[SI-LIST] Re: IBIS package R,L,C values

  • From: "Harjeet Randhawa" <harjeet.randhawa@xxxxxxxxxxxxxxxxx>
  • To: <sivagurunathan.mani@xxxxxxxxx>, <si-list@xxxxxxxxxxxxx>
  • Date: Fri, 17 Sep 2004 16:10:33 +0530

The IBIS model file should have these parameters embedded in it.
Specctraquest's Model GUI picks this information from the DML file
itself.

The PIN R, L, C values have priority over the package R,L,C values.
If PIN R,L,C are not specified then I guess the Speectraquest simulator
will take the Package R,L,C values into account.

You can override the Package as well as Pin R, L, C values with your
defined values.
But again these should be in line with the package used.

PS: These R, L, C value are lumped values. For fast edge rate these may
not provide accurate results.=20

Best Regards,
/---------------------------------------------------------/
Harjeet S Randhawa,
Nevis Networks India Pvt. Ltd,
B-101, Bhau Patil Marg,
34, Aundh Road, Pune - 411 020.
Tel: +91-20-403-3900, Xtn:290,
Fax:+91-20-403-3904,
Cell: 0-9890130611.
/--------------------------------------------------------/

-----Original Message-----
From: si-list-bounce@xxxxxxxxxxxxx [mailto:si-list-bounce@xxxxxxxxxxxxx]
On Behalf Of sivagurunathan.mani@xxxxxxxxx
Sent: Friday, September 17, 2004 1:37 PM
To: si-list@xxxxxxxxxxxxx
Subject: [SI-LIST] IBIS package R,L,C values

Hi,

In IBIS model there is package properties where package R,L,C values are
defined. Again in pin declaration for each pin RLC values are specified.
What is the difference ,In specctraquest If we are assigning model as
IBIS devices, And if we apply pin by pin with specified pin model as
like IBIS I/O , IBIS Input etc. Will there be any difference in
simulation results? Will package properties taken in to account ,if do
as per case 2?

 Please help in this regard.

Sivagurunathan.M





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