[IBIS-Users] Understanding usage of ( Vmeas Vref Cref Rref )

Hi,

If Timing Measurement Conditions describing parameters (Vmeas  Rref
Vref  Cref ) are included in a model, 

Does this imply that the delay ( core i/p to pad ) of IBIS or SPICE
Buffer  with this load conditions and measured at Vmeas will be same. 

      Tdelay (Vmeas  Rref  Vref  Cref )  (IBIS)     =  Tdelay (Vmeas
Rref  Vref  Cref )  (SPICE/Lab measurement)     

         Tdelay <=  Delay from input to Pad

 

                    

With regards,

Muniswara Reddy . V

Design engineer, PIPD-IO group,

Bangalore.

 


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