ADAU7118ACPZRL7 - IOVDD rail current drawn

SigmaDSP & SigmaStudio HardwareDesign Mar 30, 2022 00:00 1 replies Original on forum ↗

HardwareDesign Question

Mar 30, 2022 00:00

Could you please share the operation state(IOVDD pin) current value when two PDM_CLKx pin is used. From datasheet, the current value is given for single PDM_CLX pin used. Attached below for reference.

Thanks & Regards,

Thangaprabu S

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DaveThib Reply

Mar 30, 2022 00:00

Hello Thangaprabu,

This specification is provided to give customers an approximate value to expect. It is very dependent on external factors. In this case there were two pins being driven, the SDATA and the PDM_CLK. So adding one more pin would give you around another 1ma. Again, this is a typical and depends on external factors. The evaluation board does provide an easy way to measure the IOVDD current draw. You can place the part under similar load conditions that you will see in your design and then you can measure the results.

Dave T

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