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TLV320AIC3106: TLV320AIC3106 power-on sequence

Mason Liu
Expert 4035 points
Part Number: TLV320AIC3106

Hi, 

Do we have a power-on seq for TLV320AIC3106? 

In customer board, there are 2 pcs board, TLV320AIC3106 has a I2C failure with MCU, after reset the TLV320AIC3106, I2C become normal.

And we did the ABA test, failure doesn't follow SDA845 or MCU. 

So i'm just wondering is there some seq that TLV320 required?

Thanks.

BR

Mason

  • 0
    TI__Guru 62085 points

    Hello,

    The TLV320AIC3106 is very robust to different power-supply conditions and while the recommended sequence in the datasheet will provide the most optimal sequence it's unlikely that not directly following the sequence is the trouble here.  Please find more information here:  https://e2e.ti.com/support/audio/f/6/t/952744

    Make sure you hold the device in reset until all the supplies are stable and then release RESET to activate the device and begin the I2C comms.