RE: [IBIS-Users] FW: Modelling an open drain driver


Subject: RE: [IBIS-Users] FW: Modelling an open drain driver
From: Ingraham, Andrew (Andrew.Ingraham@hp.com)
Date: Thu Nov 21 2002 - 08:54:05 PST


I wrote:

> For R_fixture, using 60 ohms in parallel with Rpullup, would come
> closer
> to the actual circuit. Unless you intended for Rpullup to be on the
> far
> (receiver) end of the 60 ohm trace.
 
I forgot to say ... you should have a waveform with V_fixture = 0V and
another with V_fixture = Vpullup.

Andy

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