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TAS5731M: Question of the TAS5731M PVDD/AVDD/DVDD Power Up Sequence

Wayne Chen (Audio AE)
Genius 15950 points
Part Number: TAS5731M

Hi Sirs,

According to the TAS5731M datasheet, we need to turn on the AVDD/DVDD, delay 100us than turn on PVDD. However, will it make trouble to turn on PVDD before AVDD/DVDD?   



Thank you and Best regards,

Wayne Chen
03/14/2017

  • 0
    TI__Guru 57800 points

    Hi, Wayne,

    The power supply sequencing on this family of amplifiers can be flexible, specially for applications where AVDD/DVDD is generated from PVDD. There should be no issue by powering up PVDD first as long as /RESET and /PDN are kept low until both power supplies are stable.

    Best Regards,

      -Diego Meléndez López
       Audio Applications Engineer