Performance Tests
2
Keysight N1911A/1912A Service Guide
39
Test method
1
Capture a train of 10 pulses with very fast rise/fall times.
2
Combine the sample data to create an equivalent pulse with 10 unit of the
sample resolution of the DUT.
3
Analyze the equivalent pulse to determine the 10% and 90% voltage levels of
the risign/falling edges.
4
Analyze the equivalent pulse to determine when the 10% and 90% crossover
points occur for both edges.
5
Using the times obtained for the 10% & 90% crossovers, the N7832A software
will calculate the rise/fall time performance of the DUT.
NOTE
For rear panel options, the connections will differ from the illustration shown
here. Refer to the connector identification markings on the rear panel for further
details.
NOTE
– Only 1 cable is required if the DUT is an N1911A.
– This test cannot be performed manually, due to the complexity of the pulse
analysis algorithm.
– No adjustment is available for this test if it fails (see
Chapter 4,
"Troubleshooting Guide"
).
