Double Pulse Performance Test; Test Setup 2 - HP 8112A Operating, Programming And Servicing Manual

2
Test Setup
H P 8112A
1 . Connect the HP 81 12A to the oscilloscope as shown in Test
Procedure
2. Set up the HP 8 1 12A as follows:
3. Connect the HP 8 1 12 TRIG OUTPUT via a BNC to S MA
4. Connect the HP 8 1 12 OUTPUT via a BNC to SMA adaptor and
5. Set up the HP 54121 T Oscilloscope
6. Check the HP 81 12A double pulse delay.
7. Record your results on a copy of the Test Record, specified limits
0
0 0
Figure 8-4. Double Pulse Performance Test
Setup 1
Input Mode
Control Mode
Transition
DEL
HIL
LOL
adaptor and a 20 dB attenuator, to the TRIG Input of the HP
54121A.
a 20 dB attenuator, to Input 4 of the oscilloscope.
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.
are given here and on the Test Record.
C o u n t e r (H P 5 33 5A)
NORM
Off
Fixed
65 ns
v
1 .00
v
- 1 .00
as
follows:
Testing Performance 8-7