Product description
RFM219S-433S1 is a high-performance RF receiver module for wireless data transmission in the 433.92 MHz band, optimized for low power consumption and robust reception in battery-powered systems. The module is based on an integrated low-IF architecture with a low noise amplifier, frequency synthesizer, and digital demodulator, providing high sensitivity and stable operation under varying environmental conditions. It supports OOK, FSK, and GFSK demodulation and can be configured via SPI or by programming the built-in EEPROM.
With a 32-byte FIFO, Manchester decoding, and data de-whitening, integration into microcontroller-based systems is simplified. Automatic calibration at startup and adjustable receiver parameters make the module suitable for applications such as home automation, remote reading, security systems, and industrial monitoring where reliable radio communication is required.
Specifications:
- Frequency: 433.92 MHz
- Demodulation: OOK, FSK, GFSK
- Data rate: 0.1 - 40 ksps (OOK), 0.1 - 100 ksps (FSK/GFSK)
- Sensitivity: approximately -111 dBm at 433.92 MHz FSK 9.6 ksps
- Supply voltage: 1.8 - 3.6 V DC
- Receive current consumption: approximately 4.3 mA (FSK at 433.92 MHz)
- Sleep current: approximately 60 nA
- Interface: 4-wire SPI
- FIFO: 32 bytes
- Frequency resolution: 24.8 Hz
- Operating temperature range: -40 to +85 °C
- Dimensions: 16 × 16 × 5 mm