[SI-LIST] [SI-LIST]: Dj ISI computation from S21 Insertion loss

  • From: Vinod <ah.vinod@xxxxxxxxx>
  • To: si-list@xxxxxxxxxxxxx
  • Date: Wed, 11 Dec 2019 12:16:06 +0530

Hi All,
I am having a PCB micro-strip channel with no discontinuities, just PCB
loss of 15dB @ 2.5GHz. S21 (dB) plot is rolling down linearly as frequency
increases.

Is there a way to compute Deterministic jitter Dj (ISI in this case as
there is no reflection or cross-talk or DCD) without simulating for single
bit response?

For example, seeing S21 (dB) plot of channel, can we say Dj is 0.25UI i.e.
channel loss alone generates 0.25UI Dj?

Regards
Vinod A H


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