The RFM31B-868 is a highly integrated, low-cost 868MHz ISM-band receiver module. Built-in antenna diversity and support for frequency hopping can be used to extend range and enhance performance. An easy-to-use calculator is provided to quickly configure the radio settings, simplifying customer's system design and reducing time to market. Available in DIP or SMD module format.
• Carrier Frequency Range: 848 to 888MHz ISM band
• Receiver Sensitivity: –121dBm @ 2kbps, GFSK
• OTA Data Rate = 0.123 to 256kbps
• Modulation: FSK, GFSK or OOK
• Frequency hopping (FHSS) capability
• Digital RSSI
• Wake-up timer
• On-chip crystal tuning
• Auto-frequency calibration (AFC)
• Power-on-reset (POR)
• Embedded antenna diversity algorithm
• Packet handler, preamble detector and CRC checker
• Supports Data Whitening and Manchester Encoding
• Receiver 64-byte FIFO
• Low-battery detector
• Temperature sensor and 8-bit ADC
• Host communication: serial SPI
• Power Supply: +1.8 to +3.6Vdc
• Power-saving modes: Tune, Ready, Sensor, Sleep, Standby, Idle and Shutdown
• Integrated voltage regulators
• Operating temperature range: -40 to +85°C
• Dimensions: 15.5 x 14mm (DIP), 16 x 16mm (SMD)
• Applications: Remote control, Home security, Telemetry, Personal data logging, Tyre pressure monitoring, Wireless PC peripherals, Remote meter reading, Remote keyless entry, Home automation, Industrial control, Sensor networks, Health monitors and the Internet-of-Things (IoT)
731-2735 RFM31B-868-D 14-Pin DIP module
属性 | 数值 |
---|---|
元件类型 | 模块 |
扩充槽 | 868MHz |
调制技术 | FSK,GFSK,OOK |
最高射频数据传输率 | 256kbit/s |
接收器灵敏度 | -121dBm |
支持的总线接口 | SPI |
电源电压 | 1.8 → 3.6V |
尺寸 | 14 x 15.5 x 5.9mm |
高度 | 5.9mm |
长度 | 15.5mm |
最高工作温度 | +85°C |
最低工作温度 | -40°C |
宽度 | 14mm |