Re: [SI-LIST] : Anyone doing SI simulations for Pentium

Shahar Bar (ShaharB@ami.com)
Fri, 10 Sep 1999 10:42:55 -0400

Hi everyone,

I am fairly new to signal integrity simulation, so forgive me if my amateur
inqueries. I use Viewlogic's XTK software for crosstalk simulation (it
compiles IBIS files for all models). I am trying to model a set of active
SCSI terminator in order to analyze a set of differential LVD SCSI signals
(at speeds of up to Ultra3, ie 160Mb/s). I contacted Unitrode and Dallas
but neither could supply me with the appropriate models. How should I go
about modeling these terminators. The IBIS spec was vague about describing
differential signals, what I have done in the past is treat the signals as
single ended models, but this is not a realistic scenario at Ultra-3 speeds.

Any help would be appreciated....

Thank you,

Shahar Bar
Hardware Engineer
American Megatrends, Inc.
6145-F Northbelt Parkway
Norcross, GA 30071-2976
Direct: (770)246-8600 ext. 7125
Fax: (770)246-8765

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