu. The following items are listed in the side menu: Disk A floppy disk.
LOAD/SAVE Menu Table 3Ć19: Supported Instruments Manufacturer Model Tektronix TDS Series Digital Storage Oscilloscope TDS300 Series, TDS400 Series, TDS500 [A] Series, TDS600 [A] Series 2400 Series Digital Storage Oscilloscope 2430 [A], 2432, 2440 2200 Series Digital Storage Oscilloscope 2212, 2221A, 2224, 2232 11K Series Digital Storage Oscilloscope 11201 [A], 11401, 11402 [A], 11403 [A] DSA Series Digitizing Analyzer DSA601 [A], DSA602 [A] RTD720 Waveform Digitizer 9500 Series First Data Cache 9503, 95
LOAD/SAVE Menu Loading Files from Mass Memory into Internal Memory If Disk or NVRam has been selected for Device, the LOAD menu appears when the Load item in the bottom menu is selected. See Figure 3 -172. The internal memory file list is displayed on the upper screen and the list of files saved onto mass memory is displayed on the lower screen. Figure 3 Ć172: LOAD Menu To load files into internal memory from mass memory, perform these steps: 1. Select Device from the bottom menu. 2.
LOAD/SAVE Menu 4. Use the general purpose knob to select files to load into internal memory from the mass memory file list. 5. Select Load from the side menu. The selected file is loaded into internal memory. When Load All is selected from the side menu, all the files in the specified mass memory (for a disk, the current directory) are loaded into internal memory. .
LOAD/SAVE Menu Saving Files from Internal Memory to Mass Memory If Disk or NVram has been selected for Device, the SAVE menu appears when the Save item is selected from the bottom menu. See Figure 3 -173. As for the LOAD menu, the internal memory file list is displayed on the upper screen. From this list you select the file to be saved to mass memory. Figure 3 Ć173: SAVE Menu To save files into mass memory from internal memory, perform these steps: 1. Select Device from the bottom menu. 2.
LOAD/SAVE Menu When Save All is selected from the side menu, all the files in the internal memory are saved to the specified mass memory. . When Save or Save All is executed, and there is already a file in the mass memory with the same name as a file to be saved, the system asks you if you want to replace the file now in mass memory with the one to be saved. Answer either O.K. or Cancel. Saving Data in Text Format The Save as ASCII item appears in the side menu when an equation file (.
LOAD/SAVE Menu Transferring Waveform Data Directly When GPIB has been selected for Device, waveform data can be transferred directly to the instrument from supported digital storage oscilloscopes, etc. through the GPIB interface. See Table 3-19 for a list of supported instruments. Loading Waveform Data To load a waveform file directly from one of the instruments for which direct transfer of waveform data is supported: 1.
LOAD/SAVE Menu created with the name shown in the “Loaded as” column. Figure 3 -175 shows the GPIB Source list. Figure 3 Ć175: GPIB Source List 7. Choose Select Source Address from the side menu and, using the general purpose knob, select the GPIB address for the instrument from which data is to be loaded. 8. Select Load from the side menu.
LOAD/SAVE Menu Figure 3 Ć176: List of Supported Models Made by Other Manufacturers . Contact a Tektronix sales office in the event that waveform transfer is not possible from an instrument made by another manufacturer, due to an upgrade or other change. 3. Using the general purpose knob, select the instrument in the list from which data will be loaded. 4.
LOAD/SAVE Menu Auto Loading Use the side menu of the Auto Load to automatically load files from the mass memory into the internal memory when the instrument is switched on. 1. Select Auto Load from the bottom menu. 2. Select an item from the side menu. From Disk When the instrument is switched on, files are loaded automatically from the floppy disk to the internal memory. In this case, all the files in the AWG2021 directory are loaded. If there is no AWG2021 directory, no auto load is carried out.
LOAD/SAVE Menu Supported Floppy Disk Files Table 3-20 shows a list of file name extensions denoting the type of disk files that can be loaded to the internal memory of the AWG2021. Table 3Ć20: Supported Floppy Disk Files Extension Description Result of Load Operation .ISF Waveform data files saved in ISF format (Instrument Specific Format) using the waveform save function in the S34TDS1 Data Manager softĆ ware. .
LOAD/SAVE Menu . As with other files on the instrument, the Rename, Delete, Delete All, Lock and other operations can be performed for these files, and they are also subject to the Load All and Auto Load operations in the LOAD menu. If unexpected file formats or file contents are encountered when loading .ISF, .WVN, .WFB, .WFM, .WAV, .WDT or .EQA files, an error usually results and “Invalid file format” or a similar message is displayed.
UTILITY Menu General Description Press the MENU column UTILITY button to display the UTILITY menu. The bottom menu contains the Disk, NVRam, GPIB, RS232C, Date Time, Misc, and Diag/Cal items. Use these items to do the following: AWG2021 User Manual Disk Floppy disk format Operating files saved onto disks Disk directory creation and current directory change NVRam Operating files saved onto internal non-volatile memory (NVRam) GPIB Setting GPIB Configuration. See Programmer manual for details.
UTILITY Menu UTILITY Menu Structure Figure 3 -177 shows the configuration of the UTILITY menu. MENU Button Bottom Menu Side Menu Disk Rename Delete Delete All Lock Change Directory Make Directory Format... NVRam Rename Delete Delete All Lock GPIB Talk/Listen Address Waveform Transfer Talk Only Off Bus RS232C Baudrate Data Bits Parity Stop Bits Flagging Date Time Year Month Day Hour Minute SubĆMenu UTILITY Display... Brightness Catalog Order Date Time Config...
UTILITY Menu Menu Functions The following table describes the function of each of the menu items and gives the number of the page on which you can find a more detailed explanation of that item.
UTILITY Menu Table 3Ć21: Menu Functions (Cont.
UTILITY Menu The side menu is made up of 2 pages. Select More to display the second page of the side menu. Floppy Disk Format. This instrument can format 2DD (double density) and 2HD (high density) disks in three different MS-DOS formats: IBM-PC format, NEC PC9800 series format, and Toshiba J3100 series format. Formatted disks are automatically labeled “AWG2021”. New floppy disks must be formatted before they can be used. Figure 3 -178 shows the sub-menu displayed after formatting the disk.
UTILITY Menu 3. Select Format... from the second page of the side menu (More 2 of 2). 4. The currently selected format will appear in the Type item in the sub-menu. Select the correct format with the general purpose knob. The following formats can be selected for Type: IBM-PC 2HD PC9800 2HD J3100 2HD IBM-PC 2DD PC9800 2DD When floppy disks written by this instrument are used in a personal computer, select the correct format type as indicated by Table 3-22. Table 3Ć22: MSĆDOS Formats for 3.
UTILITY Menu 6. Select Go Back from the sub-menu. The system returns from the Format... current sub-menu to the previous side menu. 7. Pressing the eject button on the right side of the disk drive ejects the floppy disk. Handling Floppy Disks. 3.5I floppy disks are easy to store and use.
UTILITY Menu ÎÎ ÎÎ ÎÎ ÎÎ ÎÎ ÎÎ ÎÎÎÎ Î Î ÎÎÎÎ ÎÎÎÎ ÎÎÎÎ ÎÎ ÎÎ ÎÎ Figure 3 Ć179: Write Protect Tab on a Floppy Disk Creating and Changing Directories. When there are many files, it becomes difficult to manage them. Placing all files of the same type into separate directories makes it easier to manage the files. In addition to files, directories can also contain sub-directories. With directories, hierarchical structures can be constructed with successive directories.
UTILITY Menu . A file hierarchy with multiple layers can be created on the disk using up to 54 characters including the \ character. The shorter the directory name, the deeper the levels that you can create. When the directory display becomes too large for the display area window, the initial section is omitted. Example: Creating a Directory. For example, to create a sub-directory called AWG2021, such as root directory: AWG2021 (DIR) – perform the following steps.
UTILITY Menu Figure 3 Ć180: File and Directory Display in the Root Directory 2. Select More 1 of 2, then Make Directory from the side menu. The menu for naming the directory is displayed. 3. Use the general purpose knob to input a directory name of AWG2021. See Figure 3 -181. The method for inputting the directory name is the same as the method for inputting a file name in the waveform editor. See “Naming a File” in the discussion of the waveform editor.
UTILITY Menu Figure 3 Ć181: Directory Name Input 4. After you have input the directory name, select O.K. from the sub-menu. The AWG2021 directory is created in the floppy disk. Example: Changing a Directory. 5. Select Change Directory from the side menu. 6. Use the general purpose knob to select the AWG2021 sub-directory you just created from the directory list. See Figure 3 -182.
UTILITY Menu 7. Select O.K. from the sub-menu. The current directory changes to the AWG2021 directory you just made and the directory display becomes Catalog:Disk\AWG2021\. At this time, the AWG2021 directory is empty. See Figure 3 -183. Figure 3 Ć183: File List for a Newly Created Directory This completes the move of the current directory to the AWG2021 sub-directory. Files and new directories can be created in this directory. Next, here is how to return the current directory to the root directory. 8.
UTILITY Menu Locking and Unlocking a File. This menu item locks a file. When a file is locked, the file can neither be changed nor erased. It locks and unlocks a file the same as the Lock item in the EDIT menu. See Page 3 -11. Internal NonĆvolatile Memory Files saved to the internal non-volatile memory can be manipulated with this bottom menu. When NVRam is selected from the bottom menu, the Rename, Delete, Delete All, and Lock side menu items are displayed.
UTILITY Menu Remote Interface The instrument’s rear panel has two remote control interface ports: IEEE STD 488 (GPIB) and RS-232-C. (Note: There is no RS-232-C port when Option 04 has been installed.) A computer can be used to control the instrument remotely through these interfaces. The port is selected using the Remote Port item [UTILITY menu Misc (bottom menu) Config... (side menu) Remote Port. GPIB These are simple descriptions of the GPIB connection and GPIB configuration setting.
UTILITY Menu Figure 3 Ć185: Menu Displayed When GPIB is Selected The instrument can be set to one of four operating modes: talk/listen, waveform transfer, talk only, or off-bus. However, you should be aware that talk only and waveform transfer modes are not compliant with IEEE 488.2-1987. AWG2021 User Manual Talk/Listen Select talk/listen mode from the side menu to communicate with the controller via the GPIB.
UTILITY Menu Actual waveform transfer is performed using the LOAD/SAVE menu. See Page 3 -255. RSĆ232ĆC Talk Only Select Talk Only from the side menu to output a hard copy of the waveform data. When the Port setting is GPIB [UTILITY menu Misc (bottom menu) Hardcopy... (side menu) Port (sub-menu)], pressing the HARDCOPY button on the front panel causes a hard copy of the waveform to be output. Off Bus Select Off Bus from the side menu to disconnect the AWG2021 from the GPIB bus.
UTILITY Menu Figure 3 Ć186: Menu Displayed When RS232C is Selected AWG2021 User Manual Baudrate Sets the transmission rate. The transmission rate of 300, 600, 1200, 2400, 4800, 9600, and 19200 can be selected with the general purpose knob. Set this parameter to the same value as set on the computer. Parity Sets the error detection method. The general purpose knob is used to select parity of None, Odd, or Even. Set this parameter to match the connected computer’s parity.
UTILITY Menu Date and Time When Date Time is selected from the bottom menu, a clock will appear on the screen, allowing you to set the date and time. The side menu will display items for Year, Month, Day, Hour and Minute. Pressing one of these items in the side menu will make it possible to set that clock parameter using the general purpose knob. The set date and time are recorded as the time stamp when a file is created. Figure 3 -187 shows the menu displayed when Date Time is selected.
UTILITY Menu minute is set at the same time the second is reset to 0. (The second is also reset to 00 when the hour is set with Hour.) The date and time can be permanently displayed on the screen if desired. See “Date/Time Display” on Page 3 -283. Other Settings and Displays Use Misc from the bottom menu to set or display the following: Setting the Display Brightness Setting the Order of Files Date/Time Display Config...
UTILITY Menu Setting the Display Brightness. The AWG2021 screen has three levels of brightness. These levels are set with the Brightness menu item. To set the screen brightness: 1. Select Misc from the bottom menu. 2. Select Display... from the side menu. 3. Select Brightness from the sub-menu. 4. Use the numeric keys or general purpose knob to input the appropriate display brightness. The display brightness can be adjusted in steps of 1% in the range 0 – 100%. The default display brightness is 70%.
UTILITY Menu Figure 3 Ć189: Menu Displayed when Catalog Order is Selected The files in the catalog are displayed in the initial EDIT menu, LOAD/SAVE and UTILITY menus. Changing the file order in a catalog will change the order in all menus. Figure 3 -190 shows the list of files as shown in the initial EDIT menu.
UTILITY Menu Figure 3 Ć190: Catalog Files Files in a catalog can be displayed by the following sorting conditions: 3 Ć282 Name1: Name Files are displayed by file name (Name) in ASCII code order. Name2: Name-Reverse Files are displayed by file name (Name) in reverse ASCII code order. Time1: Time Files are displayed by creation date (Date & Time), from newest to oldest. Time2: Time-Reverse Files are displayed by creation date (Date & Time), from oldest to newest.
UTILITY Menu To change the order in which files are displayed to Type4: 1. Select Misc from the bottom menu. 2. Select Display... from the side menu. 3. Select Catalog Order from the sub-menu. 4. Use the general purpose knob to select Type4. 5. Press the EDIT button in the MENU column. Check to make sure that the files are sorted in the order you have selected.
UTILITY Menu " Figure 3 Ć192: Date/Time Display Configuration The following diagram shows the menu configuration for the Config... item. " ! " In this section, we will discuss the Reset to Factory, Secure Erase Memory, and Remote Port items in the sub-menu. Factory Settings. Select Reset to Factory to reset this instrument’s settings to the factory values. 1. Select Misc from the bottom menu. 2. Select Config...
UTILITY Menu with the exception of Date Time (date and time) to be restored to their default settings. Default settings consist of the factory settings and the following items: Remote Port GPIB Operating Mode GPIB Address RS-232-C Parameters Baudrate Data Bits Parity Stop Bits Flagging GPIB Talk/Listen 1 9600 8 None 1 None Once deleted, data cannot be restored. 1. Select Misc from the bottom menu. 2. Select Config... from the side menu. 3. Select Secure Erase Memory from the sub-menu. 4.
UTILITY Menu Settings for Hard Copy Output When you output a hard copy, you can choose to either save the data displayed on the screen on a floppy disk as a file, or output the data through the IEEE STD 488 (GPIB) or RS-232-C interface. When you select Hardcopy... from the side menu, you can select the format for the hard copy and the output port. The following diagram shows the menu configuration for the Hardcopy... menu item.
UTILITY Menu Table 3Ć23: Format Extensions (Cont.) Format Extension Explanation Selecting the Port. Use this item to select the port from which the hard copy will be output. Three choices are available: Disk, GPIB and RS232C. Figure 3 Ć194: Port Selection Menu In this example, you will print a hard copy of the SETUP menu in TIFF format from the Disk port. 1. Select Misc from the bottom menu. 2.
UTILITY Menu This means that the hard copy has been saved to the floppy disk in TIFF format under the file name SETUP000. File names and extensions will be assigned automatically based on the menu and the format of the hard copy. File Name Extension SETUP 000 TIF Name of screen menu being printed Numbering The file name is given the name of the screen menu being printed, as shown below. Menu File Name SETUP SETUP MODE MODE_ EDIT EDIT_ LOAD/SAVE LOAD_ UTILITY UTIL_ F.
UTILITY Menu The GPIB/RS-232-C status display consists of the following items: PSC, Header, Verbose, Data and Debug. In addition, the cumulative power-on time (Up Time) is displayed. 1. Select Misc from the bottom menu. 2. Select Status... from the side menu. 3. Select System from the sub-menu. System and GPIB/RS-232-C status data will be displayed, as shown in Figure 3 -195. Figure 3 Ć195: Menu Displayed When System is Selected I/O Event Reporting.
UTILITY Menu Figure 3 Ć196: I/O Event Reporting Diagnostics and Calibrations Use this item to run the diagnostics function or to calibrate the instrument. Diagnostics. This instrument is equipped with diagnostics functions to comprehensively test itself. This makes it possible to check whether the instrument is operating correctly. A series of tests are automatically carried out when the instrument is started. These same diagnostics tests can also be initiated by selecting the Diagnostics item.
UTILITY Menu Figure 3 Ć197: Diagnostics List At the top of the diagnostics menu are three columns giving the status of the diagnostic tests. The meaning of these three columns is as follows. Diagnostics This column gives the name of the diagnostic test item. The diagnostics items are executed individually or all together. FPP is valid if Option 09 is installed. Setup CH2 and Waveform Memory CH2 are valid if Option 02 is installed. Result This column gives the results of each test item.
UTILITY Menu 4. Select Execute from the side menu. The selected diagnostics items are executed. If the test finishes without a problem, Pass is displayed on the Result column. If an error occurs, Fail is displayed. If the instrument fails a test, an error code is displayed in the Code column. Calibrations. This instrument is equipped with the system to calibrate itself. This enables the AWG2021 to operate with greater precision. A series of calibrations is carried out by selecting the Calibrations item.
UTILITY Menu 2. Select Calibrations from the side menu. 3. Turn the general purpose knob to select the desired calibration. To execute all the calibrations one after another, select All. 4. Select Execute from the side menu. The selected calibration item is carried out. If the calibration finishes without a problem, Pass is displayed on the Result column. If an error occurs, Fail is displayed. If the instrument fails a calibration, an error code is displayed in the Code column. .
UTILITY Menu 3 Ć294 AWG2021 User Manual
Function Waveform Generator Mode General Description Press the front panel F.G button to switch from arbitrary waveform generation mode into function waveform generation (FG) mode. Select the desired waveform with the bottom button. Then set the output parameters with the side button. Hereafter, function waveform generator mode will be referred to as FG mode. . FG mode is an independent of the MENU column arbitrary waveform generation mode menus.
Function Waveform Generator Mode The descriptions in this section are for an instrument with Option 02, CH2 output installed. Instruments without Option 02 have only the CH1 display.
Function Waveform Generator Mode Function Generator Menu Display Figure 3 -200 shows the general display for the FG mode menu. A description for each callout follows. 1 2 Figure 3 Ć200: FG Mode Menu Display AWG2021 User Manual (1) Channel waveform display area Displays the waveform set for that channel. When the channel is enclosed by a box, it is possible to change the output parameters for that waveform.
Function Waveform Generator Mode Setting the Output Waveform The following procedure is used to set the output waveform for a channel. Selecting the Channel 1. Press the “Channel” button in the bottom menu and select the channel. The “Channel” item is used to select the channel for which the waveform and its output parameters will be set. The waveform for the selected channel is displayed enclosed in a frame. If the instrument does not have the Option 02, only CH1 is displayed.
Function Waveform Generator Mode Setting the Amplitude The amplitude can be set in steps of 1 mV within the range 0.050 V – 5.000 V (P-P value). using the numeric keys or the general purpose knob. Figure 3 -201 shows a sine waveform whose amplitude has been set to 5V. Figure 3 Ć201: Setting the Amplitude Setting the Offset The offset for each waveform can be set in steps of 5 mV within the range ±2.5 V using the numeric keys or the general purpose knob.
Function Waveform Generator Mode Figure 3 Ć203: Waveform Polarity Setting the Duty Duty is added for the Pulse side menu. It allows you to set the duty cycle for pulse waveforms. The duty is set to 0–100% in steps of 1%. Duty is set using the numeric keys or the general purpose knob. When the duty is set to 0% or 100%, the wave will be DC. Figure 3 -204 shows a pulse waveform whose duty value has been set to 30%.
Function Waveform Generator Mode The sync signal is a 1.5 V signal into 50 W with a pulse width of 100 ns. These signals are output from the front panel CH1 SYNC connector and the rear panel CH2 SYNC OUT connector (for Option 02). Marker Signal AWG2021 User Manual The marker signal is generated at the start point for the waveform data. It is a 2.5 V signal into 50 W, whose pulse width varies with the frequency of the output signal (see Table 3-24, earlier in this section).
Function Waveform Generator Mode AWG2021 User Manual
Appendix A: Options and Accessories This chapter describes the options, and standard and optional accessories available for the AWG2021. Options The following options are available.
Appendix A: Options and Accessories Clock Output. The same clock that is fed to the AWG2021 internal D/A converter is buffered like the data and delivered to the output connector. The clock output is differential ECL output. Figure A-1 is a block diagram of the digital data output option.
Appendix A: Options and Accessories Output Connector Configuration. Figure A-2 shows the shape and pin number location of the output connector, and Table A-1 shows the output signal for each pin.
Appendix A: Options and Accessories . When loading a new waveform into waveform memory, resetting the waveform memory, or during the hold off, excess output can be generated in the data clock (see Figure A-3).
Appendix A: Options and Accessories Output Circuit and Output Waveform. The ECL buffer (10E116) output is connected directly to the output connector. When used, these signals must be terminated to –2 V with a 50 W resistor at the receiving side (user side). If this termination resistor is missing, the signals do not appear at the output connector. The same is true for the clock output (see Figure A-4).
Appendix A: Options and Accessories ÎÎÎÎ ÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎÎÎ Raise Time Clock Fall Time Rise Time / Fall Time : measure the time for
Appendix A: Options and Accessories Cable Application Example. The cable connecting the AWG2021 and the user circuit is extremely critical for reliable operation at the maximum clock frequency. . Use a coaxial cable with a characteristic impedance of 50 W for all DATA and CLOCK lines. Keep cables as short as possible.Lengths under 1 meter are desirable. To minimize signal reflection, carefully process the ends of the cables.
Appendix A: Options and Accessories Digital Data Latch Example. Figure A-9 shows an example of an external circuit for latching the digital data. CLOCK RESISTOR: 50 ohm CAPACITOR: 0.
Appendix A: Options and Accessories . Tektronix cannot be responsible for the infringement of any third-party industrial proprietary rights, copyrights, or other rights arising from the use of these circuits. . The ECB is a multi-layer board. One layer is used as ground, the other as the power supply. The printed circuit pattern uses 50 W micro–strip lines and the data lines are wired to the same length so that their delay times will be the same.
Appendix A: Options and Accessories ÎÎÎÎÎÎ ÎÎÎÎÎÎ ÎÎÎÎÎÎ ÎÎÎÎÎÎ Waveform Memory 12 Bits 12 Data D/A Clock ÎÎÎÎÎ ÎÎÎÎÎ ÎÎÎÎÎ ÎÎÎÎÎ ÎÎÎÎÎ ÎÎÎÎÎ ÎÎÎÎÎ ÎÎÎÎÎ ÎÎÎÎÎ Buffer 12 ÎÎÎÎÎ ÎÎÎÎÎ ÎÎÎÎÎ ÎÎÎÎÎ Latch 12 Option 04 Data D0 D11 12 Clock CLOCK Output Connector Figure AĆ10: Block Diagram Output Connector Configuration. Figure A-11 is the shape and pin number location of the output connector, and Table A-2 is the output signal for each pin.
Appendix A: Options and Accessories Table AĆ2: Connector Pin Assignments (Cont.) Pin Number Signal Pin Number Signal 9 D4 23 D11 (MSB) 11 D5 25 Clock 13 D6 Pins other than those mentioned are connected to ground. The pin assignments are identical for both CH1 and CH2. Operation. Operation is the same as for the basic instrument. When a waveform is not being output, the waveform’s initial data may be output to the connector. At this time, no clock is generated.
Appendix A: Options and Accessories W W Output Circuit and Output Waveform. Figure A-13 shows a diagram of the output circuit. After passing through an output resistance of 50 W, the buffer output proceeds to the output connectors. The AWG2021 can be used without terminating the receiving (user) side with a resistance of 50 W, but when waveform distortion is great the 50 W termination is required.
Appendix A: Options and Accessories 50% level of the Clock Clock Skew: within ±4 ns Middle point of the Data Data Level High:2 V or greater (into a 50 W termination) Level Low:0.8 V or less (into a 50 W termination) Figure AĆ14: Output Waveform If a cable is used, these waveforms have transmission distortion. It is necessary to latch the data with a clock before using the waveform in actual circuits at the cable receiving side (user side) and to reproduce the waveform.
Appendix A: Options and Accessories Cable Application Example. The cable connecting the AWG2021 and the user circuit is extremely critical for reliable operation at the maximum clock frequency. . Use a coaxial cable with a characteristic impedance of 50 W for all DATA and CLOCK lines. Keep cables as short as possible.Lengths under 1-meter are desirable. The AWG2021 for Option 04 comes with two digital data out cables as a standard accessory. The cable is 1-meter long and is illustrated in Figure A-16.
Appendix A: Options and Accessories Waveform Regeneration. In some cases, even a cable that has been carefully made will create transmission distortion. Figure A-17 shows a concrete example of a circuit used to regenerate the waveform. 50 W Î ÎÎÎ Î Î ÎÎÎ Î Î Î ÎÎÎÎÎ ÎÎÎÎÎ ÎÎÎÎÎ ÎÎÎÎÎ ÎÎÎÎÎ ÎÎÎÎÎ ÎÎÎÎÎ 50 W ÎÎÎÎ ÎÎÎÎ ÎÎÎÎ ÎÎÎÎ ÎÎÎÎ ÎÎÎÎ ÎÎÎÎ Î Î W Figure AĆ17: Waveform Reproduction Circuit Example .
Appendix A: Options and Accessories Option 09 (FFT Editor and Convolution Process) This option provides increased internal calculation speed and two additional editors: an FFT editor and a convolution editor. See Section 3 for more information on the FFT and convolution waveform editors. Option 1R (Rack Mount) The AWG2021 is shipped mounted in a 19-inch wide rack. In this configuration, the floppy disk drive is accessed from the front panel.
Appendix A: Options and Accessories Accessories Standard Accessories The AWG2021 includes the following standard accessories: Standard Accessory Part Number Manuals User Manual 070Ć9097Ć50 Programmer Manual 070Ć8657ĆXX Floppy disk Sample Waveform Library Disk, 3.5Ćinch 063Ć2169ĆXX Sample program, 3.5Ćinch 063Ć1708ĆXX Performance Check / Adjustment Disk, 3.
Appendix A: Options and Accessories AWG2021 User Manual
Appendix B: Performance Characteristics The performance characteristics on the AWG2021 can be divided into three categories: Nominal Traits. General characteristics are described not by equipment performance and limits but by such things as memory capacity. Warranted Characteristics. Warranted characteristics are described in terms of quantifiable performance limits which are guaranteed. Typical Characteristics.
Appendix B: Performance Characteristics Table BĆ1: Electrical Characteristics (Cont.) Characteristics Description Arbitrary Waveforms Waveform Memory Memory Length Waveform 256K × 12 bits Marker1 256K × 1 bit Marker2 256K × 1 bit Waveform 64 to 256K in multiple of 8 data points Sequence Memory 8K, 32 bits/word Scan Counter 1 to 64 K (16 bits) Burst Counter 1 to 64 K (16 bits) Clock Generator Frequency Range 10 Hz to 250 MHz Display 4 digits Resolution 0.1% 0.
Appendix B: Performance Characteristics Table BĆ1: Electrical Characteristics (Cont.) Characteristics Description Auxiliary Output SYNC When in F.G mode and the frequency is above 250 kHz, the Sync pulse occurs one time per two waveforms. Amplitude >1.2 V into 50 W, >2.4 V into open circuit Impedance 50 W MARKER1 Amplitude 2.
Appendix B: Performance Characteristics Table BĆ1: Electrical Characteristics (Cont.) Characteristics Description AM Range 2 VpĆp (-1V 1V) for 100% modulation Impedance 10 kW Clock Impedance 50 W Function Generator Waveform Shape Sine, Triangle, Square, Ramp, Pulse Output Parameter All of these values with the exception of frequency can be set independently for each channel. Frequency settings apply to each channel. Frequency 1.000 Hz to 2.
Appendix B: Performance Characteristics Table B-1-2 Cycle to Cycle Jitter (CH1 Marker 1 Out) Clock=250MS/s Clock=100MS/s StdDev Pk-Pk StdDev Pk-Pk 20.0 ps 110.0 ps 20.0 ps 90.0 ps Table B-1-3 Period Jitter (Clock Out) Clock=250MS/s Clock=100MS/s StdDev Pk-Pk StdDev Pk-Pk 11.0 ps 60.0 ps 10.5 ps 50.0 ps Table B-1-4 Cycle to Cycle Jitter (Clock Out) Clock=250MS/s Clock=100MS/s StdDev Pk-Pk StdDev Pk-Pk 20.0 ps 110.0 ps 20.0 ps 90.
Appendix B: Performance Characteristics Warranted Characteristics This section will describe the warranted characteristics of the AWG2021. These can be divided into two main categories: electrical characteristics and environmental characteristics. Performance Conditions The electrical characteristics are valid under the following conditions: 1. The instrument must have been calibrated at an ambient temperature between +20_ C to +30_ C. 2.
Appendix B: Performance Characteristics Table BĆ3: Electrical Characteristics (Cont.) Characteristics Description ** Offset Waveform is 0 VDC and Amplitude range is 0.05 V ** Accuracy Cross talk between Channels ±(1% of Offset + 5 mV) Option 02, Sine (512 points), 250 MHz Clock, Amplitude 5 V, No Offset, No Filter <-70 dBc Noise Floor Waveform is 0 VDC (7FF), Norm, No Filter, No Offset, at 250 MHz Clock 0.1 V <-140 dBm/Hz (at 10 MHz) 1.0 V <-130 dBm/Hz (at 10 MHz) 5.
Appendix B: Performance Characteristics Table BĆ3: Electrical Characteristics (Cont.) Characteristics Description ** MARKER1 ** Amplitude 2.5 V (+5%, -10%) into 50 W, 5 V (+5%, -10%) into open circuit Rise/Fall time < 8 ns Marker to Signal delay within 15 ns ** MARKER2 ** Amplitude 2.5 V (+5%, -10%) into 50 W, 5 V (+5%, -10%) into open circuit Rise/Fall time < 8 ns Marker to Signal delay within 15 ns ** CLOCK 1 V ±0.
Appendix B: Performance Characteristics Table BĆ3: Electrical Characteristics (Cont.) Characteristics Description Auxiliary Input ** TRIGGER ** Accuracy ±(5% of Level + 0.1 V) Pulse Width 15 ns minimum Input Swing 0.2 VpĆp minimum Maximum Input Volts 10 VpĆp when 1 MW selected 5 VRMS when 50 W selected Trigger to Signal delay Internal Clock 100 ns maximum External Clock 100 ns maximum + 0.
Appendix B: Performance Characteristics Table BĆ3: Electrical Characteristics (Cont.) Characteristics Description ** Add When Option 02 (second channel) installed ** Output within 5% CH1 + CH2 (value indicated at the lower right box in SETUP menu) Output can not exceed 5 VpĆp.
Appendix B: Performance Characteristics Table BĆ4: Environmental Characteristics (Cont.) Characteristics Description Dynamics Vibration Operation 0.33 mmpĆp, 10 to 55 Hz, 15 minutes Shock Non operating 294 m/s2 (30 G), halfĆsine, 11 ms duration. Installation Requirements Power Consumption (Fully Loaded) 300 watts max. Maximum line current is 4 ARMS at 50 Hz, 90 V line. Surge Current 30 A peak for < 5 line cycles, after product has been off for at least 30 s.
Appendix B: Performance Characteristics Typical Characteristics This section will describe the typical characteristics for the AWG2021. These values represent typical or average performance and are not absolutely guaranteed.
Appendix B: Performance Characteristics Table BĆ6: Certifications and compliances Category Standards or description EC Declaration of Conformity EMC Meets intent of Directive 89/336/EEC for Electromagnetic Compatibility.
Appendix B: Performance Characteristics Table BĆ6: Certifications and compliances (cont.
Appendix C: Performance Verification Before Verification This section describes the verification procedures, tells you when to use the procedures, and gives conventions used in their structure. The procedures are: Preparation Self Tests Performance Tests These procedures verify the AWG2021 Arbitrary Waveform Generator functionality.
Appendix C: Performance Verification a. First Substep First Subpart Second Subpart b. Second Substep 2. Second Step Instructions for menu selection follow this format: FRONT PANEL BUTTON Main Menu Button Side Menu Button. For example, “Press UTILITY Misc Config... Reset to Factory O.K.
Appendix C: Performance Verification Equipment Required Prerequisites 1. Verify that internal diagnostics pass: Do the following substeps to verify passing internal diagnostics. a. Display the diagnostics menu and select all tests: Push UTILITY Diag/Cal Diagnostics xxxx All. The list on the left shows the tests available for diagnostics.
Appendix C: Performance Verification Calibration The AWG2021 includes internal calibration routines that check electrical characteristics such as amplitude, offset, trigger level, clock, filters, X5 output amplifier and attenuation, and adjust internal calibration constants as necessary. Equipment Required Prerequisites 1.
Appendix C: Performance Verification . The interactive tests on the Diag/Cal menu are for manufacturing use at the factory. Performance Tests This section contains a series of procedures for checking that the AWG2021 Arbitrary Waveform Generator performs as warranted.
Appendix C: Performance Verification memory. For instructions on loading files, see Loading Sample Waveforms on page 2 -28 in section 2. Related Information Equipment Required Read Preparation and Conventions on page C-1. Also, if you are not familiar with operating the AWG2021, read in section 2 before doing any of these procedures. The following equipment is required to check the performance of the AWG2021.
Appendix C: Performance Verification Table CĆ1: Test Equipment (Cont.) Item Minimum Requirements Example Purpose Digital multimeter DC volts range: 0.05ĂV to 5ĂV Accuracy: 0.1% Fluke 8842A Used throughout the checks to measure voltage. Function generator Output voltage: -5ĂV to 5ĂV Tektronix FG 5010 ProgramĆ mable Function Generator* Used to input the trigger signal.
Appendix C: Performance Verification Table CĆ2: File List for Performance Check/Adjustment Disk EDIT Menu Wfm Shape Wfm Point Clock Operation Filter Amp Offset Usage 1000 1 MHz Normal Through 1V 0V Cont, TrigĆ gered, Burst , Gated Mode 1200 1000 200 100ĂMHz Normal Through 1ĂV 0ĂV Waveform Advance Mode MODE_AST.AST Step: 1 ASTĆ1.WFM 1000 250ĂkHz Normal Through 3ĂV 0ĂV Autostep Mode Step: 2 ASTĆ2.WFM 200 150ĂkHz Normal Through 1.5ĂV 0ĂV 200 25ĂkHz Normal Through 0.
Appendix C: Performance Verification Table CĆ2: File List for Performance Check/Adjustment Disk (Cont.) EDIT Menu Wfm Point Clock Operation Filter Amp Offset Usage GAIN_OFF.AST Step: 1 GAINĆ1.WFM 1000 1 MHz Normal Through 0.5 V 0V Gain Accuracy Step: 2 GAINĆ2.WFM 1000 1 MHz Normal Through 0.5 V 0V Step: 3 GAINĆ3.WFM 1000 1 MHz Normal Through 5.0 V 0V Step: 4 GAINĆ4.WFM 1000 1 MHz Normal Through 5.0 V 0V Step: 5 OFFSETĆ1.WFM 1000 1 MHz Normal Through 0.05 V 2.
Appendix C: Performance Verification Operating Mode Checks These procedures check operation of the Cont, Triggered, Burst, Gated, Waveform Advance, and Autostep modes. Check Cont Mode Electrical Characteristic Checked " # Equipment Required "W ! Prerequisites # 1. Install the test hookup and set test equipment controls: a.
Appendix C: Performance Verification 2. Set the AWG2021 controls and select the waveform file: a. Initialize AWG2021 controls: Push UTILITY Misc Config... Reset to Factory O.K. b. Select the file: Push SETUP Waveform Sequence, if necessary, to select a waveform file for CH1. Waveform Sequence toggles between the CH1 files (upper list) and the CH2 files (lower list). Turn the general purpose knob to display the list of waveform files and highlight the MODE.WFM file. Push ENTER to select the file.
Appendix C: Performance Verification FG 5010 AWG2021 TDS 540 Figure CĆ4: Triggered Mode Initial Test Hookup c. Set the oscilloscope controls: Vertical . . . . . . . . . . . . . . . . . . . . . . . . . CH1 coupling: . . . . . . . . . . . . . . . . CH1 scale . . . . . . . . . . . . . . . . . . . . CH1 input impedance: . . . . . . . . . . Horizontal Sweep . . . . . . . . . . . . . . . . . . . . . . . Trigger Source . . . . . . . . . . . . . . . . . . . . . .
Appendix C: Performance Verification 2. Set AWG2021 controls and select the waveform file: a. Initialize AWG2021 controls: Push UTILITY Misc Config... Reset to Factory O.K. b. Modify the AWG2021 default settings: Push MODE Triggered Slope to select Positive slope. Select Level from the side menu and turn the general purpose knob to select a 1 V trigger level. Select Impedance from the side menu to select 50 W impedance. c.
Appendix C: Performance Verification Check Burst Mode Electrical Characteristic Checked " # Equipment Required "W ! Prerequisites # 1. Install test hookup and set test equipment controls: a. Hook up the oscilloscope: Connect the AWG2021 CH1 output connector through the coaxial cable to the CH1 vertical input connector on the oscilloscope (see Figure C-5).
Appendix C: Performance Verification c. Select the file: Push SETUP Waveform Sequence, if necessary, to select a waveform file for CH1. Waveform Sequence toggles between the CH1 files (upper list) and the CH2 files (lower list). Turn the general purpose knob to highlight the MODE.WFM file. Push ENTER to select the file. 3. Turn on the AWG2021 CH1 output: Push the CH1 button so that the LED above the CH1 output connector is on. 4.
Appendix C: Performance Verification AWG2021 TDS 540 FG 5010 Figure CĆ6: Gated Mode Initial Test Hookup c. Set oscilloscope controls: Vertical . . . . . . . . . . . . . . . . . . . . . . . . . CH1, CH2 coupling . . . . . . . . . . . . CH1, CH2 scale . . . . . . . . . . . . . . . CH1 input impedance . . . . . . . . . . CH2 input impedance . . . . . . . . . . Mode . . . . . . . . . . . . . . . . . . . . . . . Horizontal Sweep . . . . . . . . . . . . . . . . . . . .
Appendix C: Performance Verification 2. Set the AWG2021 controls and select the waveform file: a. Initialize AWG2021 controls: Push UTILITY Misc Config... Reset to Factory O.K. b. Modify the AWG2021 default settings: Push MODE Gated Polarity to highlight Positive. Select Impedance from the side menu to highlight 1 MW. c. Select the file: Push SETUP Waveform Sequence, if necessary, to select a waveform file for CH1.
Appendix C: Performance Verification Figure CĆ7: Waveform Output Signal with Positive Gate Signal c. Change the AWG2021 trigger polarity to negative: Push MODE Polarity to change the polarity to Negative. d. Check gated mode with a negative gate signal: Check the oscilloscope displays a sinewave when the gate signal is low. Figure CĆ8: Waveform Output Signal with Negative Gate Signal 6.
Appendix C: Performance Verification Check Waveform Advance Mode Electrical Characteristic Checked " " $ % Equipment Required $W # Prerequisites ! % 1. Install test hookup and set test equipment controls: a. Hook up the oscilloscope: Connect the AWG2021 CH1 output connector through the coaxial cable to the CH1 vertical input connector on the oscilloscope (see Figure C-9).
Appendix C: Performance Verification Push MODE Waveform Advance Slope to highlight Positive. Select Level from the side menu, and turn the general purpose knob to select a 1.0 V level. Select Impedance from the side menu to highlight 50 W. c. Select waveform file: Push SETUP Waveform Sequence, if necessary, to select a waveform file for CH1. Waveform Sequence toggles between the CH1 files (upper list) and the CH2 files (lower list). Highlight the MODE_ADV.
Appendix C: Performance Verification AWG2021 TDS 540 Figure CĆ10: Autostep Mode Initial Test Hookup b. Set the oscilloscope controls: Vertical . . . . . . . . . . . . . . . . . . . . . . . . . CH1 coupling . . . . . . . . . . . . . . . . . CH1 scale . . . . . . . . . . . . . . . . . . . . CH1 input impedance . . . . . . . . . . Horizontal Sweep . . . . . . . . . . . . . . . . . . . . . . . Trigger Source . . . . . . . . . . . . . . . . . . . . . . Coupling . . . . . . . . . . . . . .
Appendix C: Performance Verification Select Start within the Sync frame at the bottom menu. 3. Turn on the AWG2021 CH1 output: If the LED above the CH1 output connector is not on, push the CH1 button. 4. Check autostep mode: Push the AWG2021 MANUAL TRIGGER button, and check that the oscilloscope momentarily displays one sine wave cycle with a different frequency and amplitude each time you push and release the button. 5. End procedure: Disconnect the oscilloscope.
Appendix C: Performance Verification FG 5010 AWG2021 8842A Figure CĆ11: External AM Operation Initial Test Hookup c. Set DMM controls: Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . VDC Range . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . Front d. Set function generator controls: Function . . . . . . . . . . . . . . . . . . . . . . . . Mode . . . . . . . . . . . . . . . . . . . . . . . . . . .
Appendix C: Performance Verification Turn the general purpose knob to highlight the OPE.AST file. Push ENTER. 3. Turn on the AWG2021 CH1 output: If the LED above the CH1 output connector is not on, push the CH1 button. 4. Enable the function generator output: Turn on the function generator output. 5. Check external AM operation: Check that the step number displayed on the AWG2021 MODE menu is Step 1 (see Figure C-12).
Appendix C: Performance Verification Set the function generator offset value to –1 V. Check that the DMM voltage reading is in the range from –0.125 to 0.125 V (0% modulation). 6. End procedure: Keep the test connections and instrument settings for the next check.
Appendix C: Performance Verification Check Internal AM Operation (Option 02 only) Electrical Characteristic Checked Arithmetic Operation, Amplitude Modulation, on pageĂBĆ9. Equipment Required Two 50ĂW coaxial cables, a function generator, and a digital multimeter (DMM). Prerequisites The AWG2021 meets the prerequisites listed on page CĆ5. It also requires Option 02 (CH2 output channel) in the AWG2021. 1. Use test hookup and control settings from previous check. 2. Check internal AM operation: a.
Appendix C: Performance Verification 3. End procedure: a. Disable function generator output: Turn the function generator output off. b. Remove equipment: Disconnect connections to the test equipment. Clock Frequency and Amplitude Checks These procedures check the accuracy of the AWG2021 clock frequency and the waveform output amplitude. Check Clock Frequency Accuracy Electrical Characteristic Checked Clock Generator, Accuracy, on pageĂBĆ6.
Appendix C: Performance Verification b. Set frequency counter controls: CHANNEL A Termination . . . . . . . . . . . . . . . . . . Slope . . . . . . . . . . . . . . . . . . . . . . . Attenuation . . . . . . . . . . . . . . . . . . . Coupling . . . . . . . . . . . . . . . . . . . . . FREQ A 50 W Negative X5 AC 2. Set AWG2021 controls and select the waveform: a. Initialize AWG2021 controls: Push UTILITY Misc Config... Reset to Factory O.K. b.
Appendix C: Performance Verification Table CĆ3: Clock Frequency Accuracy Clock Frequency Frequency Range 150 MHz 149.9925ĂMHz - 150.0075ĂMHz 1 MHz 0.99995ĂMHz – 1.00005ĂMHz 1 kHz 0.99995ĂkHz - 1.00005ĂkHz 10 Hz 9.9995ĂHz - 10.0005ĂHz 4. End procedure: Disconnect the frequency counter. Check Clock Amplitude Electrical Characteristic Checked Auxiliary Outputs, Clock, Amplitude, on pageĂBĆ8. Equipment Required A 50ĂW coaxial cable, an SMAĆBNC adapter, and an oscilloscope.
Appendix C: Performance Verification b. Set oscilloscope controls: Vertical . . . . . . . . . . . . . . . . . . . . . . . . . Coupling . . . . . . . . . . . . . . . . . . . . . Scale . . . . . . . . . . . . . . . . . . . . . . . . Input impedance . . . . . . . . . . . . . . . Horizontal Sweep . . . . . . . . . . . . . . . . . . . . . . . Trigger Source . . . . . . . . . . . . . . . . . . . . . . Coupling . . . . . . . . . . . . . . . . . . . . . Slope . . . . . . . . . . . . . . . . . . . . . . . Level . .
Appendix C: Performance Verification Gain and Offset Accuracy Checks These procedures check the accuracy of the AWG2021 gain and offset. . The gain and offset accuracy checks are structured as a continuous test. After Check Gain Accuracy, the next test uses the control settings from the last test and uses the next step in the sequence file. Check Gain Accuracy Electrical Characteristic Checked Main Output, Amplitude, Accuracy, on pageĂBĆ6.
Appendix C: Performance Verification b. Select the AWG2021 waveform file: Push MODE Autostep Select Autostep File to choose a sequence file for CH1. Turn the general purpose knob to select the GAIN_OFF.AST file. Push ENTER. 3. Check gain accuracy: Check that the displayed step is Step 1 on the MODE menu. If it is not, select the side menu STOP button to return to Step 1. Note the DMM reading as “A” for this value.
Appendix C: Performance Verification Check Offset Accuracy Electrical Characteristic Checked Main Output, Offset, Accuracy, on pageĂBĆ6. Equipment Required A 50ĂW coaxial cable, 50ĂW termination, BNCĆtoĆdual banana adapter, and a digital multimeter (DMM). Prerequisites The AWG2021 meets the prerequisites listed on page CĆ5. 1. Use the test hookup and test equipment settings from previous check, however, add a 50 W termination at the DMM input. 2.
Appendix C: Performance Verification Pulse Response Check This procedure checks the pulse response characteristics of the AWG2021 output waveforms at amplitudes of 0.5 and 1 V. Electrical Characteristic Checked Main Outputs, Pulse Response, on pageĂBĆ7. Equipment Required A 50ĂW coaxial cable and an oscilloscope. Prerequisites The AWG2021 meets the prerequisites listed on page CĆ5. 1. Install test hookup and set test equipment controls: a.
Appendix C: Performance Verification 2. Set the AWG2021 controls and select the waveform file: a. Initialize AWG2021 controls: Push UTILITY Misc Config... Reset to Factory O.K. b. Select waveform file: Push SETUP Waveform Sequence, if necessary, to select a waveform file for CH1. Waveform Sequence toggles between the CH1 files (upper list) and the CH2 files (lower list). Turn the general purpose knob to select the PULSE.WFM file. Push ENTER. 3.
Appendix C: Performance Verification Press the numeric key 1, and press the units key V to select an amplitude of 1 V. c. Repeat substeps 4a through e, checking to the follow limits: Rise time . . . . . . . . . . . . . . . . . . . . . . . . Aberrations . . . . . . . . . . . . . . . . . . . . . . Flatness . . . . . . . . . . . . . . . . . . . . . . . . . Fall time . . . . . . . . . . . . . . . . . . . . . . . . 4.2 ns, maximum 0.4 div., maximum 0.15 div., maximum 4.2 ns, maximum 6.
Appendix C: Performance Verification b. Set oscilloscope controls: Vertical . . . . . . . . . . . . . . . . . . . . . . . . . CH1 Coupling . . . . . . . . . . . . . . . . CH1 Scale . . . . . . . . . . . . . . . . . . . CH1 Input Impedance . . . . . . . . . . Horizontal Sweep . . . . . . . . . . . . . . . . . . . . . . . Trigger Source . . . . . . . . . . . . . . . . . . . . . . Coupling . . . . . . . . . . . . . . . . . . . . . Slope . . . . . . . . . . . . . . . . . . . . . . . Level . . . . . . . . . . .
Appendix C: Performance Verification 4. Check rear-panel CH1 MARKER Out 2 pulse amplitude: a. Check CH1 MARKER 2 OUT pulse amplitude: Remove the coaxial cable from the AWG2021 front-panel CH1 MARKER 1 connector and connect it through the SMA-BNC adapter to the rear-panel CH1 MARKER 2 OUT connector. Check that the pulse amplitude of the displayed waveform is from 2.250 Vp-p to 2.625 Vp-p. 5.
Appendix C: Performance Verification FG 5010 AWG2021 TDS 540 Figure CĆ18: External Trigger Level Accuracy Initial Test Hookup c. Set oscilloscope controls: Vertical . . . . . . . . . . . . . . . . . . . . . . . . . CH1 Coupling . . . . . . . . . . . . . . . . CH1 Scale . . . . . . . . . . . . . . . . . . . CH1 Input Impedance . . . . . . . . . . Horizontal Sweep . . . . . . . . . . . . . . . . . . . . . . . Trigger Source . . . . . . . . . . . . . . . . . . . . .
Appendix C: Performance Verification 2. Select the AWG2021 waveform file and set AWG2021 controls: a. Initialize AWG2021 controls: Push UTILITY Misc Config... Reset to Factory O.K. b. Modify AWG2021 default settings: Push MODE Gated Polarity to highlight Positive. Select Level from the side menu, and turn the general purpose knob to select 1 V. (You can also use the numeric and units keys to select 1 V; then push ENTER.) Select Impedance from the side menu to highlight 1 MW. c.
Appendix C: Performance Verification b. Change the AWG2021 controls: Push MODE Polarity to highlight Negative. Select Level from the side menu, and turn the general purpose knob to select –1 V. (You can also use the numeric and units keys to select –1 V; then push ENTER.) c. Check external trigger level accuracy: Gradually decrement the function generator offset level until a waveform is displayed on the oscilloscope. Check that that the function generator offset level is from –1.15 V to –0.
Appendix C: Performance Verification FG 5010 AWG2021 TDS 540 Figure CĆ19: External CLOCK IN Initial Test Hookup c. Set oscilloscope controls: Vertical . . . . . . . . . . . . . . . . . . . . . . . . . Coupling . . . . . . . . . . . . . . . . . . . . . Scale . . . . . . . . . . . . . . . . . . . . . . . . Input Impedance . . . . . . . . . . . . . . Horizontal Sweep . . . . . . . . . . . . . . . . . . . . . . . Trigger Source . . . . . . . . . . . . . . . . . . . .
Appendix C: Performance Verification 2. Select the AWG2021 waveform file and set AWG2021 controls: a. Initialize AWG2021 controls: Push UTILITY Misc Config... Reset to Factory O.K. b. Select waveform file: Push SETUP Waveform Sequence, if necessary, to select a waveform file for CH1. Waveform Sequence toggles between the CH1 files (upper list) and the CH2 files (lower list). Turn the general purpose knob to highlight the EXT_CLK.WFM file. Push ENTER. 3.
Appendix C: Performance Verification 1. Install test hookup and set test equipment controls: a. Hook up termination board: Connect the AWG2021 rear ECL digital data output through a digital data output cable to the termination board (see Figure C-20). b. Hook up power supply: Connect the power supply output through the test leads to the GND TP100 and –2VD TP120 terminals on the termination board. c. Hook up oscilloscope: Connect the oscilloscope probe to the CH1 vertical input.
Appendix C: Performance Verification Horizontal Sweep . . . . . . . . . . . . . . . . . . . . . . . Adjust as needed Trigger Mode . . . . . . . . . . . . . . . . . . . . . . . Auto e. Set power supply controls: Parameter Supply select . . . . . . . . . . . . . . . . . Negative Voltage . . . . . . . . . . . . . . . . . . . . . . 2 2. Select the AWG2021 waveform file, and set AWG2021 controls: a. Initialize AWG2021 controls: Push UTILITY Misc Config... Reset to Factory O.K. b.
Appendix C: Performance Verification J150 J200 D2 D3 D4 D5 D6 D7 D9 D8 D10 D11 CLK D1 D0 D2 D3 D4 D5 D6 D7 D9 D8 D10 D11 GND TP200 D1 D0 J210 CLK –2VD TP120 GND TP210 GND TP100 Figure CĆ21: Output Pins on the Termination Board 5. Turn off equipment output and disconnect test hookup: a. Disable power supply output: Turn off power supply output. b. Remove connections: Disconnect all connections to the AWG2021.
Appendix C: Performance Verification TTL DIGITAL DATA OUT Check (Option 04) This procedure checks the AWG2021 TTL DIGITAL DATA OUT at the rear panel. . This check requires that the AWG2021 has Option 04 installed. Electrical Characteristic Checked Auxiliary Output, TTL DIGITAL DATA OUT, Level, on pageĂBĆ8. Equipment Required TTL Digital data out cable, 2 X13 header, probe and oscilloscope. Prerequisites The AWG2021 meets the prerequisites listed on page CĆ5. 1.
Appendix C: Performance Verification b. Hook up oscilloscope: Connect the oscilloscope probe to the CH1 vertical input. Connect the probe ground-clip to the GND pin of 2 × 13 header. c. Set oscilloscope controls: Vertical . . . . . . . . . . . . . . . . . . . . . . . . . Scale . . . . . . . . . . . . . . . . . . . . . . . . Input Impedance . . . . . . . . . . . . . . Horizontal Sweep . . . . . . . . . . . . . . . . . . . . . . . Trigger Mode . . . . . . . . . . . . . . . . . . . . . . .
Appendix C: Performance Verification × Figure CĆ23: Output Pins on the TTL Digital Data Out Cable 4. If Option 02 is installed, check the CH2 digital data output signals: a. Change connection: Change the connection for the TTL digital data out cable from CH1 DIGITAL DATA OUT connector to CH2 DIGITAL DATA OUT connector. b. Repeat the step2 and 3 to check the CH2 digital data output signals. 5.
Appendix C: Performance Verification Floating Point Processor Check (Option 09) This procedure checks the AWG2021 floating point processor. This check requires that the AWG2021 has Option 09 installed. Equipment Required Prerequisites 1. Check that floating point processor test in internal diagnostics passes: a. Run the AWG2021 internal diagnostics: Push the AWG2021 ON/STBY switch two times so that the AWG2021 runs the power-on diagnostics.
Appendix D: Sample Waveform Library Introduction The files and directories listed below are included in the route directory of the Sample Waveform Library Disk that comes with the instrument. All files are locked; this is indicated by an asterisk (*) before the file name. Representative Waveform Files AWG2021 User Manual There are 16 of these waveform files. If a waveform file (with the extender .WFM) has the same name as an equation file (with the extender .
Appendix D: Sample Waveform Library NTSC DIrectory Waveform Name File Name Page 16. Waveform for Magnetic Disk Readout Signal MDSK_RD.WFM DĆ18 17. Waveform for Magnetic Disk Writing Signal MDSK_WR.WFM DĆ19 Contains video signals. Waveform Name File Name 1. Color Bar (Composite) signal $CB1-2H.SEQ 2. Color Bar (Luminance) signal $CB1-(Y).SEQ 3. Color Bar (Chrominance) signal $CB1-(C).SEQ 4. Multiburst signal $M-BURST.SEQ 5. Modulated Ramp signal $RAMP.SEQ 6.
Appendix D: Sample Waveform Library Description of Representative Waveform Files Here we will describe the 17 representative waveform files. Some of the waveform files were obtained by creating an equation file in the equation editor and then compiling it to form a waveform file. Others were created in the waveform editor. To output a waveform file, select the file in the SETUP menu. Gaussian Pulse (GAUSS_P.WFM) Made with the equation editor.
Appendix D: Sample Waveform Library Constants k0 indicates the half width (W50) for the pulse; k1 indicates the peak location of the pulse. Description The waveform generated when the pulse width is taken to be tW50 and the peak location is taken to be 0 can be expressed as NJ ǒ Ǔ NjĂ SubstitutingĂ sĂ +Ă 2 Ǹ2Ă (2) Ă gives ( )Ă +Ă Ă (2)Ă @Ă 2 50 ǒ 2 50 Ǔ 2 ( )Ă +Ă Ă Ă 2 , Ă andĂ takingĂ theĂ FourierĂ transformĂ gives 2s ǒ Ǔ 2 2 ( w)Ă +Ă Ǹ2p sĂ @Ă Ă Ă w s .
Appendix D: Sample Waveform Library Lorentz Pulse (LORENTZ.WFM) Made with the equation editor. Figure DĆ2: Lorentz Pulse Formula and Waveform Constants k0 indicates the half width (W50) for the pulse; k1 indicates the peak location of the pulse. Description When the pulse width is taken to be tw50, the waveform can be expressed by the following formula: ( )Ă +Ă 1 ǒ 1Ă )Ă 2Ă Settings AWG2021 User Manual Ǔ 2 50 Waveform points: 256 Clock frequency: 100 MHz Output time: 2.
Appendix D: Sample Waveform Library Sampling Function SIN(X)/X Pulse (SINC.WFM) Made with the equation editor. Figure DĆ3: Sampling Function SIN(X)/X Pulse Formula and Waveform Constants k0 indicates the frequency of the sine wave; k1 indicates the peak location of the pulse. Description In general, this waveform is expressed by the following formula: ( )Ă Ă Ă (2p ) 2p This is the impulse response for the ideal low pass filter for the frequency bandwidth f.
Appendix D: Sample Waveform Library Squared Sine Pulse (SQU_SIN.WFM) Made with the equation editor. Figure DĆ4: Squared Sine Pulse Formula and Waveform AWG2021 User Manual Description The pulse width and peak location are set with range (). The value for x is a value between 0 and 1 for range (a,b).
Appendix D: Sample Waveform Library Double Exponential Pulse (D_EXP.WFM) This is the rising and falling exponential function pulse. Made with the equation editor.
Appendix D: Sample Waveform Library Nyquist Pulse (NYQUIST.WFM) Made with the equation editor. Figure DĆ6: Nyquist Pulse Formula and Waveform Constants k0 is the period of the digital data used in communication or recording. k1 is the pulse peak location. k2 is the excess bandwidth factor, and is a value between 0 to 1. Description This is the impulse response of a wave shaping Nyquist filter.
Appendix D: Sample Waveform Library Linear Frequency Sweep (LIN_SWP.WFM) Made with the equation editor.
Appendix D: Sample Waveform Library Log Frequency Sweep (LOG_SWP.WFM) Made with the equation editor.
Appendix D: Sample Waveform Library Amplitude Modulation (AM.WFM) Made with the equation editor. Figure DĆ9: Amplitude Modulation Formula and Waveform DĆ12 Constants k0 is the frequency of the modulating signal, k1 is the carrier frequency, and k2 is the modulation degree. Description This example shows a double sideband (DSB) amplitude modulated waveform with a modulation degree of 0.5. The modulating signal is a cosine wave.
Appendix D: Sample Waveform Library Frequency Modulation (FM.WFM) Made with the equation editor.
Appendix D: Sample Waveform Library Damped Sine Wave (DMP_SIN.WFM) Made with the equation editor. Figure DĆ11: Damped Sine Wave Formula and Waveform DĆ14 Constants k0 indicates the inductance (L), k1 indicates the capacitance (C), and k3 indicates the damping time constant. Description This is an attenuated amplitude waveform with a resonance frequency of 1 MHz (L=2 mH, C=12.66 pF) and a damping time constant of 6 ms.
Appendix D: Sample Waveform Library Pulse Width Modulation (PWM.WFM) Made with the waveform editor.
Appendix D: Sample Waveform Library PseudoĆRandom Pulse (PRBS_15.WFM) Made with the waveform editor. Figure DĆ13: PseudoĆRandom Pulse Waveform Description An MĆseries pseudoĆrandom signal is created using the waveform editor's timing display shift register generator function. ąRegister length = 15 ąPoints/step = 1 ąThe encoding is NRZ.
Appendix D: Sample Waveform Library π/4 DQPSK I Axis Signal (DQPSKI.WFM) The base band I-axis output for a digital cellular car telephone system is created on the Tektronix digital signal processing work system (DSPW). Bit rate 42 Kbps Point number 32 Kwords Clock frequency 21 kHz Figure DĆ14: π/4 DQPSK I Axis Signal π/4 DQPSK Q Axis Signal (DQPSKQ.WFM) The base band Q-axis output for a digital cellular car telephone system is created on the Tektronix digital signal processing work system (DSPW).
Appendix D: Sample Waveform Library Waveform for Magnetic Disk Readout Signal (MDSK_RD.WFM) Made with the convolution waveform editor (Option 09). Figure DĆ16: Waveform for Magnetic Disk Readout Signal Description ! # $" # & % ! # ! # # % $# & % ! ! # $ # " " # & % ! ! ! "# ! # &! ## & # MDSK_WR.WFM " " & % ! ! # ""$ $"" $ " GAUSS_P.
Appendix D: Sample Waveform Library Waveform for Magnetic Disk Writing Signal (MDSK_WR.WFM) Made with the waveform editor. Figure DĆ17: Waveform for Magnetic Disk Readout Signal Description Created a worstĆcase pattern with NRZI modulation using the bit set function of the waveform editor timing display. ą*WorstĆcase pattern ( 0101010110101010 ) ąPattern length = 32 ąPoints/step = 8 ąThe encoding is NRZI A signal with the same pattern is set for the MARKER1 as well.
Appendix D: Sample Waveform Library Video Signals in the NTSC Directory NTSC color bar signals, NTSC Y-C separate signals and various kinds of NTSC signals are stored in the NTSC directory. These are NTSC video signals made up of 1 – 4 color fields and 1050 lines (525 x 2). The clock frequency is 16 times the sub-carrier frequency; a waveform is created on each line and the compiled waveforms are assembled using the sequence editor. The settings for the signals are described below.
Appendix D: Sample Waveform Library Figure DĆ18: Color Bar (Composite) Signal ($CB1-2H.SEQ) Figure D-19 shows the NTSC Y-C separate signal. Y (luminance signal) and C (chroma signal) have been created separately, so if these are output separately to channel 1 and channel 2 they will become Y-C separate signals; when these are combined and output, they become a composite signal. A 50 W/75 W conversion adaptor is required for 75 W output.
Appendix D: Sample Waveform Library Luminance Signal Chroma Signal Figure DĆ19: NTSC YĆC separate signals Figure DĆ20: Multiburst Signal ($M-BURST.
Appendix D: Sample Waveform Library Figure DĆ21: Modulated Ramp Signal ($RAMP.SEQ) Figure DĆ22: Sweep Signal ($SWEEP.
Appendix D: Sample Waveform Library Figure DĆ23: SMPTE Color Bar Signal ($SMPTE.SEQ) Figure DĆ24: IYQB Signal ($IYQB.
Appendix D: Sample Waveform Library Figure DĆ25: Reversed Blue Bar signal ($RBLU.SEQ) Figure D-26 shows that the Color Bar signal, IYQB signal and Reversed Blue Bar signal are sequenced at the rate of 2:3:4 respectively. Figure DĆ26: Color Bar + IYQB signal + Reversed Blue Bar ($MIX.
Appendix D: Sample Waveform Library AWG2021 User Manual
Appendix E: Functional Operation Summary Introduction This summary shows the AWG2021 functional block diagrams, explains each block, and gives some operating precautions which are of practical value in understanding the fundamental operating concepts of the instrument. For convenience, some functional block diagrams show the configuration with a second channel installed (Option 02). For blocks in which CH1 and CH2 operate the same, only CH1 is explained.
Appendix E: Functional Operation Summary Block Diagram Figure E-1 is a block diagram of the circuits from the clock oscillator to the digital-to-analog converter (DAC). Figure E-2 shows the block diagram continuing where Figure E-1 left off and goes until the output. The rest of this summary explains the individual blocks.
Appendix E: Functional Operation Summary ! ! " ÎÎ ! # Î Î Î Î ÎÎ " " Î ÎÎ Î ÎÎ Î Î Î ÎÎ ÎÎ ÎÎ ÎÎ ÎÎ ÎÎÎ Î Î Î Î Î Î Î Î ! ! Î Î Î ! ! ! Î Î Î " " ÎÎ ÎÎ ÎÎ ÎÎ Î Î ÎÎÎ ÎÎ ÎÎ ! Î ÎÎÎ Î ÎÎ Î Î ! ! Figure EĆ2: Block Diagram (2) AWG2021 User Manual EĆ3
Appendix E: Functional Operation Summary Clock Oscillator The oscillator for internal clock use is normally a PLL (phase lock loop) type. It uses a liquid crystal oscillator that provides a stable 12.8 MHz signal. The clock oscillates from 250 MHz to 125 MHz. The minimum frequency resolution is 5 kHz and the frequency can be set with 4-digit precision. Frequencies under 125 MHz can be obtained by changing the frequency division of the clock divider.
Appendix E: Functional Operation Summary AWG2021 Parallel Operation. When more than two channel outputs are needed, connect as shown below. Simple parallel operation. The SYNC output of the master AWG2021 is connected to the TRIGGER INPUT of the slave AWG2021. Figure E-4 shows a connection example.
Appendix E: Functional Operation Summary ÎÎÎÎÎ ÎÎÎÎ ÎÎÎÎÎ ÎÎÎÎ ÎÎÎÎÎ ÎÎÎÎ ÎÎÎÎÎ ÎÎÎÎ ÎÎ ÎÎ ÎÎÎÎÎ ÎÎÎÎÎ ÎÎÎÎÎ ÎÎÎÎÎ Î Î Î Î Î Figure EĆ5: Connection Example 2 When there is only one trigger source output, connect to both AWG2021 instruments using the same minimum possible length 50 W cable and a T adapter.
Appendix E: Functional Operation Summary ÎÎÎÎÎ ÎÎÎÎÎ ÎÎ ÎÎÎÎÎ ÎÎÎÎÎ ÎÎÎÎÎ ÎÎÎÎÎ ÎÎÎÎ ÎÎÎÎÎ ÎÎÎÎ ÎÎÎÎÎ ÎÎÎÎ ÎÎÎÎÎ ÎÎÎÎ ÎÎÎÎÎ ÎÎ ÎÎ ÎÎ ÎÎ ÎÎ Figure EĆ6: Connection Example 3 . Since a 1-meter 50 W cable gives a delay of about 5 ns, make the cable connecting the clock output and clock input as short as possible.
Appendix E: Functional Operation Summary Trigger Input, SYNC Output, and Waveform Timing. Figure E-7 shows the relationship between trigger input, SYNC output, and waveform timing. Trigger Input (Slope:Positive) 100 ns max SYNC Output (Start) Waveform Output About 10 ns (This delay changes if a filter is inserted.
Appendix E: Functional Operation Summary Sequence Control This block comprises the sequence memory that stores the contents of sequence control, the counters that read out the contents of that memory, and output the actual waveform memory addresses. Table EĆ1: Sequence File (XXX.SEQ) File Name Repetition Count For a sequence file, such as that shown in Table E-1, here is what is actually stored in sequence memory. AAA.
Appendix E: Functional Operation Summary Sequence Memory AAA WFM Address Address Counter AAA WFM Data Length Looping Control Value Sequence Memory Address Counter Waveform Memory Length Counter Looping Counter Clock (1/8) Figure EĆ9: Relationship Between Sequence Memory and Waveform Memory Waveform Memory The waveform memory comprises sixteen 32K 8 SRAM chips for 256K words of 16-bit word memory.
Appendix E: Functional Operation Summary ! ! ! ! ! Figure EĆ10: Waveform Memory Configuration The waveform data length can be any multiple of 8 points, from a minimum of 64 points to a maximum of 256K points. The total number of waveform data points that can be used in a single sequence file is 256K. Data Length.
Appendix E: Functional Operation Summary Figure EĆ11: Relationship Between Triangular Wave Resolution and Number of Data Points For a triangular wave, extra waveform points beyond 8000 are meaningless. This applies not only to triangular waves but to smooth waveforms, in general. In normal use, this level of precision is rarely required. When it is not, the number of waveform points may be reduced.
Appendix E: Functional Operation Summary In Cont mode, the original data length is multiplied to make it a multiple of 8. For example, if the original waveform has 60 points, two of them are strung together to make a waveform with 120 points. However, in this case the SYNC output is only generated for every other waveform. Figure E-12 shows the relationship between the waveform points and SYNC output in Cont mode.
Appendix E: Functional Operation Summary Table EĆ2: Output Signal Amplitude - External Modulation External Modulation Signal Output Signal Amplitude With ±1 V input, 100% amplitude modulation is possible. Figure E-13 shows 100% modulation. Figure EĆ13: 100% Amplitude Modulation Internal AM Mode. This mode can be used when the CH2 output Option 02 is installed. This mode amplitude modulates the CH1 signal with the CH2 signal.
Appendix E: Functional Operation Summary An example is when the CH1 signal is amplitude modulated with the CH2 signal. If CH2 is set to an amplitude of 5 V and an offset of 2.5 V, a 100% modulated waveform is obtained. Internal AM mode is useful for such tasks as varying the amplitude of a certain part of a waveform in real time. Due to the restrictions created by the multiplier bandwidth and the signal delay due to the amplifiers, filter, etc.
Appendix E: Functional Operation Summary avoid overshooting and ringing. Figure E-14 shows representative characteristics. 0 10 20 30 40 50 60 0 1 2 3 4 5 6 7 8 9 10 Figure EĆ14: Representative Filter Characteristics These filters can be used to eliminate extraneous components of the waveform and to reduce the foldback component when there are a small number of waveform points.
Appendix E: Functional Operation Summary Table EĆ3: Filter Timer Delay Relative to SYNC Signals (Cont.) Filter Delay Figure E-15 shows the time difference (t) between signals and SYNC signals. Figure EĆ15: Time Difference Between Signals and SYNC Signals Time Difference from Markers.
Appendix E: Functional Operation Summary Figure EĆ16: Attenuator Configuration These attenuators and the above x5 amp are selected automatically by setting the output voltage. Offset This block gives an offset voltage to the output. This circuit is a power source that can both push out and pull in. The offset voltage is calculated for output terminated with exactly 50 W. Since this circuit has a capacity of ±100 mA, an offset of up to ±100 mA 25 W (50 W || 50 W) = ±2.
Appendix F: Miscellaneous General Description This appendix covers the following items. Horizontal axis scaling Sampling theorem Differentiation Integration Random (rnd) function Pattern code Logical operation Fast Fourier Transforms (FFT) Repackaging for shipment Factory settings Horizontal Axis Scaling The horizontal axis scaling uses linear interpolation.
Appendix F: Miscellaneous Here is the equation for linear interpolation. f (x) + x x–x i –x i {f (x i)1)–f (x i)} ) f (x i) i)1 Here, i is the waveform point number; i takes integer values i = 1, 2, ..., n. . The number of points can be increased or decreased, but the waveform may lose its characteristics when the number of points are decreased. Example 1: 5 points padded to 9 points.
Appendix F: Miscellaneous Sampling Theorem When the signal is continuous and the highest frequency component of the signal is f0, sampling with Te1/2f0 loses none of the data contained in the signal. T is the sampling interval. This theorem is well known as the sampling theorem. If data is created to meet this theorem, the necessary signal can be obtained.
Appendix F: Miscellaneous n n Figure FĆ4: Equation Differentiation The values at the first and last points are obtained not from the center deviation, but from the following equations: First point fȀ(x 1) [ n{–3f (x 1) ) 4f (x 2)–f (x 3)} 2 Last point fȀ(x n) [ FĆ4 n{f (x n–2)–4f (x n–1) ) 3f (x n)} 2 AWG2021 User Manual
Appendix F: Miscellaneous Integration The integ() function integrates numerically based on a trapezoidal formula. The trapezoidal formula is expressed with the following equation. ŕ f (x)dx [ ȍ f (x n i–1 i+1 ) ) f (x i) @ x 2 + x {f (x 1) ) 2f (x 2) ) 2f (x 3) ) AAA ) 2f (x n–1) ) f (x n)} 2 Here, n is the number of waveform points and i is an integer in the range, i = 1, 2, ..., n.
Appendix F: Miscellaneous Random (rnd) Function A random number generation algorithm uses an uniform distribution random generation routine and the central-limit theorem to derive Gaussian distribution random numbers. Central-limit theorem: when the independent random variables X1, X2..., and Xn conform to an identical random distribution, the mean and variance of x = (X1 + X2 +...
Appendix F: Miscellaneous Pattern Codes On the AWG2021, it is possible to select the coding system used when pattern strings are output. If the code will be affected by the immediately preceding data, the data item just before the first item of data will be calculated as 0. The following tables show the coding systems.
Appendix F: Miscellaneous MFM (Modified FM): Each pattern is made up of 2 data items. In the table below, data in parentheses () indicates the immediately preceding data of the data for which coding is being attempted. Here the output data is inverted every time when 1 appears in the codes.
Appendix F: Miscellaneous f/2f: Each pattern is made up of 2 data items. In the table below, data in parentheses () indicates the immediately preceding data of the data for which coding is being attempted. Pattern Output Data Example 1-7 RLL (Run-length Limited Codes): 2-item patterns are made up of 3 data items, and 4-item patterns are made up of 6 data items.
Appendix F: Miscellaneous 2-7 RLL: 2-item patterns are made up of 4 data items, 3-items pattern are made up of 6 data items and 4-item patterns are made up of 8 data items. Here the output data is inverted every time when 1 appears in the codes.
Appendix F: Miscellaneous NRZ1 Initial Src Initial Code Out[1/0] 0 0 Invert/Keep Source Data Pattern Converted Code RZ Initial Src Initial Code Out[1/0] 0 0 High/Low Source Data Pattern Converted Code BIPHASE Initial Src Initial Code Out[1/0] AWG2021 User Manual 0 0 High/Low Source Data Pattern Converted Code FĆ11
Appendix F: Miscellaneous MFM Initial Src Initial Code Out[1/0] 0 0 Invert/Keep Source Data Pattern Converted Code f/2f Initial Src Initial Code Out[1/0] 0 0 Invert/Keep Source Data Pattern Converted Code 1-7 RLL Initial Src Initial Code Out[1/0] FĆ12 0 0 Invert/Keep Source Data Pattern Converted Code AWG2021 User Manual
Appendix F: Miscellaneous 2-7 RLL Initial Src Initial Code Out[1/0] 0 0 Invert/Keep Source Data Pattern Converted Code Logical Operation In the waveform editor timing display, it is possible to perform logical operations for data on different data lines. The following logical tables and timing charts show examples of each type of operations.
Appendix F: Miscellaneous NAND A B A*B A B A+B OR FĆ14 AWG2021 User Manual
Appendix F: Miscellaneous NOR A B A+B A B A B EX-OR ⊕ AWG2021 User Manual FĆ15
Appendix F: Miscellaneous EX-NOR A B A B ⊕ FFT (Fast Fourier Transforms) FFT is an algorithm for fast calculation of discrete Fourier transform. FFT transforms the time axis signal onto the frequency axis. FFT can also provide the frequency component magnitudes and phases. With the FFT editor, you can use inverse FFT (IFFT) to generate the real time data from the frequency component magnitudes and phases.
Appendix F: Miscellaneous maximum permitted frequency is called the Nyquist frequency and is 1/2 the sampling rate. If the signal has frequency components above the Nyquist frequency, they appear on this limited discrete frequency axis too. They appear as no different than noise aliased from the Nyquist frequency. For example, if there is a signal 5 MHz above the Nyquist frequency, it appears as if it is 5 MHz below the Nyquist frequency.
Appendix F: Miscellaneous π π _ Figure FĆ6: Phase and Delay FFT Window Functions FFT calculates with limited data blocks. Also, since FFT calculations assume that the sampled data blocks are repeated infinitely, frequency error arises from non-continuities generated at the edges of data blocks. This frequency error is called leakage error. The leakage error depends on the FFT window function selected.
Appendix F: Miscellaneous ⇒ ⇒ Figure FĆ7: Concept of Convolution Figures F-8 through F-13 show the FFT window functions prepared for this instrument and their characteristics.
Appendix F: Miscellaneous Square Wave Window. The square wave window does not taper the time region data. The filter shape in the frequency region is sin(x)/x. The square wave window is appropriate for observing the frequency spectrum of non-repetitive signals. The square wave window is also used for observing frequency components near DC.
Appendix F: Miscellaneous Hamming Window. The hamming window is similar to a hanning window, but it suppresses more the transmissivity for the side lobes next to the transmitting bandwidth. Compared to FFT processing using a hanning window, the degree of separation between two frequencies is greater, as can be seen in Figure F-10. This window is particularly effective for separating close frequencies.
Appendix F: Miscellaneous Blackman Window. The Blackman window suppresses the side lobe magnitudes in the frequency region lower than the hamming window does and suppresses leakage even farther. However, it has inferior frequency resolution. # ! ! # " ! !" Figure FĆ12: Blackman Window and Frequency Characteristic Triangle Wave Window.
Appendix F: Miscellaneous Repackaging for Shipment If this instrument is shipped by commercial transportation, use the original packaging material. Unpack the instrument carefully from the shipping container to save the carton and packaging material for this purpose. If the original packaging is unfit for use or is not available, repackage the instrument as follows: 1.
Appendix F: Miscellaneous Factory Settings When Reset to Factory is selected from the UTILITY Misc menu, this instrument’s parameters are reset to the values they had at the factory. Table F-1 lists these factory settings. Table FĆ1: Factory Settings Setup Menu Clock Frequency 100.00 MHz Clock Source Internal CH1 Operation Normal Filter Through Amplitude 1.000 V Offset 0.000 V Display Graphics MODE Menu Operating mode Cont Triggered Slope Positive Gated Polarity Positive Level 1.
Appendix F: Miscellaneous Table FĆ1: Factory Settings (Cont.) FG Menu The following UTILITY menu settings are not affected by Reset to Factory.
Appendix F: Miscellaneous AWG2021 User Manual
Appendix G: Inspection and Cleaning Inspect and clean the instrument as often as operating conditions require. The collection of dirt can cause instrument overheating and breakdown. Dirt acts as an insulating blanket, preventing efficient heat dissipation. Dirt also provides an electrical conduction path that can cause an instrument failure, especially under high-humidity conditions. To prevent damage avoid the use of chemical cleaning agents that might damage the plastics used in this instrument.
Appendix G: Inspection and Cleaning Cleaning Procedure Ċ Exterior To clean the instrument exterior, do the following: To avoid injury or death, unplug the power cord from line voltage before cleaning the instrument. To avoid getting moisture inside the instrument during external cleaning, use only enough liquid to dampen the cloth or applicator. 1. Remove loose dust on the outside of the instrument with a lint-free cloth. 2.
