Technical data

Testing U4154A Performance 3
U4154A Logic Analyzer Service Guide 47
Determine PASS/FAIL for the Pulse Generator Frequency test
If you get 100 acquisitions without any error display at a
pulse generator frequency (including uncertainty) greater
than 1250 MHz, then the logic analyzer passes this portion
of the test. For example, a frequency of 1280 MHz - 2%
uncertainty = 1254.4 MHz indicates a PASS result for the
test. Record PASS/FAIL result of this test in the “Pulse
Generator Frequency Test” section of the Performance Test
Record (page 62).
Final pulse generator frequency
If the remaining tests described in this chapter PASS, record
the final pulse generator frequency in the “Final Pulse
Generator Frequency” section of the Performance Test Record
(page 62). Recording this final frequency provides a
traceable measurement that is expected to be unique for
each U4154A Logic Analyzer module.
NOTE
If any of tests described later in this chapter fail, decrease the pulse generator
frequency by 1 MHz and wait for logic analyzer to complete 100 acquisitions at this
new pulse generator frequency without displaying any error. Repeat this step until
you get 100 acquisitions without any error display.