GENERAL DESCRIPTION
The SX1231 is a highly integrated RF transceiver capable of operation over a wide frequency range, including the 433, 868 and 915 MHz license-free ISM (Industry Scientific and Medical) frequency bands. Its highly integrated architecture allows for a minimum of external components whilst maintaining maximum design flexibility. All major RF communication parameters are programmable and most of them can be dynamically set.

KEY PRODUCT FEATURES
Š High Sensitivity: down to -120 dBm at 1.2 kbps
Š High Selectivity: 16-tap FIR Channel Filter
Š Bullet-proof front end: IIP3 = -18 dBm, IIP2 = +35 dBm, 80 dB Blocking Immunity, no Image Frequency response
Š Low current: Rx = 16 mA, 100nA register retention
Š Programmable Pout: -18 to +17 dBm in 1dB steps
Š Constant RF performance over voltage range of chip
Š FSK Bit rates up to 300 kb/s
Š Fully integrated synthesizer with a resolution of 61 Hz
Š FSK, GFSK, MSK, GMSK and OOK modulations
Š Built-in Bit Synchronizer performing Clock Recovery
Š Incoming Sync Word Recognition
Š 115 dB+ Dynamic Range RSSI
Š Automatic RF Sense with ultra-fast AFC
Š Packet engine with CRC, AES-128 encryption and 66-byte FIFO
Š Built-in temperature sensor and Low Battery indicator

APPLICATIONS
Š Automated Meter Reading
Š Wireless Sensor Networks
Š Home and Building Automation
Š Wireless Alarm and Security Systems
Š Industrial Monitoring and Control