Re: [SI-LIST] : XTK multiboard simulation using amp spice connector models....... ..

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From: Scott McMorrow (scott@vasthorizons.com)
Date: Thu Dec 02 1999 - 13:05:53 PST


Syed,

Does this also work with coupled MLM connector models. It seems
to me that in this case a lumped LC is not enough.

I also do not believe that XTK will handle the non-ideal return paths
correctly, will it? Nor the noise induced into ground and power pins.

regards,

scott

Syed Huq wrote:

> Michael,
>
> This multi-board sim is quite easy to setup in XTK. You can use TOPSPEC to
> define any connector via a lumped LC.(See example in Ch6 of 'Preparing PCB
> database for simulation with TLC/XTK/QUIET' or Ch7 of XTK users manual)
>
> Then use a hdf and con file to define the hierarchy of boards connecting
> to each other and the 'mapping' of the connections(con file). This con file
> describes how the nets get tied across the connector.(See examples in Ch7 of
> 'Preparing PCB database for simulation with TLC/XTK/QUIET').
>
> Then follow the translation process and it's a piece of cake.
>
> % tmp -hdf <design>.hdf
> % isf2xtk -hdf <design>.hdf
>
> Regards,
> Syed
> Cisco Systems, Inc
>
> >
> > Hello SI List,
> >
> > I am continuing my investigation of XTK and have run into
> > a bit of a road block that I thought you might be able to help me with.
> > I have a desire to perform a multi-board system simulation where my
> > board to board interconnect is a standard 2 mm HM connector that
> > is used and supported by lots of folks. I have an AMP MLM for the
> > connector and would prefer not to fill my day modifying spice decks.
> > My feedback from folks to date has been that 'ya can't get there from
> > here', unless of course I would like to re-write the model myself for
> > use within XTK.
> >
> > I know that alot of folks in telecom are using this connector
> > and are probably using XTK. What are my options? Any good?
> > Thanks for the help.
> >
> > Best Regards,
> >
> > Michael Greim
>
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--
Scott McMorrow
Principal Engineer
SiQual, Signal Quality Engineering
18735 SW Boones Ferry Road
Tualatin, OR  97062-3090
(503) 885-1231
http://www.siqual.com


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