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PCM1795: Icc current consumption

Mochi
Genius 4165 points
Part Number: PCM1795

Hello,

 

Total Icc current consumption specification is 18mA(typ) @44.1KHz on the datasheet.

There are 3pins(#15,#23,#28) connection for analog Vcc +5V power supply.

Our customer try to add independent noise de-cupping RC filter for each pin to achieve the best quality sound.

Their question is what is current consumption of #15 Vcc2R and #28 Vcc2L at fs=44.1KHz?

 

Regards,

Mochizuki

  • 0
    TI__Guru 54133 points

    Hi Mochizuki-san,

    Unfortunately, I do not have that data.  I expect that the majority of the 18mA will flow equally to the VCC2R and VCC2L pins, as they controller, the delta-sigma modulator switching and current sources.  The VCC1 pin is the DSM reference current, so will be lower.  

    Thanks,

    Paul

  • 0 in reply to Paul_Frost
    Genius 4165 points

    Hi Paul,

    Thank you for your prompt reply.

     

    We have informed it to the customer and waiting their feedback.

     

    Regards,

    Mochizuki