Tektronix DG2040 User Manual page 229

Appendix B: Performance Verification
B 36
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Setup. Set the oscilloscope as indicated below:
H Oscilloscope
Displayed channel
Vertical axis . . . . .
Horizontal axis . . .
Record length . . . .
Acquire mode . . . .
Acquire sequence
Vertical offset . . . .
Trigger mode . . . .
Trigger level . . . . .
Trigger source . . . .
Trigger slope . . . . .
Trigger position
Trigger coupling
Display . . . . . . . . .
Input coupling . . . .
Input impedance
Procedure. Follow the steps below to verify the clock output amplitude accuracy:
1. Load the TP9PULSE.PDA test pattern file from the performance check
disk.
2. Press the following buttons to set the DG2040 Data Generator high and low
voltage levels.
Menu button Bottom button
SETUP Level Condition
Move the cursor to CLK with the general purpose knob.
3. Adjust the trigger level and vertical scale settings to get trace on the
oscilloscope. Perform the measurement under the low and high voltage
settings shown in Table B-7 and verify that the peak-to-peak amplitude for
each voltage setting is within the specified range.
CH1 and CH2
100 mV/div for CH1 and CH2
200 ns/div
500
Average 32
. RUN/STOP button only
–1 V
Norm
–200 mV
CH2
Rising Edge
. . 50 %
. . DC
Vectors
DC
50 W for CH1 and CH2
. .
Pop up menu Side button
High
Low
Front panel
button
-0.875
ENTER
-1.125
ENTER
DG2040 Data Generator