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Measuring ISI jitter using the channel simulator

Question asked by mmccarn on Jan 6, 2015
Latest reply on Jan 7, 2015 by RUCKB
I am trying to find the amount of inter symbol interference jitter contributed to a system from a channel using ADS channel simulator. I have a simple setup shown in the attachment, where I'm using pass-through Tx and Rx IBIS AMI models with a channel represented by S parameter models. The input sequence for the bit by bit mode is the modified RPAT. There is no jitter added using the Tx IBIS AMI parameters, so I would expect all the jitter measured to be the ISI contribution from the channel, however in the JitterPP measurement and density plot, shown in the attachment, it appears that there is no jitter.

Has anyone run into this problem, and can you tell me why I am not able to measure ISI using this method?  

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