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