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Appendix B: Performance Verification
BĆ36
DG2040 Data Generator
Setup.
Set the oscilloscope as indicated below:
H
Oscilloscope
Displayed channel
CH1 and CH2
Vertical axis
100 mV/div for CH1 and CH2
. . . . .
Horizontal axis
200 ns/div
. . .
Record length
500
. . . .
Acquire mode
Average 32
. . . .
Acquire sequence
RUN/STOP button only
.
Vertical offset
–1 V
. . . .
Trigger mode
Norm
. . . .
Trigger level
–200 mV
. . . . .
Trigger source
CH2
. . . .
Trigger slope
Rising Edge
. . . . .
Trigger position
50 %
. .
Trigger coupling
DC
. .
Display
Vectors
. . . . . . . . .
Input coupling
DC
. . . .
Input impedance
50
W
for CH1 and CH2
. .
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.
Menubutton
Bottom button
Pop up menu
Side button
Front panel
button
SETUP
Level Condition
Move the cursor to CLK with the general purpose knob.
High
-0.875
ENTER
Low
-1.125
ENTER
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.
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