[SI-LIST] Re: Modeling Connectors and Relays
- From: "Zanella, Fabrizio" <fzanella@xxxxxxxxxxxxx>
- To: <yang.you@xxxxxx>, <si-list@xxxxxxxxxxxxx>
- Date: Wed, 6 Jul 2005 15:16:49 -0400
Yang, I'll try to answer most of your questions.
Spice models for most connectors are available from the vendor web pages
or contact the vendor, they should have LCR single line or coupled line
models available. You can also create models from TDR measurements,
your best bet is to use the TDA Systems tool,
http://www.tdasystems.com/.
For most ICs you should be able to obtain IBIS models from the vendor
web page. See http://www.eigroup.org/ibis/, the IBIS home page, for a
list of vendors which have IBIS models on their web pages.
And yes, you should create a library of models for connectors, ICs to
use in your simulations. =20
There are several consulting companies which can create models or
simulating services for you; companies which come to mind with are=20
NESA http://www.nesa.com/
Bayside Design Services http://www.baysidedesign.com/
Teraspeed Consulting http://www.teraspeed.com/
Regards, Fabrizio Zanella
Signal Integrity
Enterasys Networks
-----Original Message-----
From: si-list-bounce@xxxxxxxxxxxxx [mailto:si-list-bounce@xxxxxxxxxxxxx]
On Behalf Of You, Yang
Sent: Tuesday, July 05, 2005 4:25 PM
To: si-list@xxxxxxxxxxxxx
Subject: [SI-LIST] Modeling Connectors and Relays
Hi,
=20
I'm just getting started working with SI simulations for
PCBs and I'd like to know how to obtain models for connectors and relays
from the lab. How would I model the parasitic and impedance
characteristics of connectors and relays and what laboratory
equipment/methodology would I use?
What are some of your experiences obtaining models for use
in your circuit simulations such as models of ICs? How hard has it been
to work with the vendors to obtain some of these models and how much of
your own resources were needed to obtain models that weren't readily
available from the vendor?=20
Do you try to compile a library of models of commonly used components or
just go look for new models as needed? Are there any consulting
companies you recommend that provide a fairly comprehensive, accurate
and reasonably priced library of models or provide modeling services?
Thanks for all your help.
=20
Yang You
=20
Texas Instruments, Inc.
=20
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=20
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