To Capture The Waveform Of A Glitch - HP 16501A User Manual

To capture the waveform of a glitch

The following setup uses the triggering capability of the timing analyzer and
the acquisition capability of the oscilloscope.
Select the Intermodule Menu.
1
Select the timing analyzer from the Modules list and set it to Group
2
Run. Select the oscilloscope module and set it to respond to the arm
signal from the timing analyzer.
Select the timing analyzer module.
3
Select the Trigger menu, and within the menu, select an Edge term.
4
Assign glitch detection "*" to the channel of interest represented by
5
the Edge term.
This will usually be the same channel monitored by the oscilloscope.
Select the oscilloscope Trigger menu, and set Mode to Immediate.
6
Select the Group Run field in the upper right corner.
7
If you have trouble capturing the glitch waveform on the oscilloscope, try
adjusting the skew in the Intermodule menu, so the oscilloscope triggers
earlier.
A timing analyzer can trigger on a glitch and capture it, but a timing analyzer
doesn't have the voltage or timing resolution to display the glitch in detail. An
oscilloscope can display a glitch waveform with fine resolution, but cannot
trigger on glitches, combinations of glitches, or sophisticated patterns involving
many channels.
Intermodule Measurements
To capture the waveform of a glitch
2–15