Agilent Technologies 93000 SOC Series - Page 150

Lesson 3 – Synchronization of Analog Modules
150
Delay Factors
•
Trigger-to-signal delay in the analog module
• Propagation delay of the trigger line between the related digital
pin and trigger input pin of the analog module (trigger line delay)
• Propagation delay of the signal line between the analog module pin
and the related DUT pin (signal line delay)
From these delay factors, the edge location of the trigger signal
that you should set in the timing setup is decided. The following
figure is the timing chart for the trigger signal and analog module
operation.
Timing Chart and Delay Factors
Digital
pin
Digital Channel
Board
Analog Module
Board
Trigger
input
Analog
pogo pin
DUT
DUT Board
Test Head
(Side View)
Trigger line length Analog signal line
length
Trigger-to-signal
delay
Trigger Signal @digital pin
Trigger Signal @trigger input
pin of analog module
Measurement start @signal
pin of analog module
Analog signal to be measured
@signal pin of analog module
Analog signal to be measured
@DUT pin
Propagation delay of trigger line
Trigger-to-signal delay
Propagation delay of signal line