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CC2640R2F: Power consumption of Sensor Controller

Gregory Duperon
Expert 7430 points
Part Number: CC2640R2F
Other Parts Discussed in Thread: CC1310,

Do we have documentation of the power consumption of the sensor controller in all of its available modes?

For example, what is the total power consumption of the sensor controller sampling data at 200ksps and then using DMA to pass samples to a main CPU?

Thanks.

  • 0
    Prodigy 70 points

    Additionally:

    1. What low power modes are there for the Sensor Controller?

    2. For each of those modes, what is the power consumption and time to enter active mode?
  • 0
    TI__Genius 11810 points
    Hi Gregory,

    Yes, see table 5 in this app. note: www.ti.com/.../swra578 The current numbers for CC1310 will be the same as for CC2640R2F. The table compare using the Cortex vs the Sensor Controller for controlling the ADC which is running at 200 ksps at different wake-up intervals. As the table shows, the power savings are quite significant, especially at higher wake-up frequency.

    -Simon
  • 0 in reply to Stephen Cool
    TI__Genius 11810 points
    Hi Stephen,

    CC2640R2 does only have one power mode, but CC2642 has a low power mode where the Sensor Controller is running at 2 MHz instead of 24 MHz. In low power mode the ADC is not available as it requires 24 MHz operation. However, if you only require a simple ADC you can implement a simple low power ADC using the Sensor Controller, see: www.ti.com/.../swra585

    -Simon