PCM1795: Icc current consumption

Mochi

Genius 4025 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

over 4 years ago

0 Paul_Frost over 4 years ago

TI__Guru 53583 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 Mochi over 4 years ago in reply to Paul_Frost

Genius 4025 points

Hi Paul,

Thank you for your prompt reply.

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

Regards,

Mochizuki

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PCM1795: Icc current consumption