AFG1022 Arbitrary/Function Generator Quick Start User Manual *P077106200* 077-1062-00
AFG1022 Arbitrary/Function Generator Quick Start User Manual www.tektronix.
Copyright © Tektronix. All rights reserved. Licensed software products are owned by Tektronix or its subsidiaries or suppliers, and are protected by national copyright laws and international treaty provisions. Tektronix products are covered by U.S. and foreign patents, issued and pending. Information in this publication supersedes that in all previously published material. Specifications and price change privileges reserved. TEKTRONIX and TEK are registered trademarks of Tektronix, Inc.
Warranty Tektronix warrants that the product will be free from defects in materials and workmanship for a period of three (3) years from the date of original purchase from an authorized Tektronix distributor. If the 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 Preface ....................................................................................................................................................... iii Where to find more information.......................................................................................................... iii Conventions used in this manual ......................................................................................................... iii Service offerings .............................
Table of contents Sweep a waveform ............................................................................................................................. 33 Modulate a waveform......................................................................................................................... 36 Generate a burst waveform................................................................................................................. 41 Copy channel setting .........................................
Preface This manual describes the installation and operation of the Tektronix AFG1022 Arbitrary/Function Generator along with basic operations and concepts. Where to find more information The following table lists related documentation available for your instrument. The documentation is available on the Product Documentation CD and on the Tektronix Web site (www.tektronix.com/manuals).
Preface Service offerings Tektronix provides service to cover repair under warranty and other services that are designed to meet your specific service needs. Tektronix warrants this product as describe in the warranty statement at the front of this manual. Tektronix technicians provide warranty service at most Tektronix service locations worldwide. Please contact your local Tektronix representative for more information on any repair or adjustment service.
Getting started General features The AFG1022 Arbitrary/Function Generator offers the functionality of three generators in one, and a frequency counter: 25 MHz Function Generator 12.5 MHz Pulse Generator 14-bit Arbitrary Waveform Generator 200 MHz Frequency Counter The following table describes some of the general features of your instrument. Feature Description Channel 2 Sine 25 MHz Pulse 12.
Getting started Standard accessories Unpack the instrument and check that you received all items listed as Standard Accessories. Check the Tektronix Web site (www.tektronix.com) for the most current information.
Getting started Operating requirements The following information and figure describe temperature, clearance, and power supply operating requirements of the instrument. 306.36 mm (12.06 in) 229.16 mm (9.02 in) 111.16 mm (4.38 in) Figure 1: Instrument dimensions Environmental requirements Clearance. When placing the instrument on a cart or bench, observing the following clearance requirements: Sides: 50 mm (2 in) Rear: 50 mm (2 in) Temperature.
Getting started Power the instrument on and off The following procedures show you how to apply power to the instrument and turn it on and off. Power on To turn apply power to the instrument and turn it on, do the following: 1. Switch the line selector to the correct position. 2. Peel off the label on the power receptacle and if needed, replace the fuse according to the line setting (refer to Appendix A for the steps of fuse replacement) before inserting the AC power cord.
Getting started Change instrument settings at power-on The default settings are restored when you power on the instrument. You can change the power-on settings to the last powered-off settings from the Utility menu using the following procedure. 1. Push the front-panel Utility button. 2. Press System. 3. Press Power On to select from the following the power on settings. Default restores the default settings when the instrument is powered on.
Getting started Select a local language When you power on the instrument for the first time, English is selected by default. After you select a desired language, all the bezel menus, pop-up messages, and built-in help are displayed in the specified language. 1. 2. 3. Push the front-panel Utility button. Press System. Press Language to select the desired language. You can select from English, and Simplified Chinese.
Getting started Protect your instrument from misuse Check input and output connectors When connecting a cable, be sure to distinguish the input connector from the output connectors to avoid making wrong connection. 1. Locate the channel output on the front panel. Out1 means CH1 output and Out2 means CH2 output. 2. Locate the Ref Clk Out on the rear panel. 3. Locate the Ref Clk/Counter In, Ext Trig/Burst/Fsk In and Ext Mod In connectors on the rear panel. CAUTION.
Getting started General care Protect the instrument from adverse weather conditions. The instrument is not waterproof. Do not store or leave the instrument where the display will be exposed to direct sunlight for long periods of time. CAUTION. To avoid damage to the instrument, do not expose it to sprays, liquids, or solvents. Preventive maintenance Preventive maintenance mainly consists of periodic cleaning. Periodic cleaning reduces instrument breakdown and increases reliability.
Getting started Update your instrument firmware You can use the front-panel USB connector to update your instrument firmware using a USB memory device. CAUTION. Updating your instrument firmware is a sensitive operation which might damage your instrument if you do not follow all instructions carefully. To prevent damage to the instrument, do not remove the USB memory device or power off the instrument during the update process. NOTE: The screen images of the following procedure are provided as an example.
Getting started 4. Press System. 5. Press NextPage. 6. Press Update firmware to enter file system. NOTE: If the USB memory device is not inserted, the Update firmware is disabled. 7. Use the general purpose knob to select USBDEVICE, and then press Enter to enter USBDEVICE to browse files in the USB memory. 8. Select the downloaded firmware file by rotating the general purpose knob. Then press Execute to update firmware. NOTE: The firmware file name is as follows: tekafgtb-Vx.x.x.tfb. .
Getting started 9. The instrument displays a message telling you not to remove the USB device or power off the instrument until the update process is complete. The progress bar of the screen indicates the update process is in progress. NOTE: A firmware update usually takes approximately under a minute. Do not remove the USB memory during the update process. NOTE: If you accidentally removed the USB memory during the update process, do not power off the instrument.
Getting started Equivalent output circuits The following illustrations show the equivalent output circuits: Legend for the following images: Output signals do not exceed ±10 V when the >50 Ω load impedance is used. A change to the load impedance (L) will affect the output window (maximum and minimum levels) for a sine waveform as follows.
Instrument front panel, interface, and rear panel Instrument front panel, interface, and rear panel Front panel overview The front panel is divided into easy-to-use functional areas. This section provides you with a quick overview of the front panel controls and the screen interface.
Instrument front panel, interface, and rear panel Parts of the screen interface Item Description 1 Bezel menu: When you push a front panel button, the instrument displays the corresponding menu on the right side of the screen. The menu shows the options that are available when you press the unlabeled bezel buttons directly to the right of the screen. (Some documentation may also refer to the bezel buttons as option buttons, side-menu buttons, or soft keypad.
Instrument front panel, interface, and rear panel Default setup When you want to restore the instrument settings to the default values, use the front-panel Utility button as follows: 1. Push the front-panel Utility button. 2. Press System. 3. Press Set to Default. 4. Select one of the following: S e l e c t to recall the default settings; the instrument will display a 1 kHz frequency, 1 Vp-p amplitude sine waveform as the default setup. Cancel to cancel the recall and return to the previous menu.
Instrument front panel, interface, and rear panel Default settings Default settings Menu/System Default setting Output configuration (available in ch1 and ch2) Function Sine Frequency 1.000 000 000 kHz Amplitude 1.000 Vp-p Offset 0 mV Symmetry (ramp) 50.00% Duty (Pulse) 50.00% Output Units Vp-p Output impedance 50 Ω Sweep (only available in ch1) Sweep start frequency 100.000 Hz Sweep stop frequency 1.
Instrument front panel, interface, and rear panel Select waveform The instrument can provide five standard waveforms (Sine, Square, Ramp, Pulse and Noise). The instrument can also provide user-defined arbitrary waveforms. You can create, edit, and save your custom waveforms. You can also create modulated waveforms using the Mod panel button and then Mod bezel button menus. The following table shows the combination of modulation type and the shape of the output waveform.
Instrument front panel, interface, and rear panel Other available waveforms 18 The following are examples of some other waveform types available in the Built-in Waveform menu.
Instrument front panel, interface, and rear panel Select run mode Push the Mod panel button, and then press one of the four Run Mode bezel buttons to select the instrument signal output method. Modulation, sweeping, and burst modes are only available in Ch1. 1. The default Run Mode is Continuous. 2. To select a modulated waveform, press Mod. 3. To select a sweep 4. AFG1022 Quick Start User Manual waveform, press Sweep. See page 33 for details on sweeping waveforms.
Instrument front panel, interface, and rear panel Adjust waveform parameters When you turn on your instrument, the default output signal is a 1 kHz sine waveform with an amplitude of 1 Vp-p. In the following example, you can change the frequency and amplitude of the original output signal. 1. To change frequency, press Freq/Period. Press it again to choose Period. The parameter which is chosen will be lighted with white background.
Instrument front panel, interface, and rear panel Channel Select 1. Channel output On/Off 1. 2. Display Both Channels Push the front-panel Ch1/2 button to control the screen display. You can toggle between the two channels. To enable CH1 signal output, push the front-panel On/Off with yellow color. To enable CH2 signal output, push the front-panel On/Off with blue color. An LED turns on when the corresponding channel button is in the On state. You can configure the signal with the outputs off.
Instrument front panel, interface, and rear panel Rear panel The following illustration shows the rear panel connectors for the instrument. 1 2 8 7 6 5 4 3 Item Description 1 Power input: This is where you attached an appropriate power cord to supply power to the instrument. 2 Fuse: Use the specified fuse according to the voltage scale. The rating of replaceable fuse: Voltage 100 - 120 V 220 - 240 V Fuse 250 V, F4AL 250 V, F2AL 3 Power line selector: Switch between 110 V / 220 V.
Operating basics Quick tutorial: How to select a waveform and adjust parameters If you are a beginning user, follow the steps described here to get acquainted with how to select a waveform and adjust waveform parameters. 1. Push the power button to turn on the instrument. 2. Connect the Channel Output of the instrument to an oscilloscope input with a BNC cable. 3. Select a waveform. 4. Enable the signal output. 5. Observe the waveform displayed on the oscilloscope screen. 6.
Operating basics Quick tutorial: How to generate a sine waveform If you are a beginning user, follow the steps described here to learn how to generate a continuous sine waveform. 1. Connect the power cord, and then push the front-panel power button to turn on the instrument. 2. Connect a BNC cable from the Channel Output of the arbitrary/function generator to an oscilloscope input connector. 3. 4. 5. 6. 24 Push the front-panel Sine button. The default run mode is Continuous after power- on.
Operating basics Quick tutorial: Instrument help system The instrument help system allows you to access information about specific menu items and instrument functions when you need help. Access and navigate this help system using front panel buttons and knob; and then follow the on-screen instructions as they appear. How to access the instrument help system You can follow the steps described here to access the instrument help system. 1. 2. 3. 4. 5. 6.
Operating basics Operating Basics Generate a pulse waveform 1. Push the front-panel Pulse button to display the Pulse screen. NOTE: All of the following parameters can be adjusted using the numeric keypad or the general purpose knob. 2. Press Wi d t h /DutyCyc and adjust the parameter as needed. Adjust the other parameters in the same way.
Operating basics Generate a built-in waveform The instrument can output a built-in waveform that is stored in the internal memory. 1. Push the front-panel Arb button. 2. Adjust the parameters of arbitrary waveforms according 3. 4. to How to generate sine waveform (see page 24). Press Built-in. The built-in waveform menu is displayed. Press Common, Maths, Window or Others to enter built-in waveform detail list. You can browse 45 kinds of built-in waveforms saved in the internal memory.
Operating basics Name Maths ExpRise ExpDecay Sinc Tan Cotan SquareRoot X^2 HaverSine Lorentz Ln(x) X^3 CauchyDistr BesselJ BesselY ErrorFunc Airy Windows Rectangle Gauss Hamming Hanning Bartlett Blackman Laylight Triangle Others DC Heart Round Chirp Rhombus Cardiac 28 Explanation Exponential rise function Exponential fall function Sinc function Tangent Cotangent Square root Square function HaverSine function Lorentz function Natural logarithm function Cubic function Cauchy distribution BesselI function B
Operating basics Create/Save a user-defined waveform You can create a user-defined waveform, and save it in the internal memory or in an external USB memory device. 1. Push the Arb panel button. 2. Press Editable. 3. Press New to enter arb waveform edit menu. 4. Press Points to set the number of waveform points to be edited. Use the general purpose knob to adjust parameters directly or use the numeric keypad to adjust and then choose the proper unit. X1, X1000.
Operating basics 10. If you want to save the waveform to internal memory, select INTER, press Enter. Use the front panel general purpose knob to select a file from USER0 through USER255. Press Save. NOTE: The file size is displayed on the right side. 0B indicates the file is empty. When creating a new waveform, the waveform data is in Edit Memory. If you do not save it, the data still exists in the Edit Memory.
Operating basics Recall a user-defined waveform You can recall an user-defined waveform that is stored in the internal memory or a USB memory. 1. Push the Arb panel button. 2. Press Editable. 3. Press File browse to enter the file system. 4. To recall a waveform in the internal memory, select INTER, and then press Enter. Use the front panel general purpose knob to select a file from Edit Memory or User 0 through User 255. Press CallOut. If a prompt "File read successful.
Operating basics Generate noise 1. Push the front-panel Noise waveform button. 2. Use the general purpose knob or the numeric keypad to adjust Ampl, High, Offset and Low. NOTE: You cannot modulate, sweep, or burst noise waveform. Generate DC 1. Push the front-panel Arb button. 2. Press Built-in. 3. Press Others. 4. Select DC, press Select to output a DC waveform. NOTE: You cannot modulate, sweep, or burst a DC waveform.
Operating basics Sweep a waveform The Sweep outputs a waveform with the output signal frequency varying linearly or logarithmically.
Operating basics To set sweep parameters, do the following: 1. 2. Select a waveform among sine, square, or ramp, and then push the front-panel Mod button. Press Sweep to enter sweep menu. NOTE: You can only choose sine, square, or ramp as a carrier waveform. 3. 4. 5. 6. 7. 8. Press Sweep Time to set the time between the start and stop frequency. Press Linear/Log to select the sweep type. Press StartFreq/ CtrFreq.
Operating basics Sweep frequency facts If a start frequency is lower than a stop frequency, the instrument sweeps from the low frequency to the high frequency. If a start frequency is higher than a stop frequency, the instrument sweeps from the high frequency to the low frequency. Once the sweep is selected, the frequency is swept from the sweep start to the sweep stop frequencies.
Operating basics Modulate a waveform To output an AM waveform 1. 2. Select a waveform and then push the front-panel Mod button. Press Mod. In this example, use the sine waveform as an output waveform (carrier waveform). NOTE: You can only choose sine, square, ramp, or arb as a carrier waveform. 3. Press Type to display the modulation selection menu. Select AM as the modulation type. 36 4. Press Source to select Internal or External.
Operating basics To output an FM waveform 1. 2. Select a waveform and then push the front-panel Mod button. Press Mod. In this example, use the sine waveform as an output waveform (carrier waveform). NOTE: You can only choose sine, square, ramp, or arb as a carrier waveform. 3. Press Type to display the modulation selection menu. Select FM as the modulation type. 4. Press Source to select Internal or External.
Operating basics To output an PM waveform 1. 2. Select a waveform and then push the front-panel Mod button. Press Mod. In this example, use the sine waveform as an output waveform (carrier waveform). NOTE: You can only choose sine, square, ramp, or arb as a carrier waveform. 3. Press Type to display the modulation selection menu. Select PM as the modulation type. 38 4. Press Source to select Internal or External.
Operating basics To output an FSK waveform Frequency Shift Keying modulation is a modulation technique that shifts the output signal frequency between two frequencies: the carrier frequency and Hop frequency. The Frequency of the Output Frequency switch between the carrier waveform frequency and the Hop frequency is called the FSK rate.
Operating basics Modulation waveform facts and formulas You can output frequency modulation or phase modulation waveforms in the same way. You can select an internal or external signal as an AM source. You can select a modulation shape from the internal memory or USB memory. You can only select sine, square, ramp, or arb as a carrier waveform.
Operating basics Generate a burst waveform The instrument can output a burst using standard waveforms such as sine, square, ramp, and pulse, or arbitrary waveforms. The instrument allows you to use the following two types of burst mode: Triggered burst mode. A specified number (burst count) of waveform cycles are output when the instrument receives a trigger input from the internal trigger source, an external trigger source, a remote command, or the Manual Trigger button. Gated burst mode.
Operating basics To generate a triggered burst waveform Burst function is only available on CH1. Burst function generates versatile waveforms in burst. A burst can last for certain times of waveform cycle (Triggered Burst), or to be controlled by external gating signals (Gated Burst). Burst can be applied to sine, square, ramp, pulse, and arb waveforms (You can’t select noise). 1. 2. Select a waveform and then push the front-panel Mod button. Press Burst.
Operating basics 7. Press Trigger to select Internal, External or Manual. Internal means using the internal trigger source. External means using the Ext Trig/FSK/Burst connector on the rear panel to input the external triggered signal. Press Slope to switch between Positive and Negative. Manual means choosing manual trigger; in Triggered Burst mode, push the general purpose knob on the front panel to output a burst signal. To generate a gated burst waveform 1. 2.
Operating basics Copy channel setting The instrument can copy the parameters of one channel to the other. If frequency or amplitude of both channels are locked, when you change the parameter of either channel, the parameter of the other channel is set to the same value. 1. Push the Inter CH panel button to display the submenu. Press CH2 To CH1.to copy parameters of CH2 to CH1. 3. Press CH1 To CH2 to copy parameters of CH1 to CH2. 4. Press FreqLock to toggle between On and Off.
Operating basics USB memory A USB memory connector, located on the front panel of the instrument, allows you to perform the following tasks: Save user-defined waveforms to a USB memory device (See page 29, Create/Save a user-defined waveform.) or recall waveform from a USB memory device (See page 31, Recall a user-defined waveform.). Update your instrument firmware (See page 9, Update your instrument firmware.) CAUTION.
Operating basics Utility menu Push the front-panel Utility button to display the Utility menu. The Utility menu provides access to utilities used by the instrument such as system related menus, and local language preferences. 1. 2. 3. 4. 5. 6. 7. 8. 9. 46 Push the front-panel Utility button to display the Utility menu which has the following options. Display setup related menus, see step 6. Counter related menus, see step 10. Output setup related menus, see step 15.
Operating basics 10. Press Counter to display the Counter submenu. 11. 12. 13. 14. AFG1022 Quick Start User Manual Connect the signal to the connector [Ref Clk/Counter In] on the rear panel. Press Settings to display the submenu. Press Coupling to select AC or DC as coupling mode. Press Sens to select Low, Middle and High. For low amplitude signal, the “Middle” or “High” sensitivity should be used. For low frequency signal with high amplitude and slower rising edge, low sensitivity is a better choice.
Operating basics 15. Press Output Setup to set output load value. Press CH1Load or CH2Load to toggle 50 Ω and High Z. At 50 Ω status, use the general purpose knob to adjust the value on the current cursor and use to / move cursor. Use the numeric keypad to adjust the parameters and then choose proper unit. The load range is 1 Ω to 10 KΩ. NOTE: Please setup the correct load for right application. 16. Press System to display the submenu.
Appendix A: Line Fuse Replacement The line fuse is in the plastic fuse box below the power line input on the rear panel. WARNING. Disconnect the line cord at the rear panel and remove all test leads connected to the instrument before replacing the line fuse. Failure to do so could expose the operator to hazardous voltages that could result in personal injury or death. Use only the correct fuse type. Failure to do so could result in personal injury or instrument damage.
Index A F M Amplitude, To change the units, 20 Application examples Frequency modulation, 36 Arb button (front panel), 13 Recalling arbitrary waveforms, 31 Firmware updates, 9 Formulas modulation waveforms, 40 Frequency span sweep waveform, 33 Front panel, 13 Main display area screen interface, 14 Message display area screen interface, 14 Modify an arbitrary waveform, 29 Modulate a waveform, 36 Modulation waveform formulas, 40 B Beeper Utility menu, 46 Bezel menu screen interface, 14 Burst waveform ge
Index R Rear panel, 22 Recalling waveform data 31 Saving waveform data, 29 Run Mode, 19 To set up load impedance, 48 To select a local language, 6 To select a waveform, 17 To select Run Mode, 19 To sweep a waveform, 33 S U Save a waveform Save arbitrary waveform, 29 Recall arbitrary waveform, 31 Screen interface, 14 Screen saver Utility menu, 46 Selecting a local language, 6 Side-menu buttons, 14 Sin(x)/x standard waveform, 18 Soft keypad, 14 Standard accessories, 2 Standard waveforms, 17 Start frequen
