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