[ibis-macro] Re: A new BIRD draft has been posted on the ATM reflector
- From: "Muranyi, Arpad" <Arpad_Muranyi@xxxxxxxxxx>
- To: IBIS-ATM <ibis-macro@xxxxxxxxxxxxx>
- Date: Tue, 1 May 2012 02:22:01 +0000
I have a question about this BIRD proposal.
In all the discussions on this topic, I can't remember
if we ever addressed the boundary conditions of the
power terminals of the [External Model] keyword. As
far as I remember, with all this ideal isolation unity
amplifier discussions we were only talking about the
data path.
I wonder if we should also say something about the power
terminals. I can see two scenarios.
When the EDA tool provides an internal power source, it is
most likely an ideal source with a zero Ohm impedance.
But what happens if the power terminals of the [External
Model] is brought out to the pin through the package model?
That is not going to be anything like a zero Ohm ideal source.
Now what is the Touchstone model maker supposed to do when
they are making an S-parameter model that is also connected
to the power terminals of [External Circuit]?
Comments, suggestions welcome...
Thanks,
Arpad
============================================================
-----Original Message-----
From: ibis-macro-bounce@xxxxxxxxxxxxx [mailto:ibis-macro-bounce@xxxxxxxxxxxxx]
On Behalf Of Muranyi, Arpad
Sent: Wednesday, April 25, 2012 11:16 AM
To: IBIS-ATM
Subject: [ibis-macro] A new BIRD draft has been posted on the ATM reflector
Hello everyone,
This is to inform all of you that a new BIRD draft has been
posted on the ATM website on the topic of analog model
boundaries.
http://www.vhdl.org/pub/ibis/macromodel_wip/archive/20120423/arpadmuranyi/Analog%20Model%20Boundary%20Definition%20BIRD%20draft%201/AnalogBoundary_BIRD_draft1.pdf
This BIRD draft has been introduced in the last ATM
teleconference (yesterday), and I would like to
solicit for comments and suggestions on it from all
of you.
Thanks in advance,
Arpad
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