Spice to IBIS conversion - 25 ohmns vs. 50 ohms

What is the ramifications of creating an IBIS model from a SPICE deck
setup into a 25 ohm load vs. a 50 ohm load.
My contractor that is doing the work claims that the Waveform doesn't look
right going into 50 ohms (which is what the IC manufacture claim is the
test load) but looks better going into 25 ohms.
What does this mean to me?
Possible incorrect AC parameters?
What?

Thanks in advance,
Stacy
 
Received on Thu Mar 22 11:37:21 2001