PCM1808: VREF decoupling - maximum capacitance

user5268318

Part Number: PCM1808

Is there any concern with placing a 220uF to 470uF cap on VREF of the PCM1808, other than response at power up?

+1 Zak Kaye over 4 years ago

Hi,

The power up time would be my main concern, but I don't think there is really a benefit to using such a large capacitor for VREF.

Best,

Zak

0 user5268318 over 4 years ago in reply to Zak Kaye

Thanks Zak, we have a low frequency noise issue that seems to be mitigated with a large cap on the VREF pin. It may be masking some other issue.

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