RFM12B

www.DataSheet4U.com RFM12B Datasheet REV1.2 UNIVERSAL ISM BAND FSK TRANSCEIVER MODULE RFM12B （the purpose of this spec covers mainly for the physical characteristic of the module, for register configure and its related command info please refer to RF12B data sheets） RFM12B General Introduction RFM12B is a low costing ISM band transceiver module implemented with unique PLL. It works signal ranges from 433/868/915MHZ bands, comply with FCC, ETSI regulation. The SPI interface is used to communicate with microcontroller for parameter setting. Features: Low costing, high performance and price ratio Tuning free during production PLL and zero IF technology Fast PLL lock time High resolution PLL with 2.5 KHz step High data rate (up to 115.2 kbps with internal demodulator，with external RC filter highest data rate is 256 kbps) Differential antenna input/output Automatic antenna tuning Programmable TX frequency deviation (from 15 to 240 KHz) Programmable receiver bandwidth (from 67 to 400 kHz) Analog and digital signal strength indicator (ARSSI/DRSSI) Automatic frequency control (AFC) Data quality detection (DQD) Internal data filtering and clock recovery RX synchron pattern recognition SPI compatible serial control interface Clock and reset signal output for external MCU use 16 bit RX Data FIFO Two 8 bit TX data registers Standard 10 MHz crystal reference Wakeup timer 2.2V – 3.8V power supply Low power consumption Standby current le...