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TPA2008D2: Ground Reference of Left and Right Channel input

Anurag Singh
Intellectual 255 points
Part Number: TPA2008D2

Hi, 

I am using TPA2008D2 in single mode. I am not sure about to which ground ( AGND or PGND )  LINN , LINP & RINN , RINP should be referenced. 

Request your support 

 Regards,

Anurag

  • +1
    TI__Guru** 102045 points

    Hi Anurag,

    Input GND should be referenced to the audio source GND, if audio signal comes from a CODEC or other device, it should be reference to the same GND as that device.
    Also, the GND connection must be made close to the audio source, not close to the TPA2008D2 IC, please refer to the below section of data sheet:

    Best regards,
    -Ivan Salazar
    Applications Engineer