Test Setup
2
Procedure
H P 8112A
0
0
0
Counter
(H P 5 33 5A)
Figure 8-4. Double Pulse Performance Test
1 . Connect the HP 81 12A to the oscilloscope as shown in Test
Setup 1
2. Set up the HP 81 12A as follows:
Input Mode
Control Mode
Transition
DEL
HIL
LOL
NORM
Off
Fixed
65 ns
1 .00
v
- 1 .00
v
3. Connect the HP 8 1 12 TRIG OUTPUT via a BNC to SMA
adaptor and a 20 dB attenuator, to the TRIG Input of the HP
54121A.
4. Connect the HP 8 1 12 OUTPUT via a BNC to SMA adaptor and
a 20 dB attenuator, to Input 4 of the oscilloscope.
5. Set up the HP 54121 T Oscilloscope
as
follows:
a. Press AUTOSCALE.
b. Select the Display menu and set the Number of Averages to
64.
c. Select the delta V menu and turn the voltage markers On.
d. Set Preset Levels = 50-50% and press Auto Level Set.
e. Select the delta t menu and turn the time markers On.
f. Set START ON EDGE = POSl and STOP ON EDGE =
POS2.
g. Press the Precise Edge Find key for each new Double setting.
6. Check the HP 81 12A double pulse delay.
7. Record your results on a copy of the Test Record, specified limits
are given here and on the Test Record.
Testing Performance 8-7
Summary of Contents for 8112A
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