Tektronix, Inc. DG2040, User Manual

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Appendix B: Performance Verification
BĆ24
DG2040 Data Generator
Setup.
Set the oscilloscope and AFG320 Function Generator as indicated below:
H
Oscilloscope
Displayed channel CH1 and CH2
Vertical axis 1 V/div for CH1 and CH2 . . . . .
5 V/div for CH3 and CH4
Horizontal axis 5.00 ns/div . . .
Record length 15000 . . . .
Acquire mode Peak Detect . . . .
Acquire sequence RUN/STOP button only .
Trigger mode Auto . . . .
Trigger level 2 V . . . . .
Trigger source CH3 . . . .
Trigger slope Falling Edge . . . . .
Trigger position 50 % . .
Input coupling DC . . . .
Input impedance 50
W
for CH1 and CH2 . .
1 M
W
for CH3 and CH4
InstaVu Infinite Persistence . . . . . . . . .
H
Function generator
Output channel CH1 . . .
Waveform Square wave . . . . . . .
Frequency 500 Hz . . . . . . .
Amplitude 1 V (50
W
termination) . . . . . . .
Offset 500 mV . . . . . . . . . .
Procedure.
Follow the steps below to verify that the maximum operating
frequency (trigger operation) is functioning correctly.
1. Load the TP5TRIG.PDA test pattern file from the performance check disk.
2. Press the START/STOP button on the front panel. The LED, corresponding
to the button, should be on.
3. Verify that a stable data pattern as shown in Figure B-12 appears on the
oscilloscope screen.
4. Change the oscilloscope trigger source to CH4 and trigger slope to Rising
Edge.
5. Verify that a stable data pattern as shown in Figure B-13 appears on the
oscilloscope screen.
6. Press the START/STOP button on the front panel to stop output (the buttons
LED goes off).