Re: [IBIS-Users] Simplified model for receiver

Subject: Re: [IBIS-Users] Simplified model for receiver
From: Perry Qu (Perry.Qu@alcatel.com)
Date: Thu Aug 15 2002 - 11:04:17 PDT

Andy,

Thanks for your reply. Maybe I did not make myself clear in the previous email. Yes, I don't think there is anything wrong with the IBIS driver model. It works just fine in XTK. However, in HSPICE, when I tested the IBIS driver model by connecting the driver to termination
directly, without SPICE receiver, I got wierd waveform with higher than normal voltage swing and faster edges.

And I do include all the options in the B_element.

Regards

Perry

"Ingraham, Andrew" wrote:

> I am puzzled why you think the fault is with the IBIS model.
>
> I think you said the simulation looks good with the IBIS driver model in XTK, or with just the IBIS driver model in HSPICE; but that it misbehaves when you add the HSPICE receiver model. That would seem to indicate that something may be wrong with the HSPICE receiver model.
>
> Is it an encrypted model?
>
> Are there any SCALE or SCALM options anywhere?
>
> In the IBIS models in HSPICE, make sure to include all nodes in your B-elements, do not omit the "optional" ones. They aren't really optional, if you want correct behavior.
>
> Regards,
> Andy
>
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--
Perry Qu

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