Subject: RE: [IBIS-Users] query to ibis forum
From: Lynne Green (lgreen@cadence.com)
Date: Mon Sep 29 2003 - 09:28:56 PDT
Hello, Kesav,
You can simulate more points (1000-2000 points usually works well) and
then pick the best points based on value of the second derivative (more
points at rapidly changing slope).
This algorithm has been incorporated in a number of tools, including
SpecctraQuest/Model Integrity from Cadence.
Best regards,
Lynne
Dr. Lynne Green
Senior Member of Consulting Staff
Cadence Design Systems, Inc.
"All the world's an analog stage, whereon digital plays bit parts."
Fred Field, Hughes Aircraft
-----Original Message-----
From: kesavp [mailto:kesavp@spikeindia.com]
Sent: Sunday, September 28, 2003 7:55 PM
To: ibis-users@eda.org
Subject: [IBIS-Users] query to ibis forum
Hi IBIS experts,
I am interested to capture part of the VI curve (pullup,pulldown, ground
clamp and power clamp) range in small step size.
S2IBIS tool by default takes 0.05 or 0.1 V step size. I would like to
know does IBIS spec recommends any specific step size.
Could any one please let me know how to go about making VI curves for
small step size other than default value.
Thanks,
Kesav.
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