ADS54J42: Fs/4, Fs/2 Spurs

Hiroshi Katsunaga

Part Number: ADS54J42

Hello,

My customer has a question.

[Q]

Is there a way to mitigate "Fs/4" spur and "Fs/2" spur ?

[My understanding]

These are spurs caused by DC offset mismatch, and it is correcting in DC offset correction block, so no more.

Changing "DC OFFSET CORR BW" may only be effective.

Best Regards,

Hiroshi Katsunaga

0 jim s over 4 years ago

Hiroshi,

DC offset correction does this for Fs/4 and Fs/2. The DC OFFSET CORR BW setting allows you to set the BW of the notch filter.

Regards,

Jim

0 Hiroshi Katsunaga over 4 years ago in reply to jim s

Hi Jim,

Thank you for your fast response.

OK, I understood it.

Thank you for your cooperation.

Best Regards,

Hiroshi Katsunaga

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