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HP 81130A/’31A Performance Test
5. RECORD the delta t reading. This is the rise time of the refer-
ence signal within a 1% amplitude window of the signal con-
nected to Input 2. This value is needed later to calculate the
correct jitter. (delta.t.up)
6. Select the Timebase menu and center the second positive-
going edge of the signal
7. Press MORE and HISTOGRAM
•
Select the Window submenu and set:
•
Source is channel 2
•
Choose the Time Histogram
•
Press WINDOW MARKER 1 and set it to 490 mV
•
Press WINDOW MARKER 2 and set it to 500 mV
8. Select the Acquire submenu, set the Number of Samples to
1000 and press START ACQUIRING
9. After the data for the time histogram has been acquired (#
Samples = 100%), select the Result submenu.
10. Press MEAN and SIGMA. RECORD the values of sigma
11. The RMS-jitter is calculated as follows:
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Содержание HP 81130A
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