Re: [SI-LIST] : IBIS models at Gbit speeds

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From: Jim Freeman ([email protected])
Date: Fri Dec 10 1999 - 10:01:30 PST

Hi,
    To my knowledge, Quad and Viewlogic Xtk don't directly use IBIS models. Instead, there is a compiler the linearizes the IBIS models and drastically
reduces the number of points that are used in simulation.

Jim Freeman

Mike Henson wrote:

> Just FYI, if you would like to see IBIS models constructed with quality and
> thoroughness, take a look at models build by Viewlogic/Quad.
>
> Mike H.
>
> _________At 08:28 AM 12/9/99 -0600, Roy Leventhal wrote_________
>
> All,
>
> Mike Mayer's comment doesn't surprise me. And, everyone who has responded sees
> it through their own filter. Some have made comments that relate Mike's
> story to
> simulator capabilities, some relate to how far you can push the IBIS model.
>
> My perception of Mike's comment simply picks up on the low amount of effort
> and
> expense that the model supplier is apparently willing to put into their
> product.
> Apparently, they should be capable of better. This slipshod work is a
> lamentable
> human trait which is very common. Before you think me too pure, I have slipped
> into it on occasion myself.
>
> My problem is how very common such slipshod work is in the models I have seen,
> and not just IBIS.
>
> It's rare (but, not unheard of) that I have seen evidence that my model
> suppliers take pride in delighting the customer.
>
> Regards,
>
> Roy
>
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