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TLV320ADC3101: the pin12 and pin13 can been set to floating

Hope Chen
Expert 1030 points
Part Number: TLV320ADC3101


hi，

   Would you help confirm if the pin12 and pin13 can been set to floating when the Mic2 hadn't been used

   Could you help give any advice for the case

Thanks a lot

 

  • 0
    TI__Mastermind 30220 points
    Hope,

    This is not TI's Recommended practice. unused input pins should be tied together and AC coupled to GND with a 0.47uf Capacitor.

    Leaving them floating will not damage the pins in itself, but if the floating pins picked up some kind of strong transient it is possible that the device could be damaged. Thus the recommendation is to ac couple those inputs to GND.

    best regards,
    -Steve Wilson