[SI-LIST] Re: Channel deterministic jitter
- From: "Yuriy Shlepnev" <shlepnev@xxxxxxxxxxxxx>
- To: <istvan.novak@xxxxxxxxxxx>, <ralph.wilson@xxxxxxxxxxxxxxxxxx>, <si-list@xxxxxxxxxxxxx>
- Date: Mon, 30 Mar 2015 12:46:34 -0700
Hi Istvan,
Do you know if someone analyzed limitation and accuracy the Peak Distortion
Analysis? Comparing it to the recursive convolution for instance (exact
solution for pricewise linear signals).
Best regards,
Yuriy
Yuriy Shlepnev, Ph.D.
President, Simberian Inc.
3030 S Torrey Pines Dr. Las Vegas, NV 89146, USA
Office +1-702-876-2882; Fax +1-702-482-7903
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-----Original Message-----
From: si-list-bounce@xxxxxxxxxxxxx [mailto:si-list-bounce@xxxxxxxxxxxxx] On
Behalf Of Istvan Novak
Sent: Monday, March 30, 2015 5:50 AM
To: ralph.wilson@xxxxxxxxxxxxxxxxxx; si-list@xxxxxxxxxxxxx
Subject: [SI-LIST] Re: Channel deterministic jitter
Ralph,
Yes, it is all doable. You start from the Impulse response (simulated, or
obtained from your S parameters), calculate the Pulse response and finally
the Peak Distortion Analysis eye. Among others, it gives you the passive
channel deterministic jitter. Most commercial tools will do this one way or
the other, but the process is simple enough that in my training courses I
demonstrate it with Excel macros.
Regards,
Istvan Novak
Oracle
On 3/30/2015 8:33 AM, Ralph Wilson wrote:
> Ignoring for this discussion the active Tx / Rx components of a (high
> speed
> SERDES) channel, and considering only the copper routing (including
> vias) and passive elements (DC blocking caps)........
>
> Can one calculate, quantitatively, the deterministic jitter of a
> channel using its step/impulse response? and/or from the channel's
> S-parameters?
>
> Let's be more specific -
>
> I would expect one could/should be able to quantify the uncorrelated
> bounded high probability jitter from the step/impulse response, hence
> from the S-parameters.
>
> I'm not sure if the correlated bounded high probability jitter could
> be determined from such. Can it?
>
> I would expect the periodic, sinusoidal, and duty cycle distortion
> contributions due to the copper/passives to be zero, so not pertinent
> to this discussion.
>
> Can anyone point me to any papers or presentations that address this?
> More importantly are there any tools out there that do this?
> Or, am I all wet?
>
> Thanks,
> Ralph Wilson
>
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