[SI-LIST] Re: IBIS warning
- From: "Lynne D. Green" <lgreen22@xxxxxxxxxxxxxx>
- To: "'Susan George'" <sus_geo78@xxxxxxxxx>
- Date: Fri, 5 Dec 2008 14:59:47 -0800
Hello, Susan,
Not sure if others have answered your question yet. The answer is almost
always "this is a problem".
The simple fix is to add points to [both] clamp tables with 0.00A at 0.00V,
and additional 0A points out to 2*Vcc. This forces correct
interpolation/extrapolation by all tools. The only exception is when there
is already data in the table in the range 0-2Vcc, in which case one should
try to understand why the current is not 0A at the reference voltage for
that table.
Feel free to suggest to your model provider that they submit their IBIS
file to the IBIS Model Review Committee for comment
(http://www.eigroup.org/ibis/support.htm).
Best regards,
Lynne
"IBIS training when you need it, where you need it."
Dr. Lynne Green
Green Streak Programs
http://www.greenstreakprograms.com
425-788-0412
lgreen22@xxxxxxxxxxxxxx
-----Original Message-----
From: si-list-bounce@xxxxxxxxxxxxx [mailto:si-list-bounce@xxxxxxxxxxxxx] On
Behalf Of Susan George
Sent: Friday, November 14, 2008 3:23 PM
To: si-list@xxxxxxxxxxxxx
Subject: [SI-LIST] IBIS warning
Hi all,
Is it ok to have IBIS warning "“POWER Clamp : Typical value never
becomes zero”.
If not, how do we fix this.Please advise.
Thanks
SJ
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