Performance Verification
VX4792 User Manual
F-37
c. Check external trigger level accuracy:
H Gradually decrease the function generator offset level until a
waveform is displayed on the oscilloscope.
H Check that that the function generator offset level is between
–1.15 V and –0.85 V, when the waveform is first displayed.
5. End procedure: Turn off the function generator output and disconnect the
function generator.
External CLOCK INPUT Check
This procedure checks the VX4792 Arbitrary Waveform Generator response to
an external CLOCK INPUT signal.
Electrical Characteristic Checked: Auxiliary Inputs, Clock, Threshold level,
on page E–6.
Equipment Required: Two 50 coaxial cables, a function generator, and an
oscilloscope.
Prerequisites: The instrument must meet the prerequisites listed on page F–3.
Procedure:
1. Install test setup and set test equipment controls (see Figure F–18):
VX4792
Oscilloscope
WAVEFORM
OUTPUT
Ch 1 Input
Function
Generator
Output
CLOCK
INPUT
Figure F-18: External CLOCK INPUT Initial Test Setup
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