Re: Bird 17, 101 points in tables

Arpad,

   Thank you for your feedback. After speaking with a Spice Simulator
vendor, you concern was verified. There is a 100 point voltage pair
limit on PWL power supplies. Based on this new information :^), Bob and
I would now oppose BIRD 17. Therefore, the bird will be revoked.

Scott Bloom
InterConnectiX, Inc.

>Hi all,

>Since I missed the last IBIS open forum meeting due to vacationing, I am not
>sure what the background of BIRD 17 is.
>
>Even though I do not like the 100 point limitation in some ways, I still think
>it might be necessary because of the 100 point limit in the SPICE PWL sources.
>As far as I understand, if we allow more than 100 points, we would automatically
>exclude IBIS models to be used under SPICE platforms. (Let me know if I am
>wrong).

>Since most curves have slowly changing (less sharp corners), or flat regions, I
>think it is not necessary to use fine (0.1V) increments throughout the whole
>range of a curve. Even though it is additional work, it is possible to write a
>simple algorythm which increases the data points in quickly changing areas and
>reduces them elsewhere.

>Arpad Muranyi
>Intel Corporation
Received on Mon Jul 25 13:44:22 1994