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TLV320AIC3268: TLV320AIC3268 HW connect for unused function power

Mentor Tseng
Prodigy 195 points
Part Number: TLV320AIC3268

Dear Sir,

  My application of TLV320AIC3268 is simple, 3 channel I2S in/out , 1 LINE out and 1 phone out to amplifier. The Speaker, REC,MIC are unused in my application. Because of unused function, how these power pin ( SVDD/MICBIAS/SPK_V/MICDET/VBAT) should be connected? Floating, GND, or others.

(The below figure is my schematic for TLV320AIC3268)

Thanks a lot~

  • 0
    TI__Guru 57800 points

    Hi, Mentor,

    The power pins should remain connected as indicated in the datasheet, even if the block powered from them are not used. Regarding Micdet, it can be left open. Vbat can be tied to GND if unused.

    Best Regards,

      -Diego Meléndez López
       Audio Applications Engineer