FreeLists / si-list / [SI-LIST] Re: Specctraquest Multiboard

["Carlos Moll" <cmoll@xxxxxxxxxxx>]

Lucas,

For Package models.....

Single Line Circuits is a required subparameter for Circuit Models =
keyword
        this option must describe a single subcircuit model for each pin (ex. =
supports Reflection).=20
Coupled Line Circuits is an optional subparameter for Circuit Models =
keyword
        this option will describe the coupling and support the coupling window =
as defined in the preferences section (ex. supports Crosstalk, =
Comprehensive).

You can use either Single Line or Both (Single Line + Coupled line) but =
Not Coupled Line Circuits subparameter standalone.
Note when using keyword Coupled Line Circuits, any RLGC keyword =
definition specified as part of package model is ignored.

You may find some examples in your cadence install =
directory/share/pcb/signal directory (cds_packages.dml)

There is also other options (block circuits, etc.), if you want to get =
more details, I would suggest to start a thread in specctraquest.com.

Hope this helps.

Carlos Moll
Cadence Design Systems, Inc.



-----Original Message-----
From: Lucas Bossetti [mailto:Lucas_Bossetti@xxxxxxxxxxx]
Sent: Saturday, July 13, 2002 7:40 AM
To: si-list@xxxxxxxxxxxxx
Subject: [SI-LIST] Specctraquest Multiboard


Hi,
I'm setting up a multiboard simulation in Specctraquest.
The 2 boards (same .brd) are connected with 2 connectors and a cable.
The connectors models are IbisDevice with a spice subcircuit in=20
a Package model and a DesignLink connect the 2 boards.
If I assign a "SingleLineCircuits" spice model the simulation works =
well. (reflection)
Problems occour when I try to assign  a "CoupledLineCircuits" to the  =
Package model. (needed for comprehnsive and crosstalk simulation)
If I assign only Coupledlinecircuits the 2 boards seems like disconnect.
Have I to assign both SingleLineCircuits and CuopledLineCircuits?
If so, how they're used? (singleline for reflection and coupled for =
comprehnsive and crosstalk simulation?)
SQ reference manual asserts that Sub-parameter SingleLineCircuits is =
REQUIRED in defining CircuitModels; Why? Isn't "SingleLine" model =
embedded in multi-line model?
=20
Any suggestion or comment about this topic will be appreciate.

Thanks and regards=20
Lucas=20





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