Re: [SI-LIST] : FW: Spectraquest Vs. XTK/XNS

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From: Jim Freeman ([email protected])
Date: Mon Oct 02 2000 - 18:52:40 PDT


The problem is that the Hspice models are using the M format.

Jim Freeman

Donald Telian wrote:

> John,
>
> Answers for SPECCTRAQuest are below.
>
> Thanks for asking,
> Donald T.
> CADENCE
>
> At 01:48 PM 9/25/00 -0400, May, John wrote:
> >
> >
> >> -----Original Message-----
> >> From: May, John
> >> Sent: Monday, September 25, 2000 1:20 PM
> >> To: '[email protected]'
> >> Subject: Spectraquest Vs. XTK/XNS
> >>
> >> Hi all - My group is looking into purchasing one of these tool suites for
> >> SI analysis. I'm wondering what the tradeoffs and limitations of each are.
> >> For instance:
> >>
> >> 1) Can botth suites handle HSPICE models in a mixed environment with IBIS
> >> models?
> >>
>
> SPECCTRAQuest uses an optimized spice engine for analysis. As such, all
> types of spice models can be used with the exception of transistor-based
> models (M elements). Naturally, IBIS models can be used as well. If you
> want to use both IBIS and transistor-level IO models, we have a netlist
> converter that will translate our proprietary spice netlist (extracted from
> PCB layouts or topology drawings) into a variety of other spice formats.
>
> >> 2) Do either of the tools have trouble with differential inputs(high and
> >> low inputs used with a differential receiver)?
> >>
>
> SPECCTRAQuest has support for differential drivers and receivers.
>
> >> 3) Connector stitching: How easy is it to use these tools for going
> >> through connectors to model paths that traverse multiple modules?
> >>
>
> It is quite simple to join multiple board layout files together in
> SPECCTRAQuest for simulation. And that includes package layout (.mcm)
> files as well. A variety of connector or cable models can be easily placed
> between the boards. The simplest being RLC or RLGC representations, but
> fully-coupled connector models can also be integrated into the simulation.
> This normally requires some re-formatting of the data from the connector
> vendor, but it is not too hard to do assuming you understand how to build
> and call spice subcircuits.
>
> >> John
> >
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> >
> >
> >
> Donald Telian
> Cadence Design Systems
> phone: 408-944-7791
> [email protected]
>
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