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ADAU1772 DC coupling input/outputs

Question asked by rpmarchand Employee on Aug 5, 2015
Latest reply on Aug 10, 2015 by DaveThib

Hello,

 

i am looking at the ADAU1772 and i was wondering if you could clarify if there are any requirements for the coupling type.  on the evaluation board it shows that all inputs and outputs are AC coupled, however, if the signal is within the allowable range of the ADC (i.e. 2.54Vpp with VDD = 3.3V 0dBFS) can the inputs be DC coupled?

 

similarly for the outputs can they be DC coupled without impact to the ADAU1772?

 

Thanks!

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