[SI-LIST] AW: IBIS-AMI Simulation produces split eye diagram
- From: "Havermann, Gert" <Gert.Havermann@xxxxxxxxxxx>
- To: Ravinder.Ajmani@xxxxxxxxxxxxxx, si-list@xxxxxxxxxxxxx
- Date: Wed, 5 Jan 2011 09:35:33 +0100
Hi Ravinder,
the split eye could be caused by reflections. The reflections with Short traces
tends to look like Jitter, but with longer the traces, the eye will start to
split up.
BR
Gert
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Von: si-list-bounce@xxxxxxxxxxxxx [mailto:si-list-bounce@xxxxxxxxxxxxx] Im
Auftrag von Ravinder.Ajmani@xxxxxxxxxxxxxx
Gesendet: Mittwoch, 5. Januar 2011 05:33
An: si-list@xxxxxxxxxxxxx
Betreff: [SI-LIST] IBIS-AMI Simulation produces split eye diagram
Hi All,
I am using Cadence PCB-SI simulator for running IBIS-AMI Channel simulation on
a Serial interface. The eye diagram generated by the tool is split, with
initial 1/3 part of the eye diagram appearing after the remaining 2/3 part.
This does not happen if the channel length is small
(1 - 2 inches).
I would like to know if anyone else has observed similar phenomenon. I have
taken up this issue with Cadence as well as the IBIS-AMI model vendor. Cadence
response is that this is due to the model issue, whereas the model vendor says
that the model works fine with other simulators.
Thanks for the help.
Regards,
Ravinder Ajmani
Server PCB Development
Hitachi Global Storage Technologies
Email: Ravinder.Ajmani@xxxxxxxxxxxxxx
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