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TLV320AIC3120: About Power Seqeunce of TLV320AIC3120 AUDIO CODEC.

Si Yoon Kim
Intellectual 690 points
Part Number: TLV320AIC3120

Dear team,
I am using TLV320AIC3120 AUDIO CODEC.
I'd like to have some information about these below.


1) When using I2S related pins (VDD18) and SDA/SCL (PU VCC_1.8V), does IOVDD also need to supply 1.8V power?


2) Is simultaneous entry into Power SQ DVDD/IODVDD possible?


3) When IOVDD is 1.8V, is the I2S master/slave timing the same as the datasheet contents?

Best regards,

  • +1
    TI__Mastermind 30155 points

    Hi Si Yoon,

    1) Yes. IOVDD is required for all digital related functions.

    2) Yes. The device is flexible when it comes to power sequences

    3) Since 1.8V IOVDD timings are not provided you have to extrapolate. The minimums from the 1.1V should remain the same, but the maximums will drop slightly.

    Best regards,
    Jeff McPherson