Re: output impedance of a driver

Hi all:
Morning!
I am trying to obtain the output impedance of a driver, so that I can
match the driver with a transmission line and proper termination.
The way that I have tried is I used the IBIS model and then translate
the model into QUAD model, so that I can used the XNS to observe their
rising and falling waveform. Moreover I am trying to find its output
impedance in XNS.
My question is : Does anyone ever try finding the output impedance of a
driver? AND how did you achieve that?

Thanks very much for your comment!
Jason leung