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AFE5816: low noise mode

FRANK1
Expert 7835 points
Part Number: AFE5816
Other Parts Discussed in Thread: AFE5818

Hi Team,

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I have a question about power mode of ADC AFE5816
AFE5816 have three power modes: low-noise and mediumpower and low-power
But in datasheet I see how only turn on medium-power or low-power mod
LOW_POW and MEDIUM_POW bits
so I have a question how to turn on low-noise mode.

it's a different modes with different performance in datasheet.

Thank you for your clarification.

Thanks.

  • 0
    Prodigy 31 points

    In datasheet:

    9.4.4 TGC Configuration
    By default, the VCA is configured in TGC mode after reset. Depending upon the system requirements, the device
    can be programmed in a suitable power mode using the MEDIUM_POW (register 206, bit 14) and LOW_POW
    (register 200, bit 12) register bits.

    But these are only two modes and no information about low-noise mode, in example in datasheet for AFE5818 described all three power modes by combination of bits. For AFE5818 when all bits in zero then device in low-noise mode, so is it true for AFE5816?

  • 0 in reply to Alexander Gusev
    TI__Intellectual 1590 points

    Hi Alexander,

    Yes. Your understanding is correct. Device by default (when both MEDIUM_POW and LOW_POW bits are zero) comes up in LOW_NOISE mode.

    Regards,

    Kalyan