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computing FFT and SNR using spectrum function

Hi all,

I am working with flash ADC. I wanted to know what is the procedure being followed and what parameters need to be set while simulating FFT in order to find SNR, SNDR, ENOB.

Thank you in advance.

regards,

Siddharth kala

Andrew Beckett over 9 years ago

You should look at using the spectrum assistant in ViVA (covered in the documentation). There's also this application note.

Regards,

Andrew
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Avinash Murugesan over 4 years ago in reply to Andrew Beckett

Dear Andrew, I see that this link is not opening, and requires some authentication. It would be kind if you could post an open source link on the documentation. Thank you.

Regards

Avinash M
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ShawnLogan over 4 years ago in reply to Avinash Murugesan

Dear Avinash,

Avinash Murugesan said:
I see that this link is not opening, and requires some authentication.

The link that you indicate appears to have been updated as I was not able to access it. I believe a link that does function for me with the same information is at:

https://support.cadence.com/apex/ArticleAttachmentPortal?id=a1O0V000009MpV4UAK&pageName=ArticleContent

You will need a Cadence On-line Support account to view the note.

Shawn
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Andrew Beckett over 4 years ago in reply to ShawnLogan

Shawn's right - that's the updated version of the app note (the original path doesn't work any more - but I fixed the link in the post in case anyone tries again)>

Andrew
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