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RFM22B-S2 SMD Wireless Transceiver - 915MHz
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  • Description: The RFM22B is a low-cost ISM FSK transceiver module which offers communication at 915MHz ISM and adjustable output power of up to +20 dBm. The wide operating voltage range of 1.8–3.6 V and low current consumption makes the RFM22B an ideal solution for battery powered applications.

    Communication with the RFM22B is achieved via a standard 4-wire SPI interface. Three configurable general purpose I/Os are also available, the use of which can be tailored towards the needs of your project. A host of other features are also available including an 8-bit ADC, temperature sensor, RX and TX FIFOs, and low-battery detection. See the datasheet below for a complete description of every register and command.

    The module comes in a 16-pin, 16 x 16mm, SMD package, with pins spaced by 2mm.

    Note: These modules are 915MHz and Rev3.0.

    Features:

    • Frequency Range: 915MHz ISM
    • Sensitivity = -121 dBm
    • Output power range: +20 dBm Max
    • Data Rate = 0.123 to 256 kbps
    • FSK, GFSK, and OOK modulation
    • Power Supply = 1.8 to 3.6 V
    • Ultra low power shutdown mode
    • Digital RSSI
    • Wake-up timer
    • Auto-frequency calibration (AFC)
    • Power-on-reset (POR)
    • Antenna diversity and TR switch control
    • Configurable packet handler
    • Preamble detector
    • TX and RX 64 byte FIFOs
    • Low battery detector
    • Temperature sensor and 8-bit ADC
    • –40 to +85 ¡ÆC temperature range
    • Integrated voltage regulators
    • Frequency hopping capability
    • On-chip crystal tuning

    Dimensions: 16 x 16mm (0.63 x 0.63 in)

    Documents:

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