Pod Threshold Field - HP 16550A User Reference

100-mhz state/500-mhz timing logic analyzer
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Pod Threshold Field
Pod Threshold Field
The pod threshold field is used to set a voltage level which the data must
reach before the analyzer recognizes and displays it as a change
in
logic
levels. You specify a threshold level for each pod
in
a pod pair. The level
specified for each pod is also assigned to the pods clock threshold.
When the Pod Threshold field is touched, a threshold selection pop-up
appears with the following choices:
TTL
When TTL is selected as the threshold level, the data signals must reach +1.5
volts.
ECL
When ECL is selected as the threshold level, the data signals must reach -1.3
volts.
4-19
I

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