Technical Reference TDS 500D, TDS 600B & TDS 700D Digitizing Oscilloscopes Performance Verification and Specifications 071-0135-00
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. Printed in the U.S.A. Tektronix, Inc., P.O. Box 1000, Wilsonville, OR 97070–1000 TEKTRONIX and TEK are registered trademarks of Tektronix, Inc.
WARRANTY Tektronix warrants that this product will be free from defects in materials and workmanship for a period of three (3) years 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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix Contacting Tektronix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . x Performance Verification Procedures Performance Verification Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . 1–1 Input Channels vs.
Table of Contents List of Figures Figure 1–1: Map of display functions . . . . . . . . . . . . . . . . . . . . . . . . . . Figure 1–2: Verifying adjustments and signal-path compensation . . Figure 1–3: Universal test hookup for functional tests – TDS 600B shown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Figure 1–4: Measurement of DC offset accuracy at zero setting . . . . Figure 1–5: Initial test hookup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table of Contents Figure 1–33: Subsequent 60 Hz Rejection test hookup . . . . . . . . . . . . Figure 1–34: 60 Hz Rejection test result – TDS 684B shown . . . . . . . Figure 1–35: Line count accuracy test hookup . . . . . . . . . . . . . . . . . . . Figure 1–36: Line count accuracy test setup waveform – TDS 684B shown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Figure 1–37: Line count accuracy correct result waveform . . . . . . . .
Table of Contents List of Tables Table 1–1: Test equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Table 1–2: DC offset accuracy (zero setting) . . . . . . . . . . . . . . . . . . . . Table 1–3: DC Voltage measurement accuracy . . . . . . . . . . . . . . . . . . Table 1–4: Analog bandwidth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Table 1–5: Delay between channels worksheet . . . . . . . . . . . . . . . . . . Table 1–6: Trigger level accuracy readout . .
General Safety Summary Review the following safety precautions to avoid injury and prevent damage to this product or any products connected to it. To avoid potential hazards, use the product only as specified. Only qualified personnel should perform service procedures. While using this product, you may need to access other parts of the system. Read the General Safety Summary in other system manuals for warnings and cautions related to operating the system.
General Safety Summary Observe All Terminal Ratings To avoid fire or shock hazard, observe all ratings and markings on the product. Consult the product manual for further ratings information before making connections to the product. Product Damage Precautions Use Proper Power Source Do not operate this product from a power source that applies more than the voltage specified. Provide Proper Ventilation To prevent product overheating, provide proper ventilation.
General Safety Summary Symbols on the Product The following symbols may appear on the product: DANGER High Voltage Protective Ground (Earth) Terminal ATTENTION Refer to Manual Double Insulated Certifications and Compliances CSA Certified Power Cords CSA Certification includes the products and power cords appropriate for use in the North America power network. All other power cords supplied are approved for the country of use.
General Safety Summary viii TDS 500D, TDS 600B & TDS 700D Performance Verification and Specifications
Preface This is the Performance Verification and Specifications for the TDS 500D, TDS 600B, and TDS 700D Oscilloscopes. It contains procedures suitable for determining if each instrument functions, was adjusted properly, and meets the performance characteristics as warranted.
Preface Contacting Tektronix Product Support For application-oriented questions about a Tektronix measurement product, call toll free in North America: 1-800-TEK-WIDE (1-800-835-9433 ext. 2400) 6:00 a.m. – 5:00 p.m. Pacific time Or, contact us by e-mail: tm_app_supp@tek.com For product support outside of North America, contact your local Tektronix distributor or sales office. Service Support Contact your local Tektronix distributor or sales office.
Performance Verification Procedures
Performance Verification Procedures Two types of Performance Verification procedures can be performed on this product: Brief Procedures and Performance Tests. You may not need to perform all of these procedures, depending on what you want to accomplish. H To rapidly confirm that the oscilloscope functions and was adjusted properly, just do the brief procedures under Self Tests, which begin on page 1–5.
Performance Verification Procedures Input Channels vs. Model When performing the procedures in this section, be aware that some TDS models refer to input channels Ch 3 and Ch 4 as Aux 1 and Aux 2 respectively. Where appropriate, both names will appear in the procedure, for example, Ch 3 (Aux 1). The channel names for the various TDS models are shown below.
Performance Verification Procedures Initialize the oscilloscope: Press save/recall SETUP. Now, press the main-menu button Recall Factory Setup; then the side-menu button OK Confirm Factory Init. H Where instructed to use a front-panel button or knob, or select from a main or side menu, or verify a readout or status message, the name of the button or knob appears in boldface type: “press SHIFT; then UTILITY, press the main-menu button System until Cal is highlighted in the pop-up menu.
Performance Verification Procedures 1–4 TDS 500D, TDS 600B & TDS 700D Performance Verification and Specifications
Brief Procedures The Self Tests use internal routines to confirm basic functionality and proper adjustment. No test equipment is required to do these test procedures. The Functional Tests utilize the probe-compensation output at the front panel as a test-signal source for further verifying that the oscilloscope functions properly. A probe is required to do these test procedures. Self Tests This procedure uses internal routines to verify that the oscilloscope functions and was adjusted properly.
Brief Procedures f. H Press SHIFT; then press UTILITY. H Highlight Cal in the pop-up menu by repeatedly pressing the main-menu button System. See Figure 1–2. H Verify that the word Pass appears in the main menu under the following menu labels: Voltage Reference, Frequency Response, and Pulse Trigger. See Figure 1–2. Run the signal-path compensation: Press the main-menu button Signal Path; then press the side-menu button OK Compensate Signal Paths. g.
Brief Procedures Functional Tests The purpose of these procedures is to confirm that the oscilloscope functions properly. The only equipment required is one of the standard-accessory probes and, to check the file system, a 3.5 inch, 720 K or 1.44 Mbyte floppy disk. CAUTION. The P6217, P6243, and P6245 probes that can be used with this oscilloscope provide an extremely low loading capacitance (<1 pF) to ensure the best possible signal reproduction.
Brief Procedures connect the probe ground (typically black) to PROBE COMPENSATION GND. If using a P6243 or P6245 probe, you may want to attach a Y-lead connector and two SMD KlipChips as shown in Figure 1–3. Signal Gnd Figure 1–3: Universal test hookup for functional tests – TDS 600B shown b. Initialize the oscilloscope: H Press save/recall SETUP. H Press the main-menu button Recall Factory Setup. H Press the side-menu button OK Confirm Factory Init. 2.
Brief Procedures H Move the probe to the channel you selected. b. Match the trigger source to the channel selected: H Press TRIGGER MENU. H Press the main-menu button Source. H Press the side-menu button that corresponds to the channel selected, Ch2, Ch3, or Ch4. (Some TDS models use Ax1 and Ax2 instead of Ch3 and Ch4). c. Set up the selected channel: H Set the vertical SCALE to 200 mV. H Set the horizontal SCALE to 200 s. Press CLEAR MENU to remove any menu that may be on the screen.
Brief Procedures f. H Envelope mode displays an actively acquiring waveform on-screen with the noise displayed. H Average mode displays an actively acquiring waveform on-screen with the noise reduced. Test all channels: Repeat substeps a through e until all four input channels are verified. 3. Remove the test hookup: Disconnect the probe from the channel input and the probe-compensation terminals.
Brief Procedures c. The horizontal POSITION knob positions the signal left and right on-screen when rotated. 3. Remove the test hookup: Disconnect the probe from the channel input and the probe-compensation terminals. Verify the Main and Delayed Trigger Systems Equipment required One probe such as the P6243, P6245, P6139A, or P6339A Prerequisites None 1. Install the test hookup and preset the oscilloscope controls: a. Hook up the signal source: Install the probe on CH 1.
Brief Procedures H Pressing SET LEVEL TO 50% triggers the signal that you just left untriggered. (Leave the signal triggered). 3. Verify that the delayed trigger system operates: a. Select the delayed time base: H Press HORIZONTAL MENU. H Press the main-menu button Time Base. H Press the side-menu button Delayed Triggerable; then press the side-menu button Delayed Only. H Set the horizontal SCALE for the D (delayed) time base to 200 s. b.
Brief Procedures Verify the File System Equipment required One probe such as the P6243, P6245, P6139A, or P6339A Prerequisites None One 720 K or 1.44 Mbyte, 3.5 inch DOS-compatible disk. You can use a disk of your own or you can use the TDS Family Programmer Disk (Tektronix part number 063-3002-XX) included in the TDS 500D, TDS 600B & TDS 700D User Manual (Tektronix part number 071–0130–XX). 1. Install the test hookup and preset the oscilloscope controls: a.
Brief Procedures H Turn the general purpose knob to select the file to save. Choose (or fd0:, the floppy disk drive, hd0:, the optional hard disk drive, or Zip:, if an external Zip drive is connected). With this choice, you will save a file starting with , then containing 5-numbers, and a extension. For example, the first time you run this on a blank, formatted disk or on the Example Programs Disk, the oscilloscope will assign the name to your file.
Performance Tests This section contains a collection of procedures for checking that the TDS 500D, TDS 600B, and TDS 700D Oscilloscopes perform as warranted. The procedures are arranged in four logical groupings: Signal Acquisition System Checks, Time Base System Checks, Triggering System Checks, and Output Ports Checks. They check all the characteristics that are designated as checked in Specifications.
Performance Tests Equipment Required These procedures use external, traceable signal sources to directly check warranted characteristics. The required equipment list follows this introduction. Table 1–1: Test equipment Item number and description Minimum requirements Example Purpose 1. Attenuator,10X (two required) Ratio: 10X; impedance 50 ; connectors: female BNC input, male BNC output Tektronix part number 011-0059-02 Signal Attenuation 2.
Performance Tests Table 1–1: Test equipment (cont.) Item number and description Minimum requirements 15. Meter, Level and Power Sensor Frequency range:10 MHz to 400 MHz. Rohde & Schwarz URV 35, Amplitude range: 6 mVp-p to 2 Vp-p with NRV-Z8 power sensor1,4 16. Splitter, Power Frequency range: DC to 1 GHz. Tracking: >2.0% Rohde & Schwarz RVZ1,4 Checking Analog Bandwidth 17. Adapter (four required) Male N-to-female BNC Tektronix part number 103-0045-00 Checking Analog Bandwidth 18.
Performance Tests TDS 600B Test Record Photocopy this and the next three pages and use them to record the performance test results for your TDS 600B. TDS 600B Test Record Instrument Serial Number: Temperature: Date of Calibration: Certificate Number: RH %: Technician: TDS 600B Performance Test Minimum Incoming Outgoing Maximum Offset Accuracy CH1 Offset +1 mV +101 mV +1.01 V – 2.1 mV – 75.6 mV – 756 mV __________ __________ __________ __________ __________ __________ + 2.1 mV + 75.
Performance Tests TDS 600B Test Record (cont.) Instrument Serial Number: Temperature: Date of Calibration: Certificate Number: RH %: Technician: TDS 600B Performance Test Minimum Incoming Outgoing Maximum CH2 200 mV Vert scale setting, +5 Div position setting, –10 V offset – 11.7835 V __________ __________ – 11.4165 V CH2 1.01 V Vert scale setting, –5 Div position setting, +10 V offset + 17.102 V __________ __________ + 18.899 V CH2 1.
Performance Tests TDS 600B Test Record (cont.) Instrument Serial Number: Temperature: Date of Calibration: Certificate Number: RH %: Technician: TDS 600B Performance Test Minimum Incoming Outgoing Maximum N/A __________ __________ 100 ps –2.0 Div __________ __________ +2.0 Div Pulse-Glitch or Pulse-Width, Hor. scale ≤ 1 ms Lower Limit Upper Limit 3.5 ns 3.5 ns __________ __________ __________ __________ 6.5 ns 6.5 ns Pulse-Glitch or Pulse-Width, Hor.
Performance Tests TDS 600B Test Record (cont.) Instrument Serial Number: Temperature: Date of Calibration: Certificate Number: RH %: Technician: TDS 600B Performance Test Minimum Incoming Outgoing Maximum CH 3 or AX1 SIGNAL OUTPUT, 1 M Pk-Pk ≥ 80 mV __________ __________ Pk-Pk ≤ 120 mV CH 3 or AX1 SIGNAL OUTPUT, 50 Pk-Pk ≥ 40 mV __________ __________ Pk-Pk ≤ 60 mV Frequency (CH1 Freq). 950 Hz __________ __________ 1.
Performance Tests TDS 500D/700D Test Record Photocopy this and the next three pages and use them to record the performance test results for your TDS 500D/700D. The TDS 794D Test Record begins on page 1–26. TDS 500D/700D Test Record Instrument Serial Number: Temperature: Date of Calibration: Certificate Number: RH %: Technician: TDS 500D/700D Performance Test Minimum Incoming Outgoing Maximum Offset Accuracy CH1 Offset +1 mV +101 mV +1.01 V – 1.6 mV – 25.
Performance Tests TDS 500D/700D Test Record (cont.) Instrument Serial Number: Temperature: Date of Calibration: Certificate Number: RH %: Technician: TDS 500D/700D Performance Test Minimum Incoming Outgoing Maximum CH2 200 mV Vert scale setting, +5 Div position setting, –10 V offset – 11.6805 V __________ __________ – 11.5195 V CH2 1.01 V Vert scale setting, –5 Div position setting, +10 V offset + 17.621 V __________ __________ + 18.379 V CH2 1.
Performance Tests TDS 500D/700D Test Record (cont.) Instrument Serial Number: Temperature: Date of Calibration: Certificate Number: RH %: Technician: TDS 500D/700D Performance Test Minimum Incoming Outgoing Maximum Delay Between Channels N/A __________ __________ 50 ps –2.5 Div __________ __________ +2.5 Div Pulse-Glitch or Pulse-Width, Hor. scale ≤ 1 ms Lower Limit Upper Limit 3.5 ns 3.5 ns __________ __________ __________ __________ 6.5 ns 6.5 ns Pulse-Glitch or Pulse-Width, Hor.
Performance Tests TDS 500D/700D Test Record (cont.) Instrument Serial Number: Temperature: Date of Calibration: Certificate Number: RH %: Technician: TDS 500D/700D Performance Test Minimum Incoming Outgoing Maximum CH 3 or AX 1 SIGNAL OUTPUT, 1 M Pk-Pk ≥ 88 mV __________ __________ Pk-Pk ≤ 132 mV CH 3 or AX 1 SIGNAL OUTPUT, 50 Pk-Pk ≥ 44 mV __________ __________ Pk-Pk ≤ 66 mV Frequency (CH1 Freq). 950 Hz __________ __________ 1.
Performance Tests TDS 794D Test Record Photocopy this and the next two pages and use them to record the performance test results for your TDS 794D. TDS 794D Test Record Instrument Serial Number: Temperature: Date of Calibration: Certificate Number: RH %: Technician: TDS 794D Performance Test Minimum Incoming Outgoing Maximum Offset Accuracy CH1 Offset +10 mV +101 mV – 2.5 mV – 25.1 mV __________ __________ __________ __________ + 2.5 mV + 25.1 mV CH2 Offset +10 mV +101 mV – 2.5 mV – 25.
Performance Tests TDS 794D Test Record (cont.) Instrument Serial Number: Temperature: Date of Calibration: Certificate Number: RH %: Technician: TDS 794D Performance Test Minimum Incoming Outgoing Maximum CH2 200 mV Vert scale setting, 0 Div position setting, –5 V offset –5.6655 V __________ __________ –5.5345 V CH2 1 V Vert scale setting, 0 Div position setting, +2.5 V offset +5.289 V __________ __________ +5.711 V CH2 1 V Vert scale setting, 0 Div position setting, –2.5 V offset –5.
Performance Tests TDS 794D Test Record (cont.) Instrument Serial Number: Temperature: Date of Calibration: Certificate Number: RH %: Technician: TDS 794D Performance Test Minimum Incoming Outgoing Maximum –2.5 Div __________ __________ +2.5 Div Pulse-Glitch or Pulse-Width, Hor. scale ≤ 1 ms Lower Limit Upper Limit 3.5 ns 3.5 ns __________ __________ __________ __________ 6.5 ns 6.5 ns Pulse-Glitch or Pulse-Width, Hor. scale > 1 ms Lower Limit Upper Limit 1.9 ms 1.
Performance Tests Signal Acquisition System Checks These procedures check those characteristics that relate to the signal-acquisition system and are listed as checked under Warranted Characteristics in Specifications. Refer to Table 1–1 on page 1–16 for test equipment specifications. Check Offset Accuracy (Zero Setting) Equipment required None Prerequisites The oscilloscope must meet the prerequisites listed on page 1–15. See Input Channels vs. Model on page 1–2. 1. Preset the instrument controls: a.
Performance Tests b. Set the vertical scale: Set the vertical SCALE to one of the settings listed in Table 1–2 that is not yet checked. (Start with the first setting listed). H Press VERTICAL MENU. Press the main-menu button Fine Scale. H Use the keypad to enter the vertical scale. For the 1 mV setting, press 1, SHIFT, m, then ENTER. For the 101 mV setting, press 101, SHIFT, m, then ENTER. For the 1.01 V setting, press 1.01, then ENTER. H Press CLEAR MENU.
Performance Tests Read the measurement results. 2 Align the active cursor over the waveform. 1 H Enter voltage on test record. H Repeat substeps b through f until all vertical scale settings listed in Table 1–2, are checked for the channel under test. Figure 1–4: Measurement of DC offset accuracy at zero setting – TDS 684B shown g. Test all channels: Repeat substeps a through f for all input channels.
Performance Tests Check DC Voltage Measurement Accuracy WARNING. The generator is capable of outputting dangerous voltages. Be sure to set the DC calibration generator to 0 volts before connecting, disconnecting, and/or moving the test hookup during the performance of this procedure. Also, check that the calibrator does not have shorting straps installed between the DC and sense outputs or grounds.
Performance Tests b. Initialize the oscilloscope: H Press save/recall SETUP. H Press the main-menu button Recall Factory Setup. H Press the side-menu button OK Confirm Factory Init. c. Modify the default settings: H Press SHIFT; then press ACQUIRE MENU. H Press the main-menu button Mode; then press the side-menu button Average 16. 2.
Performance Tests Table 1–3: DC Voltage measurement accuracy Scale setting Position setting (Divs) Offset setting Generator setting TDS 600B Accuracy limits TDS 500D/700D (except TDS 794D) Accuracy limits 5 mV –5 +1 V +1.040 V +1.0329 V to +1.0471 V +1.0355 V to +1.0445 V +5 –1 V –1.040 V –1.0471 V to –1.0329 V –1.0445 V to –1.0355 V 200 mV –5 +10 V +11.6 V +11.4165 V to +11.7835 V +11.5195 V to +11.6805 V +5 –10 V –11.6 V –11.7835 V to –11.4165 V –11.6805 V to –11.
Performance Tests Turn on the measurement called mean and read the results here. Figure 1–6: Measurement of DC accuracy at maximum offset and position f. Check against limits: H CHECK that the readout for the measurement Mean readout on screen is within the limits listed for the current vertical scale and position/offset/generator settings. Enter value on test record. H Repeat substep d, reversing the polarity of the position, offset, and generator settings as is listed in the table.
Performance Tests Check Analog Bandwidth Equipment required One sine wave generator (Item 14) One level meter and power sensor (Item 15) One power splitter (Item 16) One female N to male BNC adapter (Item 18) Four male N to female BNC adapters (Item 17) Two 50 precision cables (Item 5) Attenuators (Items 1 and 2) Optional: One high-frequency leveled sine wave generator and its leveling head – replaces items 14, 15, 16, 17, and 18 Prerequisites See page 1–15 1.
Performance Tests NOTE. The sine wave generator output amplitude must be leveled to within 0.35 db of the reference frequency (10 MHz) through the bandwidth frequency listed in Table 1–4. The 0.35 db requirement is necessary to ensure a bandwidth that meets Tektronix specifications. You can perform bandwidth PV using an unleveled sine wave generator (with amplitude error > 0.35 db). Under these conditions, the bandwidth PV is subject to the flatness errors associated with the generator used.
Performance Tests 2. Confirm the input channels are within limits for analog bandwidth: Do the following substeps — test CH 1 first, skipping substeps a and b since CH 1 is already set up for testing from step 1. a. Select an unchecked channel: H Press WAVEFORM OFF to remove the channel just confirmed from display. H Press the front-panel button that corresponds to the channel you are to confirm. H Move the leveling output of the sine wave generator to the channel you selected. b.
Performance Tests Table 1–4: Analog bandwidth Test frequency Vertical er ical scale cale Reference Re ere ce amplitude ampli e (6 divisions) Horizontal ri al scale TDS 794D TDS 580D TDS 680B TDS 684B TDS 784D 100 mV 600 mV 1 ns 2 GHz 1 GHz 500 MHz 500 MHz ≥424 mV 1 mV 6 mV 1 ns NA 500 MHz 250 MHz 450 MHz ≥4.24 mV 2 mV 12 mV 1 ns NA 600 MHz 300 MHz 500 MHz ≥8.48 mV 5 mV 30 mV 1 ns NA 750 MHz 450 MHz 500 MHz ≥21.
Performance Tests f. Read results. 3 Set the generator (reference) frequency to the test frequency from Table 1–4. 1 Set the horizontal scale from Table 1–4. 2 Measure the test signal: H Set the frequency of the generator, as shown on screen, to the test frequency in Table 1–4 that corresponds to the vertical scale set in substep d. See Figure 1–9. H Set the horizontal SCALE to the horizontal scale setting in Table 1–4 that corresponds to the vertical scale set in substep d.
Performance Tests STOP. Checking each channel’s bandwidth at all vertical scale settings is time consuming and unnecessary. You may skip checking the remaining vertical scale settings in Table 1–4 (that is, skip the following substep, h) if this oscilloscope has performed as follows: H Passed the 100 mV vertical scale setting just checked in this procedure. H Passed the Verify Internal Adjustment, Self Compensation, and Diagnostics procedure found under Self Tests, on page 1–5. NOTE.
Performance Tests STOP. DO NOT use the vertical position knob to reposition any channel while doing this check. To do so invalidates the test. 1. Install the test hookup and preset the instrument controls: a. Initialize the front panel: H Press save/recall SETUP. H Press the main-menu button Recall Factory Setup. H Press the side-menu button OK Confirm Factory Init. b. Modify the initialized front-panel control settings: H Do not adjust the vertical position of any channel during this procedure.
Performance Tests 2. Confirm all four channels are within limits for channel delay: a. Set up the generator: Set the generator frequency to 250 MHz and the amplitude for about six divisions in CH 1. Hint: As you are adjusting the generator amplitude, push SET LEVEL TO 50% frequently to speed up the updating of the waveform amplitude on screen. b. The horizontal SCALE should already be set to 500 ps. On the TDS 580D, TDS 784D, TDS 794D, and 600B, now set it to 200 ps.
Performance Tests Read results. 4 Display the waveforms. 1 H Press CURSOR. H Press the main-menu button Function; then press the side-menu button V Bars. H Press CLEAR MENU. H Align one V bar cursor to the time reference point of the left-most waveform edge and the other cursor to the time reference point of the right-most waveform edge by rotating the General Purpose knob. (Press SELECT to switch between the two cursors). See Figure 1–11 on page 1–44.
Performance Tests i. Use the cursors to measure the skew from CH1 to CH2, CH1 to CH3, and CH1 to CH4 (use AX1 and AX2 instead of CH3 and CH4 if your TDS model is so equipped). Write down these three numbers in the first measurement column of Table 1–5. Note that these numbers may be either positive or negative. j. Repeat the procedure from step 1.c through 2.e. k. Again use the cursors to measure the skew from CH1 to CH2, CH1 to CH3, and CH1 to CH4.
Performance Tests Time Base System Checks These procedures check those characteristics that relate to the Main and Delayed time base system and are listed as checked under Warranted Characteristics in Specifications.
Performance Tests H Press VERTICAL MENU; then press the main-menu button Coupling. Press the side-menu button to toggle it to the 50 setting. (This step is not required on the TDS 794D.) H Press SET LEVEL TO 50%. H Use the vertical POSITION knob to center the test signal on screen. H Press TRIGGER MENU; then press the main-menu button Mode & Holdoff. Press the side-menu button Normal. 2. Confirm Main and Delayed time bases are within limits for accuracies: a.
Performance Tests Align the trigger T to the center graticule line. 1 Set 2 horizontal mode. 4 3 Check long–term sample rates and delay time accuracies against limits. Set horizontal scale and delayed time. Figure 1–13: Measurement of accuracy – Long-term and delay time 3. Disconnect the hookup: Disconnect the cable from the generator output at the input connector of CH 1.
Performance Tests Trigger System Checks These procedures check those characteristics that relate to the Main and Delayed trigger systems and are listed as checked in Specifications. Check Accuracy (Time) for Pulse-Glitch or Pulse-Width Triggering Equipment required One sine wave generator (Item 14) One 10X attenuator (Item 1) One 50 , precision coaxial cable (Item 5) Prerequisites See page 1–15 1. Install the test hookup and preset the instrument controls: a.
Performance Tests Sine Wave Generator Oscilloscope Output 10X Attenuator 50 coaxial cable Figure 1–14: Initial test hookup 2. Confirm the trigger system is within time-accuracy limits for pulse-glitch or pulse-width triggering (Horizontal Scale ≤1 s): a. Display the test signal: Set the output of the sine wave generator for a 100 MHz, five-division sine wave on screen. Press SET LEVEL TO 50%. b. Set the trigger mode: Press TRIGGER MENU.
Performance Tests H Press the side-menu button Lower Limit. H Use the general purpose knob to increase the Lower Limit readout until triggering is lost. H CHECK that the Lower Limit readout, after the oscilloscope loses triggering, is within 3.5 ns to 6.5 ns, inclusive. H Enter time on test record. H Use the keypad to return the Lower Limit to 2 ns and reestablish triggering.
Performance Tests H Press the side-menu button Upper Limit. Use the keyboard to set the upper limit to 4 s. H Press the side-menu button Lower Limit. Use the keypad to set the lower limit to 500 ns. b. Display the test signal: H Set the horizontal SCALE to 5 s. H Set the output of the sine wave generator for a 250 kHz, five-division sine wave on screen. Set the vertical SCALE to 20 mV (the waveform will overdrive the display). H Press SET LEVEL TO 50%. c.
Performance Tests Check Accuracy, Trigger-Level or Threshold, DC Coupled Equipment required One DC calibration generator (Item 9) One BNC T connector (Item 7) Two 50 W, precision coaxial cables (Item 5) Prerequisites See page 1–15. Oscilloscope DC Calibrator Dual banana to BNC adapters 50 W coaxial cables BNC T connector Figure 1–16: Initial test hookup 1. Install the test hookup and preset the instrument controls: a.
Performance Tests H Set the vertical SCALE to 200 mV. H Press VERTICAL MENU, then press the main-menu button Position. H Set vertical position to –3 divisions (press –3, then ENTER, on the keypad). The baseline level will move down three divisions. See Figure 1–17 on page 1–55. H Press the main-menu button Offset. H Set vertical offset to +10 volts (+5 volts for the TDS 794D) with the keypad. The baseline level will move off screen.
Performance Tests Set vertical position to –3 divs. Set vertical offset to +10 volts. 1 2 3 Set DC calibration generator to equal offset (+10 V). Read results. Figure 1–17: Measurement of trigger-level accuracy 3. Confirm Delayed trigger system is within limits for Trigger-level/Threshold accuracy: a. Select the Delayed time base: H Press HORIZONTAL MENU. H Press the main-menu button Time Base. H Press the side-menu buttons Delayed Only and Delayed Triggerable.
Performance Tests d. Check against limits: Do the following subparts in the order listed. H CHECK that the Level readout in the side menu is within the limits listed in Table 1–7. Table 1–7: Delayed trigger level accuracy readout Instrument Minimum Maximum TDS 600B 9.863 V 10.137 V TDS 500D/700D 9.8853 V 10.1147 V TDS 794D 4.8953 V 5.1047 V H Enter voltage on test record. H Press the main-menu button Slope; then press the side-menu button for negative slope. See icon at left.
Performance Tests Sensitivity, Edge Trigger, DC Coupled Equipment required One sine wave generator (Item 14) Two precision 50 coaxial cables (Item 5) One 10X attenuator (Item 1) One BNC T connector (Item 7) One 5X attenuator (Item 2) Prerequisites See page 1–15. 1. Install the test hookup and preset the instrument controls: a. Initialize the oscilloscope: H Press save/recall SETUP. H Press the main-menu button Recall Factory Setup. H Press the side-menu button OK Confirm Factory Init. b.
Performance Tests Sine Wave Generator To AUX TRIG INPUT on rear panel Oscilloscope Figure 1–18: Initial test hookup 2. Confirm Main and Delayed trigger systems are within sensitivity limits (50 MHz): a. Display the test signal: H Set the generator frequency to 50 MHz. H Press MEASURE. H Press the main-menu button Level Setup; then press the side-menu button Min-Max. H Press the main-menu button Select Measrmnt for Ch1.
Performance Tests 2 ms/division and faster, TRIG’D will remain constantly lighted. It will flash for slower settings. H Press TRIGGER MENU; then press the main-menu button Slope. H Press SET LEVEL TO 50%. Adjust the TRIGGER LEVEL knob so that the TRIG’D light is on. Set the level to near the middle of the range where the TRIG’D light is on. CHECK that the trigger is stable for the test waveform on both the positive and negative slopes.
Performance Tests H Press SHIFT; then press DELAYED TRIG. Press the main-menu button Level. H Press the side-menu button SET TO 50%. CHECK that a stable trigger is obtained for the test waveform for both the positive and negative slopes of the waveform. Use the TRIGGER LEVEL knob to stabilize the Main trigger. Use the general purpose knob to stabilize the Delayed trigger. Press the main-menu button Slope; then use the side menu to switch between trigger slopes. See Figure 1–19.
Performance Tests H Leave the Main trigger system triggered on the positive slope of the waveform before proceeding to the next check. H Press the main-menu button Source; then press the side-menu button –more– until CH 1 appears. Press CH 1. 4. Confirm that the Main and Delayed trigger systems are within sensitivity limits (full bandwidth): a. Hook up the test-signal source: Disconnect the hookup installed in step 1. Connect the signal output of a high-frequency sine wave generator to CH 1.
Performance Tests Output Signal Checks The procedure that follows checks those characteristics of the output signals that are listed as checked under Warranted Characteristics in Specifications. The oscilloscope outputs these signals at its front and rear panels. Check Outputs — CH 3 (AUX 1 on some models) Main and Delayed Trigger Equipment required Two precision 50 W coaxial cables (Item 5) Prerequisites See page 1–15.
Performance Tests d. Modify the initialized front-panel control settings: H Press WAVEFORM OFF to turn off CH 1. H Press CH 3 (AUX 1 on some TDS models) to display that channel. H If necessary, adjust the calibration generator output for 5 divisions of amplitude. (With the 50W input of the TDS 794D, you may need to double the output of the generator to get 5 divisions of amplitude.) H Set the horizontal SCALE to 200 ms. H Press SHIFT; then press ACQUIRE MENU.
Performance Tests H CHECK that the Ch2 High readout is ≥1.0 volt and that the Ch2 Low readout ≤0.25 volts. H Enter high and low voltages on the test record. Check output Figure 1–21: Measurement of main trigger out limits d. Check Delayed Trigger output against limits: See Figure 1–21. 1–64 H Move the precision 50 W cable from the rear-panel Main Trigger Output BNC to the rear-panel Delayed Trigger Output BNC. H CHECK that the Ch2 High readout is ≥1.0 volt and that the Ch2 Low readout ≤0.
Performance Tests 3. Confirm CH 3 (AUX 1 on some TDS models) output is within limits for gain: a. Measure gain: H Move the precision 50 W cable from the rear-panel DELAYED TRIGGER OUTPUT BNC to the rear-panel CH 3/AUX 1 BNC (SIGNAL OUT on some models). H Push TRIGGER MENU. H Press the main-menu button Source. H Press the side-menu button Ch3. (Ax1 on some TDS models) H Set vertical SCALE to 100 mV. H Press SET LEVEL TO 50%.
Performance Tests Check Probe Compensator Output Equipment required One female BNC to clip adapter (Item 3) Two dual-banana connectors (Item 6) One BNC T connector (Item 7) Two precision 50 W coaxial cables (Item 5) One DC calibration generator (Item 9) Prerequisites See page 1–15. Also, the oscilloscope must have passed Check Accuracy For Long-Term Sample Rate, Delay Time, and Delta Time Measurements on page 1–46. 1. Install the test hookup and preset the instrument controls: a.
Performance Tests H Press the side-menu button OK Confirm Factory Init. c. Modify the initialized front-panel control settings: H Set the horizontal SCALE to 200 s. H Press SET LEVEL TO 50%. H Use the vertical POSITION knob to center the display on screen. H Press SHIFT; then press ACQUIRE MENU. H Press the main-menu button Mode; then press the side-menu button Average. H Select 128 averages with the keypad or the general purpose knob. 2.
Performance Tests Figure 1–23: Measurement of probe compensator frequency c. Save the probe compensation signal in reference memory: H Press SAVE/RECALL WAVEFORM; then press the main-menu button Save Wfm Ch 1. H Press the side-menu button To Ref 1 to save the probe compensation signal in reference 1. H Disconnect the cable from CH 1 and the clips from the probe compensation terminals. H Press MORE; then press the main-menu button Ref 1 to displayed the stored signal. H Press CH 1. d.
Performance Tests H Connect the Sense output of the generator through a second dual-banana connector followed by a 50 W precision coaxial cable to the other side of the BNC T connector. Now connect the BNC T connector to CH 1. See Figure 1–24. Oscilloscope DC Calibrator Dual banana to BNC adapters 50 coaxial cables BNC T connector Figure 1–24: Subsequent test hookup e. Measure amplitude of the probe compensation signal: f. H Press SHIFT; then press ACQUIRE MENU.
Performance Tests Figure 1–25: Measurement of probe compensator amplitude g. Check against limits: H Subtract the value just obtained (base level) from that obtained previously (top level). H CHECK that the difference obtained is within 495 mV to 505 mV, inclusive. H Enter voltage difference on test record. 3. Disconnect the hookup: Disconnect the cable from CH 1.
Performance Tests Option 05 Video Trigger Checks (Not Available on TDS 794D) Check Video Trigger Equipment required PAL signal source (Item 19) 60 Hz. sine wave generator (Item 20) Pulse generator (Item 21) Two 75 cables (Item 22) Two 75 terminators (Item 23) One BNC T connector (Item 7) One precision 50 W coaxial cable (Item 5) 50 terminator (Item 4) Prerequisites See page 1–15. These prerequisites include running the signal path compensation routine. 1.
Performance Tests h. Select 250 MHz from the side menu. i. Press the main-menu Fine Scale. j. Use the keypad to set the fine scale to 282 mV (press 282, SHIFT, m, then ENTER). k. Press HORIZONTAL MENU. l. Press the main-menu Horiz Scale. m. Use the keypad to set the horizontal scale to 200 ns (press 200, SHIFT, n, then ENTER). 3. Check Jitter vs. Signal Amplitude a. Set up equipment for Jitter Test. See Figure 1–26.
Performance Tests Figure 1–27: Jitter test displayed waveform – TDS 684B shown c. Press SHIFT; then press ACQUIRE MENU. d. Press the main-menu Mode. e. Select the side-menu Average. It should be already set to 16. f. Press the main-menu Create Limit Test Template. g. Press the side-menu V Limit. h. Use the keypad to set V Limit to 180 mdiv (press 180, SHIFT, m, then ENTER). i. Press the side-menu OK Store Template. j. Press MORE. k. Press the main-menu Ref1. l. Press CH1. m.
Performance Tests q. Press the main-menu Mode. r. Press the side-menu Envelope. s. Use the keypad to set envelope to use 100 acquisitions (press 100, then ENTER). t. Press the main-menu Stop After button. u. Press the side-menu Single Acquisition Sequence. v. Confirm that the oscilloscope successfully makes 100 acquisitions. If not successful, the oscilloscope bell will ring. When the word Run in the top left corner of the display changes to STOP, the test is complete. See Figure 1–28.
Performance Tests b. Press WAVEFORM OFF. c. Press HORIZONTAL MENU. d. Use the keypad to set horizontal scale (/div) to 50 s (press 50, SHIFT, m, then ENTER). e. Press SHIFT; then press ACQUIRE MENU. f. Press the main-menu Stop After. g. Press the side-menu RUN/STOP button only. h. Press the main-menu Mode. i. Press the side-menu Sample. j. Press RUN/STOP. k. Press VERTICAL MENU. l. Use the keypad to set fine scale to 300 mV (press 300, SHIFT, m, then ENTER). m.
Performance Tests n. Use the keypad to set the fine scale to 75 mV (press 75, SHIFT, m, then ENTER). o. CONFIRM that the TRIG’D LED stays lighted and that the waveform on screen is stable. That is, it does not move horizontally or vertically. Also, CONFIRM that the waveform on the screen has one positive pulse and a number of negative pulses. See Figure 1–30. Positive pulse Negative pulses Figure 1–30: Triggered signal range test – 75 mV p. Disconnect all test equipment (TSG121) from the oscilloscope.
Performance Tests H Use the keypad to set the horizontal scale (/div) to 5 ms (press 5, SHIFT, m, then ENTER). b. Set up 60 Hz signal generator: H Connect the output of the signal generator to the CH2 input through a 50 W cable. See Figure 1–31. Oscilloscope Signal Generator Output 50 cable Figure 1–31: 60 Hz Rejection test hookup H Adjust the signal generator for three vertical divisions of 60 Hz signal. See Figure 1–32. The signal will not be triggered. That is, it will run free.
Performance Tests c. Check 60 Hz rejection: H Use the keypad to set the horizontal scale (/div) to 50 ms (press 50, SHIFT, m, then ENTER). H Reconnect the output of the signal generator. Connect the composite signal connector of the PAL signal source (labeled COMPST on the TSG 121) to a 75 W cable and a 75 W terminator. Connect both signals to the CH1 input through a BNC T. See Figure 1–33. H Press VERTICAL MENU. H If needed, press the main-menu Fine Scale.
Performance Tests Figure 1–34: 60 Hz Rejection test result – TDS 684B shown 6. Check Line Count Accuracy. a. Set up oscilloscope for Line Count Accuracy Test: H Press WAVEFORM OFF. H Press CH1. H Press HORIZONTAL MENU. H Press the main-menu Record Length. H Press the side-menu –more– until you see the appropriate menu. H Press the side-menu 5000 points in 100divs. H Press the main-menu Horiz Scale (/div).
Performance Tests PAL signal source Oscilloscope Output 75 cable 75 terminator Figure 1–35: Line count accuracy test hookup 1–80 H Press the main-menu Trigger Position. H Press the side-menu to Set to 50%. H Press the main-menu to Horiz Pos. H Press the side-menu to Set to 50%. H Use the HORIZONTAL POSITION knob to move the falling edge of the sync pulse to two divisions to the left of center screen. See Figure 1–36.
Performance Tests Figure 1–36: Line count accuracy test setup waveform – TDS 684B shown H Press CURSOR. H Press the main-menu Function. H Press the side-menu V Bars. H Using the General Purpose knob, place the left cursor directly over the trigger ‘T’ icon. H Press SELECT. H Turn the General Purpose knob to adjust the right cursor for a cursor delta reading of 6.780us. H Use the HORIZONTAL POSITION knob to position the right cursor to center screen.
Performance Tests Figure 1–37: Line count accuracy correct result waveform H Disconnect all test equipment (TSG 121) from the oscilloscope. H Turn off cursors by pressing CURSOR, then the main-menu Function button, and, finally, Off from the side menu. 7. Check the Sync Duty Cycle. a. Set up oscilloscope for Sync Duty Cycle Test: 1–82 H Press TRIGGER MENU. H Press the Standard pop-up to select FlexFmt. Trigger Type should already be set to Video. H Press the main-menu Setup.
Performance Tests H Use the keypad to set the number of fields to 1 (press 1, then ENTER). H Press the side-menu Sync Width. H Use the keypad to set the width to 400 ns (press 400, SHIFT, n, then ENTER). H Press the side-menu –more– 1 of 2. Then press V1 Start Time. H Use the keypad to set V1 start time to 10.10 s (press 10.10, SHIFT, m, then ENTER). H Press the side-menu V1 Stop Time. H Use the keypad to set V1 stop time to 10.50 s (press 10.50, SHIFT, m, then ENTER).
Performance Tests c. Check Sync Duty Cycle: H Connect the pulse generator through a 50 W cable and a 50 W terminator to the oscilloscope CH1 input. See Figure 1–38. Pulse Generator Oscilloscope Output 50 cable 50 terminator Figure 1–38: Setup for sync duty cycle test H Turn the pulse generator OUTPUT (VOLTS) control until the signal on the oscilloscope shows a one division negative-going pulse. See Figure 1–39. NOTE. You may need to adjust the trigger level control to obtain a stable trigger.
Performance Tests Figure 1–39: Sync duty cycle test: one-div neg pulse waveform H Turn the pulse generator PULSE DURATION variable control to adjust the negative pulse so the oscilloscope’s CH1 – Width measurement displays 400ns +/–10 ns. H Turn the HORIZONTAL SCALE knob to set the oscilloscope time base to 5ms/div. H Turn the pulse generator PERIOD variable control to adjust the period until the oscilloscope CH1 Period measurement reads 21.000ms –25/+50 ns. See Figure 1–40. Read note shown below.
Performance Tests Figure 1–40: Sync duty cycle test: critically adjusted pulse H Press TRIGGER MENU. H Press the main-menu Type pop-up until you select Video. If the TRIG’D LED is not lighted, check that the CH1 – Width and CH1 Period measurements are adjusted correctly. See note above. CONFIRM that the setup is correct and the oscilloscope will trigger. 1–86 H CONFIRM that the TRIG’D LED is lighted and the waveform is stable.
Performance Tests H Disconnect the signal source from CH1, wait a few seconds, then reconnect the signal. H CONFIRM that the TRIG’D LED is lighted and the waveform is stable. H Disconnect all test equipment from the oscilloscope. H Press save/recall SETUP, the main-menu button Recall Factory Setup, and the side-menu OK Confirm Factory Init.
Performance Tests Sine Wave Generator Leveling Procedure Some procedures in this manual require a sine wave generator to produce the necessary test signals. If you do not have a leveled sine wave generator, use one of the following procedures to level the output amplitude of your sine wave generator.
Performance Tests H Adjust the sine wave generator amplitude to the required number of divisions as measured by the oscilloscope. 3. Record the reference level: Note the reading on the level meter. 4. Set the generator to the new frequency and reference level: H Change the sine wave generator to the desired new frequency. H Input the correction factor and/or the new frequency into the level meter. H Adjust the sine wave generator amplitude until the level meter again reads the value noted in step 3.
Performance Tests Oscilloscope Sine Wave Generator Output Level Meter Power sensor Connect the sine wave generator to the oscilloscope and the power sensor as directed in the text. Input Figure 1–42: Equipment setup for maximum amplitude 2. Set the Generator: H Set the sine wave generator to a reference frequency of 10 MHz. H Adjust the sine wave generator amplitude to the required number of divisions as measured by the oscilloscope. 3.
Performance Tests Optical Filters Checks (TDS 500D/TDS 700D Only) The procedure that follows verifies that the frequency response of the combined P670xB and TDS500D/700D oscilloscope system is a Fourth Order Bessel Thompson Filter which is within limits. Filter Availability Nominal Filters are available with Option 2C. Reference Receiver Filters are available with Options 3C and 4C. Options 3C and 4C are not available without 2C, and 3C and 4C are not available on the TDS 794D.
Performance Tests Table 1–10: Option 3C and 4C Specifications (not available on TDS 794D) Name Description Calibration Range, Reference Receiver 10 mW per division 20 mW per division 50 mW per division Temperature Range, Warranted Filter 23_ C, "5_ C Calibration Range, Controlled Up to 2X the data rate for all filters except FC1063 filter Up to 1.
Performance Tests Reference Receiver Verification Equipment required OIG501 (use with P6701B) (Item 24) OIG502 (use with P6703B) (Item 25) Optical Attenuator OA5022 (Item 26) Fiber Optic Cable (Item 27) Optical-to-Electrical Converter (item 28) Prerequisites See page 1–15. Also, the probe and the oscilloscope channel it is attached to must have been calibrated as a reference receiver. 1.
Performance Tests H Connect the optical probe on CH 1 of the oscilloscope to the OPTICAL OUTPUT of the optical attenuator using the fiber-optic cable of the probe. Set an optical impulse level that does not clip the vertical channel of the oscilloscope. c. Set up the OIG to run with LOW impulse energy. H Keep the impulse below 100 W peak level because high-energy impulses into the P670x probe will cause major changes in the frequency response of the probe. H Set the OIG for 1 MHz internal trigger.
Performance Tests H Press HORIZONTAL MENU; then press the main-menu button Trigger Position. Set the Trigger Position to 20% using the general purpose knob or keypad. NOTE. Press SHIFT to change the horizontal position speed. The position moves faster when SHIFT is lighted. H Adjust the HORIZONTAL POSITION to move the 20% trigger point onto the display (see Figure 1–44). Figure 1–44: Optical impulse of Ch1 input from OA5022 Optical Attenuator (OIG501 / OIG502 fed into optical attenuator in Step 1) j.
Performance Tests NOTE. is the standard that you are verifying (such as OC1, OC3, OC12, FC1063; see Table 1–12). H From the Mask Type pop-up menu, select the mask type () of your reference receiver. H Press the Standard Mask main menu; then select your reference receiver mask () from the side menu. NOTE. For the Bessel Thompson (BT) filter to be active, the VERTICAL MENU deskew must be set to zero on all four channels. Also, the ACQUIRE MENU Acquisition Mode must be Sample.
Performance Tests 4. Move the beginning of the FFT data record onto the screen: NOTE. Press SHIFT to change the horizontal position speed. The position moves faster when SHIFT is lighted. H Adjust the HORIZONTAL POSITION control to move the beginning of the FFT data record onto the display. NOTE. Expanding the horizontal scale of the FFT waveform gives greater resolution when making cursor measurements.
Performance Tests Figure 1–45: Optical impulse response for OC–12 SONET Reference Receiver NOTE. In Figure 1–45, the left cursor is at the DC frequency. The right cursor is at the OC-12 data rate of 622 MHz "4 MHz. Also, note that the reference receiver, RR, designation is beside the 20 W vertical scale factor. f. 1–98 Next, move the cursor currently positioned at the beginning of the record until the cursor is just right of the DC spike in the response (see Figure 1–46).
Performance Tests Figure 1–46: Optical impulse response for OC–12 SONET Reference Receiver NOTE. In Figure 1–46 the left cursor has been moved to the zero dB level. The right cursor remains at the OC–12 data rate of 622 MHz "4 MHz (the delta frequency is 584 MHz because the right cursor is no longer referenced to DC). The delta attenuation from the zero dB level to the 622 MHz Cursor is 5.6 dB. 6. Repeat steps 5d through 5f, starting on page 1–97, moving the second cursor to twice the bit rate (1.
Performance Tests Table 1–12: Bessel Thompson frequency response and reference receiver limits Standard Frequency (MHz) Lower Limit (dB) Nominal (dB) Upper Limit (dB) Measured (delta dB) ÁÁÁÁ ÁÁÁÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁ ÁÁÁÁÁÁÁ ÁÁÁÁ ÁÁÁÁÁ
Performance Tests Table 1–12: Bessel Thompson frequency response and reference receiver limits (cont.
Performance Tests Table 1–12: Bessel Thompson frequency response and reference receiver limits (cont.
Specifications
Specifications This section begins with a general description of the traits of the TDS 500D, TDS 600B and TDS 700D oscilloscopes. Three sections follow, one for each of three classes of traits: nominal traits, warranted characteristics, and typical characteristics. Product Description The TDS 500D, TDS 600B and TDS 700D oscilloscopes are portable, four-channel instruments suitable for use in a variety of test and measurement applications and systems. Table 2–1 lists key features.
Specifications Table 2–1: Key features of the TDS 500D, 600B and 700D oscilloscopes (cont.) Feature TDS 600B TDS 500D & TDS 700D Storage Floppy disk drive: 1.44 Mbyte, 3.5 inch, DOS 3.3-or-later floppy disk drive Internal hard disk drive (optional on the TDS 500D and 700D) Iomega Zip drive compatible NVRAM storage for saving waveforms, hardcopies, and setups I/O 1 Full GPIB programmability.
Specifications GUI The user interface also makes use of a GUI, or Graphical User Interface, to make setting functions and interpreting the display more intuitive. Some menus and status are displayed using iconic representations of function settings, such as those shown here for full, 250 MHz and 20 MHz bandwidth. Such icons allow you to more readily determine status or the available settings.
Specifications Table 2–2: Record length and divisions per record vs.
Specifications Table 2–2: Record length and divisions per record vs. TDS model (cont.
Specifications that you specify. It can also trigger on a pulse edge that has a slew rate faster or slower than the rate you specify. The timeout trigger will act when events do not occur in a defined time period. The pulse trigger is also configurable for source, polarity, mode, and holdoff. H Video (with option 05: Video Trigger): Video triggering is compatible with standard NTSC, PAL, SECAM, and HDTV formats.
Specifications On-Board User Assistance Help and autoset can assist you in setting up the oscilloscope to make your measurements. Help Autoset Help displays operational information about any front-panel control. When help mode is in effect, manipulating any front-panel control causes the oscilloscope to display information about that control. When help is first invoked, an introduction to help is displayed on screen.
Specifications Digital Signal Processing (DSP) An important component of the multiprocessor architecture of this oscilloscope is Tektronix’ proprietary digital signal processor, the DSP. This dedicated processor supports advanced analysis of your waveforms when doing such compute-intensive tasks as interpolation, waveform math, and signal averaging. It also teams with a custom display system to deliver specialized display modes (See Display, later in this description).
Specifications The hardcopies obtained are based on what is displayed on-screen at the time hardcopy is invoked. The hardcopies can be stamped with date and time and spooled to a queue for printing at a later time. You can output screen information via GPIB, RS-232-C, or Centronics interfaces. Display The offer flexible display options.
Specifications 2–10 TDS 500D, TDS 600B & TDS 700D Performance Verification and Specifications
Nominal Traits This section contains a collection of tables that list the various nominal traits that describe the TDS 500D, TDS 600B, and TDS 700D oscilloscopes. Electrical and mechanical traits are included. Nominal traits are described using simple statements of fact such as “Four, all identical” for the trait “Input Channels, Number of,” rather than in terms of limits that are performance requirements.
Nominal Traits Table 2–4: Nominal traits — Time base system Name Description Range, Sample-Rate1,3 TDS 684B: 5 Samples/sec to 5 GSamples/sec on four channels simultaneously TDS 680B: 5 Samples/sec to 5 GSamples/sec on two channels simultaneously TDS 644B: 5 Samples/sec to 2.5 GSamples/sec on four channels simultaneously TDS 620B: 5 Samples/sec to 2.
Nominal Traits Table 2–4: Nominal traits — Time base system (cont.
Nominal Traits Table 2–5: Nominal traits — Triggering system (cont.) Name Description Ranges, Setup and Hold for ime et /Hol Violation iolatio Trigger igge TimeSetup/Hold Feature Min to max Setup Time –100 ns to 100 ns Hold Time –1 ns to 100 ns Setup + Hold Time 2 ns For Setup Time, positive numbers mean a data transition before the clock edge and negative means a transition after the clock edge.
Nominal Traits Table 2–5: Nominal traits — Triggering system (cont.
Nominal Traits Table 2–6: Nominal traits — Display system (cont.
Nominal Traits Table 2–9: Nominal traits — Mechanical Name Description Cooling Method Forced-air circulation with no air filter. Clearance is required. Refer to the TDS 500D, TDS 600B & TDS 700D User Manual for minimum clearance dimensions. Construction Material Chassis parts constructed of aluminum alloy; front panel constructed of plastic laminate; circuit boards constructed of glass laminate. Cabinet is aluminum and is clad in Tektronix Blue vinyl material. Weight Standard Oscilloscope 14.
Nominal Traits 2–18 TDS 500D, TDS 600B & TDS 700D Performance Verification and Specifications
Warranted Characteristics This section lists the various warranted characteristics that describe the TDS 500D, TDS 600B and TDS 700D oscilloscopes. Electrical and environmental characteristics are included. Warranted characteristics are described in terms of quantifiable performance limits which are warranted. NOTE. In these tables, those warranted characteristics that are checked in the procedure Performance Verification appear in boldface type under the column Name.
Warranted Characteristics Table 2–10: Warranted characteristics — Signal acquisition system Name Description Accuracy, DC Gain TDS 600B: ±1.5% for all sensitivities from 2 mV/div to 10 V/div ± 2.
Warranted Characteristics Table 2–10: Warranted characteristics — Signal acquisition system (cont.) Name Analog Bandwidth, DC-50 Coupled and Bandwidth selection is FULL, TDS 500D/700D Description Volts/Div TDS 520D, 540D, 724D & 754D Bandwidth2 TDS 580D & TDS 784D Bandwidth2 10 mV/div – 1 V/div DC – 500 MHz DC – 1 GHz 5 mV/div – 9.95 mV/div DC – 500 MHz DC – 750 MHz 2 mV/div – 4.98 mV/div DC – 500 MHz DC – 600 MHz 1 mV/div – 1.
Warranted Characteristics Table 2–11: Warranted characteristics — Time base system Name Description Accuracy, Long Term Sample Rate and Delay Time TDS 600B: ±100 ppm over any ≥1 ms interval TDS 500D/700D: ±25 ppm over any ≥1 ms interval Table 2–12: Warranted characteristics — Triggering system Name Description Sensitivity, Edge-Type Trigger, Coupling set e to “DC”1 Trigger source Sensitivity Any Channel TDS 620B & 644B: 0.
Warranted Characteristics Table 2–12: Warranted characteristics — Triggering system (Cont.) Name Description Accuracy (Time) for Pulse-Glitch or P l e Wi Tri eri Pulse-Width Triggering Time range Accuracy 1 ns to 500 ns ±(20% of setting + 0.5 ns) 500 ns to 1 s ±(100 ns + 0.01% of Setting) Input Signal Sync Amplitude for Stable Triggering, NTSC and PAL modes (Option 05 Video Trigger) Field selection “Odd”, “Even”, or “All”: 0.
Warranted Characteristics Table 2–14: Warranted characteristics — Environmental Name Description Atmospherics Temperature (no disk in floppy drive): TDS 600B: Operating: +4_ C to +45_ C Floppy disk drive: Operating: +10_ C to +45_ C Nonoperating: –22_ C to +60_ C TDS 500D/700D: Operating: +0_ C to +50_ C Floppy disk drive: Operating: +10_ C to +50_ C Nonoperating: –22_ C to +60_ C Relative humidity (no disk in floppy drive): Operating: 20% to 80%, at or below +32_ C, upper limit derates to 30% relativ
Warranted Characteristics Table 2–14: Warranted characteristics — Environmental (cont.
Warranted Characteristics Table 2–15: Certifications and compliances EC Declaration of Conformity (TDS 500D and TDS 700D) Meets intent of Directive 89/336/EEC for Electromagnetic Compatibility.
Typical Characteristics This subsection contains tables that list the various typical characteristics which describe the TDS 500D, TDS 600B and TDS 700D oscilloscopes. Typical characteristics are described in terms of typical or average performance. Typical characteristics are not warranted.
Typical Characteristics Table 2–16: Typical characteristics — Signal acquisition system (cont.
Typical Characteristics Table 2–16: Typical characteristics — Signal acquisition system (cont.) Name Description Calculated Rise Time, TDS 500D/700D2 Volts/Div setting 520D, 540D, 724D, & 754D Rise time 580D & 784D Rise time 10 mV/div – 1 V/div 800 ps 400 ps 5 mV/div – 9.95 mV/div 800 ps 530 ps 2 mV/div – 4.98 mV/div 800 ps 600 ps 1 mV/div – 1.
Typical Characteristics Table 2–16: Typical characteristics — Signal acquisition system (cont.) Name Description Settling error (%)3 at Step Response Settling Errors Step Response Settling Errors D 794D D TDS l iv setting e i Volts/Div S ep amplitude ampli e ± Step 20 ns 1 mV/div – 100 mV/div ≤2 V ≤0.5% ≤0.2% ≤0.1% 101 mV/div – 1 V/div ≤20 V ≤1.0% ≤0.5% ≤0.2% 1.01 V/div – 10 V/div ≤200 V ≤1.0% ≤0.5% ≤0.2% 10 mV/div – 100 mV/div ≤1.5 V ≤0.5% ≤0.2% ≤0.1% 101 mV/div – 1 V/div ≤3 V ≤1.
Typical Characteristics Table 2–17: Typical characteristics — Triggering system (cont.) Name Description Lowest Frequency for Successful Operation 30 Hz of “Set Level to 50%” Function Sensitivity, Edge Trigger, Not DC Coupled3 Typical signal level for stable triggering Trigger source AC Same as the DC-coupled limits for frequencies above 60 Hz. Attenuates signals below 60 Hz. Noise Reject Three times the DC-coupled limits.
Typical Characteristics Table 2–17: Typical characteristics — Triggering system (cont.) Name Description Setup/Hold Time Violation Trigger, Minimum Clock Pulse Widths For vertical settings > 10 mV/div and ≤ 1 V/div at the BNC input, the minimum requirements are: Minimum Pulse Width, Clock High Minimum Pulse Width, Clock Low User Hold Time + 2.5 ns 9 2 ns Input Signal Sync Amplitude for Stable Triggering, HDTV and FLEXFMT modes (Option 05 Video Trigger) All field selections: 0.
