ADAU1701 unused pins

SigmaDSP & SigmaStudio jan2 Nov 15, 2011 00:00 2 replies Original on forum ↗

ICs: ADAU1701

jan2 Question

Nov 15, 2011 00:00

I do not use internal ADC and DAC in my ADAU1701 application. How to connect ADC and DAC pins?

I suppose these pins could be left opened:

ADC0

ADC1

VOUT0

VOUT1

VOUT2

VOUT3

ADC_RES?

What about

FILTA

FILTD

AVDD

Thanks,

Jan

Audio Signal Processors

SigmaDSP Audio Processors

adau1701

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ADIApproved Reply

Nov 16, 2011 00:00

Hi Jan,

In order to keep everything stable and quiet i would use the recommended 18K resistor on the ADC_RES pin to ground. I would use the recommended decoupling on the FILTA, FILTD and CM pins. You should definitely decouple and power AVDD for normal operation.

Best Rgds,

Alan

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EZAdministrator Reply

Aug 2, 2018 00:00

This question has been assumed as answered either offline via email or with a multi-part answer. This question has now been closed out. If you have an inquiry related to this topic please post a new question in the applicable product forum.

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EZ Admin

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