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ccRF 3 click - MikroElektronika Low-Power Radio Transceiver 433 MHz

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  • ccRF 3 click - MikroElektronika Low-Power Radio Transceiver 433 MHz

    ccRF 3 click carries the CC1120 high-performance RF transceiver for narrowband systems from Texas Instruments. The clicks will enable you to add a low-power consumption radio transceiver at 433 MHz frequency. ccRF 3 click is designed to run on a 3.3V power supply. It communicates with the target microcontroller over SPI interface, with additional functionality provided by the following pins on the mikroBUS™ line: AN, RST, CS, PWM, INT.

    Note: the click requires an external N.FL. antenna

    CC1120 RF transceiver features

    The CC1120 device is a fully integrated single-chip radio transceiver designed for high performance at very low-power and low-voltage operation. The device is mainly intended for Industrial, Scientific, and Medical (ISM) applications and Short Range Device (SRD).

    The CC1120 device provides extensive hardware support for packet handling, data buffering, burst transmissions, clear channel assessment, link quality indication, and wake-on-radio. The main operating parameters of the CC1120 device can be controlled through an SPI interface.


    Wake-On-Radio or eWOR y enables CC1120 to periodically wake up from SLEEP and listen for incoming packets without MCU interaction.

    When the CC1120 device enters RX mode, it listens and then returns to sleep if a valid RF packet is not received. The sleep interval and duty cycle can be configured to make a trade-off between network latency and power consumption. Incoming messages are time-stamped to simplify timer resynchronization. The eWOR timer runs off an ultra-low-power 32-kHz RC oscillator.

    Power consumption

    In IDLE mode the CC1120 uses 1.3mA, while in power down with retention mode the consumption goes to 0.12µA.

    SmartRF™ Studio software

    CC1120 can be configured using the SmartRF™ Studio software. SmartRF™ Studio is highly recommended for obtaining optimum register settings, and for evaluating performance and functionality.

    After chip reset, all registers have default values and these might differ from the optimum register setting. It is therefore necessary to configure/reconfigure the radio through the SPI interface after the chip has been reset. SmartRF Studio provides a code export function making it easy to implement this in firmware.


    Type RF Sub 1GHz
    Applications Narrowband ultra-low-power wireless systems with channel spacing down to 12.5 kHz, wireless metering and wireless smart grid, home and building automation, wireless alarm and security sytems, etc.
    MCU CC1120 high-performance RF transceiver for narrowband systems
    Key Features Power consumption of 1.3mA in IDLE mode, 433 MHz frequency band
    Interface GPIO,SPI
    Input Voltage 3.3V
    Compatibility mikroBUS
    Click board size S (28.6 x 25.4 mm)



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