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TLV320AIC3204: Schematic review for TLV320AIC3204

Feng bin Su
Genius 9390 points

Part Number: TLV320AIC3204

Hi team,

My customer is using our TLV320AIC3204 and they would like to have your schematic review.

Please kindly provide your input. Thanks.

TLV320AIC3204IRHBR Schematic.pdf

  • 0
    TI__Expert 6440 points

    Thanks for contacting us. We shall get back to with the review comments by Monday.

    Best Regards.

  • 0 in reply to Diljith
    TI__Genius 9390 points

    Hi Diljith,

    Thank for your help. Customer is looking forward your reply  today. Thanks.

  • 0 in reply to Feng bin Su
    TI__Expert 6440 points

    Hi Feng,

    See comments below.

    Power supply decoupling looks good and follows data sheet recommendations.

    I see that unused inputs are AC coupled to GND via 0.1uF. Wherever convenient you may short the unused pins and ground them using a single 0.1uF cap. MICBIAS and MICDET are not used here and can be left unconnected.

    HPL and HPR outputs on AIC3204 are not ground centered and will have to be cap-coupled to drive headphone drivers. LOL and LOR can be left disconnected if not used.

    I2C lines are pulled to IOVDD. Place small series resistance for digital interfaces to help reduce overshoot and reduce coupling (10 ohm for MCLK and 27 ohm for others).

    Best Regards.

    Regards,
    Diljith