Description

The SX1282 transceiver with embedded CoolRISC®MCU, dual 10 and 16-bit ADC and peripherals provides a highly-in tegrated single-chip acquisition processing and RF solution.

With a design which sets state-of-the-art standards in low receiver consumption, dual ISM-band transceiver blocks are combined with a sophisticated ultra low-power 8-bit RISC core plus extensive signal acquisition peripherals to provide a complete system on chip for ISM-band applications.

Features

• Operating voltage down to 1.0V

• Supply voltage range from 1.0V to 1.6V

• Entire circuit can operate on a single AA battery

• Transceiver Chain

• Dual-Band operation, 434 MHz and 868 MHz

• Multi-channel, on-chip PLL,12.5 kHz steps

• FSK and OOK modulation

• Data rate up to 80 kbit/s FSK

• Sensitivity of -102 dBm @ 25 kbit/s, FSK, 10-3 BER

• Receive current 2.5 mA

• Autonomy up to four years from a single AA battery in wireless sensing

• Transmit power +10 dBm differential (35 mA supply current)

• Integrated RX-TX switch

• Super heterodyne architecture

• First conversion: IF @ 96 MHz for 868 MHz band

• Second conversion: zero IF

• HW support for symbol synchronization and clock recovery

• Power Management

• High-current step-up for external EEPROM supply @ 2.7V

• Low-current step-up for the supply of the data acquisition chains

• POR and brown-out detector

• Sophisticated Power Management

• Unused blocks are powered down

• Standby current down to 4.0uA typical (23μA maximum)

• Oscillators

Applications

• Integrated programmable RC oscillator

• Start-up and μC operation

• 12.8 MHz crystal oscillator:

• Transceiver operation

• Low-power 32 kHz crystal oscillator

• μA level Time-keeping operation

• Analog watchdogs detect crystal oscillator failures Data Acquisition

• Pyroelectric acquisition chain

• 80 dB PSRR on the full chain

• 10 μV/LSB

• 16 bits ADC, 8 Hz bandwidth

• Auxiliary 10 bits ADC

• 10k samples/s

• Multiple signal sources

• Programmable input attenuation

• Integrated thermometer function, 2°C accuracy Embedded Core

• Ultra Low-power

• 1.3 mA power consumption at 6.4 MIPS

• CoolRISC technology

• Energy-efficient RISC architecture

• Integrated 8x8 multiplier

• Program loads into and executes from RAM

• Memory resources

• 1 kbytes boot ROM

• 22 kbytes Instruction RAM

• 1 kbytes data RAM

Applications

• Alarm and security systems

• Wireless Sensor Networks

• Home Automation

• Wireless computer peripherals

• Telemetry

• Sports and Leisure Equipment

• Industrial Sensing