GENERAL DESCRIPTION
The XE1205 is an integrated transceiver operating in the 433, 868 and 915 MHz license-free ISM (Industrial, Scientific and Medical) frequency bands; it can also address other frequency bands in the 180-1000 MHz range. Its highly integrated architecture allows for minimum external components while maintaining design flexibility.

KEY PRODUCT FEATURES
• Programmable RF output power: up to +15 dBm
• High Rx sensitivity: down to -121 dBm at 1.2 kbit/s, -116 dBm at 4.8 kbits.
• Low power: RX=14 mA; TX = 62 mA @ 15 dBm
• Can accommodate 300-1000 MHz frequency range
• Wide band operation: up to 304.7 kbit/s, NRZ coding
• Narrow band operation: 25 kHz channels for data rates up to 4.8 kbit/s, NRZ coding; optional transmitter pre-filtering to enable adjacent channel power below -37 dBm at 25 kHz
• On-chip frequency synthesizer with minimum frequency resolution of 500 Hz
• Continuous phase 2-level FSK modulation
• Incoming data pattern recognition
• Built-in Bit-Synchronizer for incoming data and clock synchronization and recovery
• FEI (Frequency Error Indicator) with built-in AFC
• RSSI (Received Signal Strength Indicator)
• 16-byte FIFO for transmit / receive data buffering and transfer via SPI bus

APPLICATIONS
• Narrow-band and wide-band security systems
• Voice and data over an RF link
• Process and building control
• Access control
• Home automation
• Home appliances interconnection