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CC1310: Power Consumption of CC1310

Sudeepa Madubhashitha Weerasinghe Manikka Baduge
Prodigy 40 points
Part Number: CC1310

Tool/software:

I need to know total power consumption (in Ah) of this mcu when it transmit and receive the data. in the data sheet only mention the current consumption. how can I found the time requirement for each tx and rx? 

  • 0
    TI__Guru* 78141 points

    Hi Sudeepa,

    This depends on several factors such as the number of bytes being transmitted/received, packet format and the datarate of your PHY.

    E.g if you're transmitting a packet with 4 bytes of preamble + 4 bytes of sync word + 1 length byte + 30 bytes of datathe total packet length is 39 bytes (312 bits).

    If you're using a 50 kbps phy, the duration of the transmission is 312 b / 50 000 bps = 0.00624 s = 6.24 ms.

    If you're transmitting at +10 dBm, the current consumption is 13.4 mA. Your total power consumption for one packet transmitted is then 0.00624 s * 0,0134 A = 0.000083616 As = 83.6 uAs. 

    Alternatively, if you want a better idea of the big picture, you can configure device to transmit and receive packets, and measure the average current consumption over one period. We have documented best practices for current measurements in this app note:

    https://www.ti.com/lit/swra478

    Cheers,

    Marie H