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| WIRELESS & SENSING PRODUCTS Description Transceiver/MCU/ADC System-on-Chip with RISC CPU for Battery-Powered Ultra-Low Power Applications SX1282 The SX1282 transceiver with embedded CoolRISC(R) MCU, dual 10 and 16-bit ADC and peripherals provides a highly-integrated 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. The SX1282 is manufactured in an ultra modern 0.18m process, with the entire radio, CoolRISC MCU, ADCs, peripherals, inductors and filters all integrated on a single die. The circuit is capable of operating down to 1.0V, which makes operation from a single alkaline battery possible. The circuit is enclosed in a 60-pin QFN package of dimensions 7x7mm. * 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 (23A maximum) * Oscillators * * Integrated programmable RC oscillator * Start-up and C operation * 12.8 MHz crystal oscillator: * Transceiver operation * Low-power 32 kHz crystal oscillator * A level Time-keeping operation * Analog watchdogs detect crystal oscillator failures Data Acquisition * Pyroelectric acquisition chain * 80 dB PSRR on the full chain * 10 V/LSB * 16 bits ADC, 8 Hz bandwidth * Auxiliary 10 bits ADC * 10k samples/s * Multiple signal sources * Programmable input attenuation * Integrated thermometer function, 2C 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 * Ordering Information Part Number SX12821075 Package VQFN60 July 2008 1 www.semtech.com |
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