Analog power / Analog clean power?

Dear All,

Could you please tell me what's the different between analog power and
analog clean power in Pin Configuration?

Does that mean analog power pin not clean enough?

Thanks,

Boki.

 

It would help enormously if you mentioned which tool you're using. Your question
could mean anything...

Andrew.

 

I saw the AVDD, CVDD,...pins from a chip pin configuration, I guess it
is already a prodcut, but I didn't understand why design these
different supply signals.

Regards,

Boki.

 

Huh? You really must learn how to ask questions.

I can only guess that you have a design, with pins called AVDD and CVDD,
and you want us to fathom out what the intent of these signals are without
seeing the design. i.e. you're asking a question (if that indeed is what it is)
about your _specific_ design, rather than any tool or flow related issue.

Given the fact that supply names could be called anything, then there's
no way anyone can answer your question based on what you've said.
That said, it's not unusual to have multiple analog (or digital) power supplies.
It may be that one supplies most of the analog, and the other (the "clean" one?)
supplies sensitive parts of the analog that need a supply with low interference
from other circuitry. But this is a complete supposition - I have no way of
telling.

Andrew.

 

Dear Andrew,
Your message is always very useful, thanks a lot!

Regards,

Boki.