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Does Spectre (Currnetly : Version 13.1.0.127.ISR3) has any option or setup to get better SFDR ?

Charley Chen over 11 years ago

Hi All ,

If lumped C , SFDR is OK , once has r and only r (no c/cc) , (SFDR ↑ r count ↓ , SFDR ↓ r count ↑ )

Does Spectre(Currnetly : Version 13.1.0.127.ISR3) has any option or setup to get better SFDR ?

I found when i reduct the r netwok , SFDR is better (r count is less) , if not reduct r network , SFDR is worst (r count 14699)

How to solve it ?

Thank you,

Charley

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Andrew Beckett over 11 years ago

No, spectre doesn't have a limitation on "r count". Your SFDR may have some dependency on how accurately the parasitics are extracted (I don't know) but I doubt that's anything to do with the simulator...
Regards,
Andrew.
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Andrew Beckett over 11 years ago

No, spectre doesn't have a limitation on "r count". Your SFDR may have some dependency on how accurately the parasitics are extracted (I don't know) but I doubt that's anything to do with the simulator...
Regards,
Andrew.
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