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Current consumption when advertising on CODED

Darkenkade

We are measuring advertisment current consumption with CODED and it's averaging about ~400uA. Advertising on 1MBPs is right around where it should be ~30uA. Advertising interval is 500ms. We are using NRF52840 DK. Is there a reason why there's such big difference between the 2 phys?

  • +1

    Hi

    The radio HW operates in the exact same way in Coded PHY as in the 1MBPS PHY, but in order to transfer X kB, it needs to transmit 8* X symbols in Coded PHY (S=8), and therefore the radio has to stay active 8 times as long. This means that the total charge/energy used will be ~8 times higher in Coded PHY than on the Uncoded PHYs. The peak current will be the same, but it will take a longer time to complete the transmission.

    Best regards,

    Simon

  • 0 in reply to Simonr

    i have the same question.

    with dcdc on ,coded phy with 20 ms interval and a timeout of 15 sec's the current consumption on the multimeter is 3mA.

    and with same configuration with 1Mbps it is 700uA.

    i cant increase the interval because i have to connect the devices over a long distance.

    my question is,can the current with coded phy reduced further?

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