[IBIS-Users] IV curves w.r.t. Rfixture / Rload

Hello All,

I am generating IBIS Models ( based on 2.0 Format) for a bidirectional  IO
cell with output impedence of 32 Ohms.

Customer specification is to use Rfixture/Rload value of 50 Ohms for IBIS
Models.

But when I see my pullup and pulldown I-V curves, the loadline corresponds
to the Resistive load of 32 Ohms which is nothing but the output impedence
of driver in my Bidir cell.

I think that the pullup and pulldown I-V curves should correspond to
Resistive Load of 50 Ohms. Am I correct in assuming this ?

Or is it expected that irrespective of the value of Rfixture / Rload pullup
and pulldown curves should correspond to Zout of driver ?



Thanks in Advance

Best Regards

Chetana

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