The CMT2312A is an ultra-low power, high-performance, OOK / 2(G)FSK / 4(G)FSK / G(MSK) based RF transceiver, applicable to various applications within the 113 - 960 MHz frequency band. The product is part of the CMOSTEK NextGenRFTM product family which covers a complete product line consisting of transmitters, receivers and transceivers. The high-density integration of CMT2312A simplifies the required BOM in system design. With Tx power reaching +20 dBm and sensitivity reaching -122 dBm, it can achieve optimized performance of application RF links. Through providing multiple data packet formats and code methods, this product ensures the flexible supporting of various applications. Besides, the CMT2312A provides functions such as 128-byte Tx/Rx FIFO, multiple GPIO and interrupt configurations, Duty-Cycle mode, LBT (listen before talk), high-precision RSSI, LBD, power on reset, low-frequency clock output, quick frequency hopping, squelch, etc., which allows more flexible application design and gains more product differentiation capability.

Features:

 Frequency range: 113 – 960 MHz

 Modulation/demodulation: OOK, 2 (G)FSK, 4 (G)FSK, G(MSK)

 Data rate: 0.1 - 1000 kbps

 Sensitivity: 2 FSK, -122 dBm DR=2.4 kbps, 433.92 MHz

4 FSK, -88 dBm DR=1 Mbps,433.92 MHz

OOK, -94 dBm DR= 300 kbps, 433.92 MHz

 Adjacent channel rejection : 62 dBc, BW = 4.8 kHz,

Channel space = 12.5 kHz

 Blocking: 76 dBc , ±1 MHz offset, BW = 4.8 kHz

 Operating voltage range: 1.8 - 3.6 V

 Tx current: 30 mA @ 13 dBm, 433.92 MHz, FSK

82 mA @ 20 dBm, 433.92 MHz, FSK

 Rx current: 9.6 mA (DCDC) @433.92 MHz, FSK

 No extra RF switching components required in single antenna mode

 Multiple super-low power (SLP) Rx modes available

 Sleep current

 400 nA, Duty Cycle = OFF

 800 nA, Duty Cycle = ON

 Special features:

 Quick and stable automatic frequency control (AFC)

 3 varied clock data recovery systems (CDR)

 Quick and accurate valid signal detection (PJD, RSSI)

 Super-low power (SLP) and Duty Cycle receiving

 Fast Tx or Rx frequency hopping

 Carrier sense multiple access (CSMA)

 Automatic ACK and re-sending

 Antenna diversity

 4-wire SPI interface

 Supporting both direct and packet modes, with configurable packet handler and 128-Byte FIFO

 NRZ format, Manchester, whiten data coding, FEC

Application:

 Automatic meter reading

 Home security and building automation

 ISM-band data communication

 Industrial monitoring and control

 Remote control and security system

 Remote key entry

 Wireless sensor node

 Tag reader and writer