[Fwd: [SI-LIST] : IBIS AND EMC]

Michael Wehmeier (mwehmeier@pad.incases.com)
Wed, 01 Apr 1998 16:00:55 +0200

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Message-ID: <352247B2.94FD8283@pad.incases.com>
Date: Wed, 01 Apr 1998 15:57:06 +0200
From: Michael Wehmeier <mwehmeier@pad.incases.com>
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To: g.rossi@crf.it
Subject: Re: [SI-LIST] : IBIS AND EMC
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Guiseppe,

The purpose of IBIS (Input Output Buffer Information Secification) is to
describe the Input/Output characteristics
through V/I curves without providing information on transistor level (
like SPICE). IBIS models are behavior models for digital ICs for Signal
Integrity and EMC analysis.

> Dear Sirs,
> I have a question about IBIS
> modelling, but please bear in mind that
> the only think about ibis I known is that it is a high
> level modelling of electonic devices;
> So I' m a complete beginner in this field.
>
> The question is:
>
> Do you think IBIS usage is useful for EMC analisys ?

Yes, within a PCB EMC analysis it is a way to describe the electrical
behavior of the connected buffers.If you talk about external
interferences you are speaking in terms of succeptibility. If you do
such kind of simulations with digital nets on a PCB you can use IBIS to
model the buffer influences.

> I mean EMC phenomena due to external interferences
> and not due to Signal Integrity problem.
>
> Where i can find someting ( on the NET) of general like an
> overview to read about IBIS ?
>

You can find IBIS information on http://www.eia.org/eig/ibis/ibis.htm

For EMC-Simulation you can look on http://www.incases.com

> Thank you
>
> Ing. Giuseppe Rossi

Regards

Michael Wehmeier
Application Engineer

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Guiseppe,

The purpose of IBIS (Input Output Buffer Information Secification) is to describe the Input/Output characteristics
through V/I curves without providing information on transistor level ( like SPICE). IBIS models are behavior models for digital ICs for Signal Integrity and EMC analysis.

Dear Sirs,
I have a question about IBIS
modelling, but please bear in mind that
the only think about ibis I known is that it is a high
level modelling of electonic devices;
So I' m a complete beginner in this field.

The question is:

Do you think IBIS usage is useful for EMC analisys ?

Yes, within a PCB EMC analysis it is a way to describe the electrical behavior of the connected buffers.If you talk about external interferences you are speaking in terms of succeptibility. If you do such kind of simulations with digital nets on a PCB you can use IBIS to model the buffer influences.

I mean EMC phenomena due to external interferences
and not due to Signal Integrity problem.

Where i can find someting ( on the NET) of general like an
overview to read about IBIS ?
 

You can find IBIS information on  http://www.eia.org/eig/ibis/ibis.htm

For EMC-Simulation you can look on   http://www.incases.com

Thank you

Ing. Giuseppe Rossi

 
Regards

Michael Wehmeier
Application Engineer --------------9CA33616C112CA3F2ADB72B1-- --------------910D197737BFE0A4266B80E7 Content-Type: text/x-vcard; charset=us-ascii; name="vcard.vcf" Content-Transfer-Encoding: 7bit Content-Description: Card for Michael Wehmeier Content-Disposition: attachment; filename="vcard.vcf" begin: vcard fn: Michael Wehmeier n: Wehmeier;Michael org: INCASES Eng.GmbH adr: Vattmannstr. 3;;;Paderborn;;33100;Germany email;internet: mwehmeier@pad.incases.com tel;work: 05251 150 642 tel;fax: 05251 150 700 x-mozilla-cpt: ;0 x-mozilla-html: FALSE version: 2.1 end: vcard --------------910D197737BFE0A4266B80E7-- --------------C1F928C81C4B17DA1F3F0313 Content-Type: text/x-vcard; charset=us-ascii; name="vcard.vcf" Content-Transfer-Encoding: 7bit Content-Description: Card for Michael Wehmeier Content-Disposition: attachment; filename="vcard.vcf" begin: vcard fn: Michael Wehmeier n: Wehmeier;Michael org: INCASES Eng.GmbH adr: Vattmannstr. 3;;;Paderborn;;33100;Germany email;internet: mwehmeier@pad.incases.com tel;work: 05251 150 642 tel;fax: 05251 150 700 x-mozilla-cpt: ;0 x-mozilla-html: FALSE version: 2.1 end: vcard --------------C1F928C81C4B17DA1F3F0313--