FSK RF COB Module (transceiver)

RFM12 is a low costing ISM band transceiver module implemented with unique PLL. It works signal ranges from 315/433/868/915MHZ 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 2.5KHz step

high data rate (up to 115.2 kbps with internal demodulatorû¦with external RC filter highest data rate is 256 kbps)

differential antenna input, automatic antenna tuning

Programmable TX frequency deviation (15 to 240 KHz),programmable receiver bandwidth (67 - 400 kHz)

analog and digital signal strength indicater(ARSSI/DRSSI)

AFC

DQD

Internal data filtering and clock recovery

RX synchron pattern recognition

SPI interface
clock and reset signal output for external MCU use
16 bit RX Data FIFO, Two 8 bit TX data registers

10MHz crystal for PLL timing

wakeup timer

2.2V - 5.4V power supply,low power consumption, stand by current less than 0.3ýÌA