[SI-LIST] FW: How to add parellel terminator in IBIS




If you are talking about a single ended line with termination, then just
putting it into the CLAMP is the right thing (and the CLAMP really is a
termination also, by the way). If you are trying to do a differential
termination, it becomes different, then you are essentially making a series
device. Not sure if IBIS can do this but I think most of the simulator tools
can handle it natively.

jon


-----Original Message-----
From: si-list-bounce@xxxxxxxxxxxxx
[mailto:si-list-bounce@xxxxxxxxxxxxx]On Behalf Of Pang Ning (Peter)
Sent: Wednesday, March 26, 2003 12:26 AM
To: si-list@xxxxxxxxxxxxx
Subject: [SI-LIST] How to add parellel terminator in IBIS


Dear all,

Does anybody know how to add parellel terminator (on die terminator) in IBIS
model ?  If the terminator is included in V/I table of Pullup & Pulldown in
IBIS, some simulation tools will discard the V/I data when the IBIS acts as
receiver.  I have attempted to simulate this case with Sigrity's tool, but I
can't see the effect of parellel terminator.  Should I directly add "Rgnd &
Rpower" in IBIS to fulfill the terminator function when the IBIS is
receiver? I tried, but it doesn't work either. Does anyone know how to do it
? Thanks.

Best regards,

Peter Pang
03/26/2003



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