RFM22B 433Mhz Wireless Transceiver
RFM22B 433Mhz Wireless Transceiver. Low receive sensitivity (–121dBm), combined with industry-leading +20dBm output power, provides extended range and improved link performance. Onboard antenna diversity and frequency hopping support can be used to further extend range and improve performance.
Additional system features such as automatic wake-up timer, low battery detector, 64-byte TX/RX FIFOs, automatic packet processing and ingress detection reduce overall current consumption and lower system cost Allows the use of MCUs. An integrated temperature sensor, general-purpose ADC, power-on reset (POR) and GPIOs further reduce overall system cost and size.
RFM22B/23B The digital receive architecture features a high-performance ADC and DSP-based modem that performs demodulation, filtering and packet processing for greater flexibility and performance. Direct digital transmit modulation and automatic PA power ramp provide precise transmit modulation and reduced spectral spread ensuring compliance with global regulations including FCC, ETSI.
Quickly adjust radio settings An easy-to-use calculator is provided to configure the system properly, simplify the customer's system design, and reduce time to market.
Features:
- Frequency Range: 433MHz
- Sensitivity = -121 dBm
- Output power range: +20 dBm Max
- Data Rate = 0.123 - 256 kbps
- FSK, GFSK and OOK modulation
- Power Supply = 1.8 - 3.6 V
- Ultra-low power shutdown mode
- Digital RSSI
- Wake-up timer
- Automatic frequency calibration (AFC)
- Power-on reset (POR)
- Antenna diversity and TR switch control
- Configurable packet handler
- Ingress detector
- TX and RX 64 byte FIFOs
- Low battery detector
- Temperature sensor and 8-bit ADC
- Temperature range –40 to +85 °C
- Integrated voltage regulators
- Frequency hopping capability
- On-chip crystal setting
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