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TPA3111D1: Power up sequence

ACGUY
Guru 11170 points

Part Number: TPA3111D1

Hello E2E,

Does TPA3111D1 have regulation for PVCC and AVCC power up sequence?
I do like to separate the each power supply.

Regards,
ACGUY

  • 0
    TI__Mastermind 24835 points
    Hi Acguy,
    AVCC and PVCC use the same power supply, and a small decoupling resistor between AVCC and PVCC can be used to keep high
    frequency, Class-D noise from entering the linear input amplifiers. This is mentioned in the section 9 in the datasheet.
    Please be noted that the pin14 AVCC needs to be connected to PVCC in series with 100kohm resistor. This is introduced in section 7.3.1 in the datasheet.
    Best regards,
    Shawn Zheng