[SI-LIST] SPICE vs IBIS
- From: Lynne Green <lgreen@xxxxxxxxxxx>
- To: viral@xxxxxxxxxxxxxxx
- Date: Tue, 28 Aug 2001 15:34:35 -0700
Lots of articles published on this one! They all agree on a
few common points (but disagree on others).
Basically, use the models your vendors will stand behind.
If they have validated the models at 600 MHz, then use them.
If they haven't validated their model, whether they are SPICE
or IBIS, be careful. IBIS can be as (or more) accurate if the
models are made and used correctly.
Use SPICE if you can afford the simulation time, and the models
are trustworthy. SPICE is needed if you want to do Monte Carlo
statistics or use analog components (such as PLLs).
Use IBIS if you need results quickly, and the models are
trustworthy. IBIS allows quick checking of min/typ/max signal
characteristics. Most signal integrity simulators are optimized
around IBIS models, for constraint checking, as well as for fast
simulation.
- Lynne
lgreen@xxxxxxxxxxx
From: "Viral" <viral@xxxxxxxxxxxxxxx>
Subject: [SI-LIST] SPICE vs IBIS
Date: Tue, 28 Aug 2001 09:16:59 +0530
Hello!! All,
I am new to the field of PCB designing and SI analysis.
I would like to know the difference between SPICE model and IBIS models.
I have to perform SI analysis for signals of order of 600 MHz.
So I would like to know more about the models and which should be preferred
and why.
Thanking You,
Regards,
Viral
Viral S. Shah
Paxonet Communications India Pvt. Ltd.
www.paxonet.com
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