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Low power modes

RF transceiver operational modes

Mode Operation Time spent Requirements Importance
Transmit (TX) TR is transmitting an RF packet Very short periods As low as possible, but given mostly by RF output power Important
Receive (RX) TR is receiving or attempting to detect incoming RF packet Majority of non-sleeping time As low as possible Crucial
Run TR is operating (either with or without RF circuitry sleeping) but no RX or TX is in progress Negligible Not critical Negligible
Sleep No operation (including incoming RF signal detection) is possible until TR wakes up. Majority of time 1 µA order of magnitude for battery life of years Necessary
Deep sleep No operation (including incoming RF signal detection) is possible. Complete initialization of RF circuitry must be performed after TR awakening. Very long periods (if applicable) Extremely low power in very long periods of inactivity. In special applications only. Either not critical or crucial

IQRF extra low power consumption

IQRF is outstandingly suitable for battery operated devices.

  • Sleep - tens or hundreds of nanoAmpers
  • RX - as low as outstanding 15 µA in consumption optimized (XLP) mode. To optimize the consumption in this most crucial mode (see the table above) for various needs, three RX/TX modes are available: STD (Standard), LP (Low Power) and XLP (Extra Low Power).
  • Even lower is receiving in LP combined with sub-µA precisely timed sleeping.

That is why battery-operated network Coordinator and routers are enabled.

» TR-76D power consumption parameters

TR-76D power consumption measured by H TEST, an independent company specialized in advanced tests and precise measurements:

TR-76D consumption measured by H Test

Measuring equipment: Keysight N6705B DC power analyzer with N6785A source/measure unit for battery drain analysis.