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TLV320AIC3104: SCH CHECK

Raymond He
Expert 1990 points
Part Number: TLV320AIC3104

dear

  Attachement is about TLV320AIC3104 SCH from customer，please help to check if have any potenial design risks，thanks in advance

y15_v1.0_0708_TI.pdf

  • 0
    TI__Mastermind 22950 points

    Hello Raymond,

    My comments are below:

    • Unused inputs should be tied to GND via 0.47uF capacitor. To possibly save small cost, all unused inputs can be tied to single 0.47uF capacitor.
    • Lineouts have a low-pass filter at the output. This is good as there is Out of Band noise on the outputs and this needs to be filtered using a LPF especially if feeding into a Class-D amplifier. 
    • Power Supply decoupling looks good. 
    • I see there are 0ohm resistors on the digital interface pins ( MCLK, BCLK, WCLK, etc). We recommend adding small resistance to help with ringing and overshoot.

    Regards,

    Aaron