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SX1282 Datasheet, PDF (1/1 Pages) Semtech Corporation – Transceiver/MCU/ADC System-on-Chip with RISC CPU for Battery-Powered Ultra-Low Power Applications | |||
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WIRELESS & SENSING PRODUCTS
Description
SX1282
Transceiver/MCU/ADC System-on-Chip with RISC CPU
for Battery-Powered Ultra-Low Power Applications
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.
The SX1282 is manufactured in an ultra modern 0.18µm
process, with the entire radio, CoolRISC MCU, ADCs, pe-
ripherals, 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
(23μA maximum)
⢠Oscillators
⢠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
Ordering Information
Part Number
SX12821075
Package
VQFN60
July 2008
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