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PCM5100A: Asking for the PCM5100A schematic review

SHH
Mastermind 30301 points
Part Number: PCM5100A
Other Parts Discussed in Thread: PCM5100


Hi Team,
Could you help review PCM5100A schematic?

Thanks,
SHH

  • 0
    TI__Guru 57800 points

    Hi, Scott,

    I have reviewed the schematic section of the PCM5100. In general it seems fine, however I see an issue with the power of the device. When I/O voltage is 1.8V, DVDD and LDO pins should be connected to 1.8V power supply; in the schematic, LDO is not powered. The internal LDO is only functional when DVDD is 3.3V, offering the option of disabling it by providing a 1.8V supply to LDO pin for low power operations. So, please recommend customer to connect 1.8V supply to LDO pin. 

    Best Regards,

      -Diego Meléndez López
       Audio Applications Engineer