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PCM4220: About using only one channel

Tao_2199
Genius 5660 points
Part Number: PCM4220
Other Parts Discussed in Thread: PCM1804-Q1, PCM3060

Hello,

Regarding to using only one channel on audio ADC/Codec,my customer is asking a question.

 

(Question)

 

When only one channel is used on following audio ADC/Codec,how to handle following pin?

Floating or AC coupling to GND or direct connect to GND?

 

PCM4220：VINL+/VINL-、VINR+/VINR-、VCOML/R、VREFL/R、REFGNDL/R

PCM1804-Q1：VINL+/VINL-、VINR+/VINR-、VCOML/R、VREFL/R、AGNDL/R

PCM3060：VINL、VINR、VOUTL+/ VOUTL-、VOUTR+/ VOUTR-、VCOM

 

Regards,

Tao_2199