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

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From: Syed Huq (shuq@cisco.com)
Date: Thu Dec 02 1999 - 13:38:47 PST


Scott,

I have an App note from Quad that takes a coupled connector SPICE model and
converts to an XTK format. I will pass that info to you tomorrow(left it at
home).

Regards,
Syed

>
> 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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