Re: Package Parasitics

One reason could be is that a ASIC vendor is simply creating "buffer only"
models without any package parasitics. Once the ASIC is defined(with package)
then you create the full IBIS model with all the individual buffers along
with the package parameters..

For a commercially available component, it does not make sense to have
a model without the package parasitics.

Syed
Cisco Systems, Inc

>
> > |
> >
> > I have found other models that have these values set to zero:
> >
> >
> > > > > [Package]
> > > > > R_pkg 0 0 0
> > > > > L_pkg 0 0 0
> > > > > C_pkg 0 0 0
> >
> > Can you explain why these values are used, i.e. why the model would be
> > realistic with no package parasitics?
> >
> > Thanks for your help.
> >
> > Best regards,
> > Jay Azurin
> > Motorola NetComm Applications
>

 
Received on Tue Apr 24 15:04:34 2001