
Synchronization 7 Analog Modules
System Reference, January 2001
257
Figure 121 Trigger Signal Edge Placement when TRGL Is Set to Zero
In addition, to compensate the signal line length, which is
between the analog pogo pin and DUT pin, you may want
to move the edge location of the trigger signal forward by a
signal line length for the case of the digitizer. You will need
to inform the system of the signal line length by using the
SIGL firmware command. If you do not use the SIGL
command, the start timing of the analog module will be off
the desired timing by the signal line length.
Trigger edge setting
Trigger
@digital pin
Trigger
@trigger input pin
of analog module
Trigger line length
se2
Analog signal measurement
@analog module pogo pin
Trigger-to-signal delay
Tester period
Tester period
Beginning of
Tester Period
TRGL = 0
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