Low-power, low-voltage 700/800/900MHz transceiver designed for low-cost IEEE 802.15.4-2011, ZigBee Pro, 6LoWPAN, and high data rate ISM applications available in China, Europe, North America, and Japan. The transceiver offers an extreme 120 dB link budget (-110 dBm receiver sensitivity / +10 dBm transmit power). It is a true SPI-to-antenna solution providing a complete radio transceiver interface between the antenna and the microcontroller. MAC and AES hardware accelerators improve overall system power efficiency and timing.

It comprises the analog radio transceiver and the digital demodulation including time and frequency synchronization, and data buffering. All RF-critical components are integrated on a single chip minimizing the number of required external components to the antenna, crystal and decoupling capacitors. The bidirectional differential antenna pins, used for transmission and reception, eliminate the need for an external antenna switch.

An internal 128 byte RAM buffers transmit and receive data. Two on chip low dropout (LDO) voltage regulators provide the internal analog and digital 1.8V supply.

• Chinese WPAN band from 779 to 787MHz
• European SRD band from 863 to 870MHz
• North American ISM band from 902 to 928MHz
• Japanese band from 915 to 930MHz
• BPSK with 20 and 40kb/s, compliant to IEEE® 802.15.4-2003/2006/2011
• O-QPSK with 100 and 250kb/s, compliant to IEEE 802.15.4-2006/2011
• O-QPSK with 250kb/s, compliant to IEEE 802.15.4-2011
• O-QPSK with 200, 400, 500, and 1000kb/s PSDU data rate
• Flexible combination of frequency bands and data rates
• Receiver sensitivity up to -110dBm
• Programmable TX output power up to +11dBm
• SLEEP = 0.2μA
• TRX_OFF = 450μA
• RX_ON = 9.2mA
• BUSY_TX = 18.0mA at TX output power +5dBm
• Ultra-low supply voltage (1.8V to 3.6V) with internal regulator
• Registers, frame buffer, and AES accessible through fast SPI
• Clock output with prescaler from radio transceiver
• 128-byte FIFO (SRAM) for data buffering
• Fully integrated, fast settling PLL to support Frequency Hopping
• Battery monitor
• Adjustable receiver sensitivity
• Integrated TX/RX switch, LNA, and PLL loop filter
• Automatic VCO and filter calibration
• Integrated 16MHz crystal oscillator
• FCS computation and Clear Channel Assessment
• RSSI measurement, Energy Detection and Link Quality Indication
• Automated acknowledgement and retransmission
• CSMA-CA and Listen Before Talk (LBT)
• Automatic address filtering and automated FCS check
• AES 128-bit hardware accelerator
• Antenna Diversity
• RX/TX indication for external RF front end control
• True Random Number Generation for security application
• Few external components necessary (crystal, capacitors and antenna)
• Excellent ESD robustness
• Industrial temperature range from -40°C to +85°C
• 32-pin Low-Profile QFN Package 5 x 5 x 0.9mm³
• RoHS/Fully Green
• Compliant to IEEE 802.15.4-2003/2006/2011
• Compliant to ETSI EN 300 220-1, and FCC 47 CFR Section 15.247