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Note
3.24
Testing the HP g114A
HP 8114A set up the OUTPUT page as shown in the
3. On the
following illustration:
1.00 lls
50.0 I-IS Basclne +0.00 v
Width
i n t o
Configuring the Output Page
4. Set the Digitizing Oscilloscope HP 54121T:
Press (AUTOSCALE)
n
Select the Display menu and set the Number of Averages to 64
n
Select the Timebase menu and set the TIME/DIV to 100 ps/div
n
Delay = 98.5 ns)
5 . Press m and (M]
6. Select the Window submenu and press
it to 980 mV
7.
(
Press
WINDOW MARKER
8. Select the Acquire submenu, set the Number of Samples to 1000
and press
ACQUIRING
9. After the data for the time histogram has been acquired (#
Samples = lOO%), select the Result submenu
10. Press (MEAN) and [SIGMA). RECORD the values of sigma
11. The RMS-jitter is calculated as follows:
R M S - j i t t e r =
12. The RMS-jitter for delay of 50 ns is 50 ps. Enter the result in the
Test Report as TR entry 5.3 - 1
13. Set HP 8114A for delay of 500 ns
14. Repeat steps 9 to 12
15. The RMS jitter for delay of 500 ns is 175 ps. Enter the result in
the Test Report as TR entry 5.3 - 2
Inh OFF f
Positive I
[
WINDOW MARKER
and set it to 1 V
)
6
and set
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Troubleshooting
