FreeLists / si-list / [SI-LIST] differential IBIS model generation

[jing wu <jessica_wuluan@xxxxxxxxx>]

SI experts:

 

   I had a question about generating IBIS differential models. I am now working 
on generating the LVDS input IBIS buffer model with 100ohm on-chip-termination 
resistor. I was told that there is no specification for creating  differential 
IBIS files.  The I-V curve of [ground_clamp] and [power_clamp] can be generated 
using the voltage and current on the input pad, so the I-V curve of 
[ground_clamp] and [power_clamp] are identical. It does not make sense to me, 
if there is no standard to create differential IBIS file, how the different EDA 
company create the differential buffer model in their tools? 

   Thanks much in advance!


                        
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