Semtech SX1276
137MHz to 1020MHz Low Power Long Range Transceiver
The SX1276/77/78/79 transceivers feature the LoRa® long range modem that provides ultra-long range spread spectrum communication and high interference immunity whilst minimising current consumption.
Using Semtech’s patented LoRa modulation technique SX1276/77/78/79 can achieve a sensitivity of over -148dBm using a low cost crystal and bill of materials. The high sensitivity combined with the integrated +20dBm power amplifier yields industry leading link budget making it optimal for any application requiring range or robustness. LoRa also provides significant advantages in both blocking and selectivity over conventional modulation techniques, solving the traditional design compromise between range, interference immunity and energy consumption.
Overview
Features
- LoRa Modem
- 168dB maximum link budget
- +20dBm - 100 mW constant RF output vs. V supply
- +14dBm high efficiency PA
- Programmable bit rate up to 300kbps
- High sensitivity: down to -148dBm
- Bullet-proof front end: IIP3 = -11dBm
- Excellent blocking immunity
- Low RX current of 9.9mA, 200nA register retention
- Fully integrated synthesizer with a resolution of 61Hz
- FSK, GFSK, MSK, GMSK, LoRa and OOK modulation
- Built-in bit synchronizer for clock recovery
- Preamble detection
- 127dB Dynamic Range RSSI
- Automatic RF Sense and CAD with ultra-fast AFC
- Packet engine up to 256 bytes with CRC
- Built-in temperature sensor and low battery indicator
Applications
- Automated Meter Reading
- Home and Building Automation
- Wireless Alarm and Security Systems
- Industrial Monitoring and Control
- Long range Irrigation Systems
Packaging
- QFN 28
Order Codes
- SX1276IMLTRT - Pb-free, Halogen free, RoHS/WEEE compliant product
- SX1276DVK1IAS (169MHz and 868MHz): Starter Kit
- SX1276RF1IAS (169MHz and 868MHz): Starter Kit
- SX1276DVK1JAS (433MHz and 868MHz): Starter Kit
- SX1276RF1JAS (433MHz and 868MHz): Starter Kit
- SX1276DVK1KAS (490MHz and 915MHz): Starter Kit
- SX1276RF1KAS (490MHz and 915MHz): Starter Kit
- Automated Meter Reading
- Home and Building Automation
- Wireless Alarm and Security Systems
- Industrial Monitoring and Control
- Long range Irrigation Systems
Packaging
- QFN 28
Order Codes
- SX1276IMLTRT - Pb-free, Halogen free, RoHS/WEEE compliant product
- SX1276DVK1IAS (169MHz and 868MHz): Starter Kit
- SX1276RF1IAS (169MHz and 868MHz): Starter Kit
- SX1276DVK1JAS (433MHz and 868MHz): Starter Kit
- SX1276RF1JAS (433MHz and 868MHz): Starter Kit
- SX1276DVK1KAS (490MHz and 915MHz): Starter Kit
- SX1276RF1KAS (490MHz and 915MHz): Starter Kit
- SX1276IMLTRT - Pb-free, Halogen free, RoHS/WEEE compliant product
- SX1276DVK1IAS (169MHz and 868MHz): Starter Kit
- SX1276RF1IAS (169MHz and 868MHz): Starter Kit
- SX1276DVK1JAS (433MHz and 868MHz): Starter Kit
- SX1276RF1JAS (433MHz and 868MHz): Starter Kit
- SX1276DVK1KAS (490MHz and 915MHz): Starter Kit
- SX1276RF1KAS (490MHz and 915MHz): Starter Kit
Diagrams and Specs
Datasheets and Resources
- Designing for High Efficiency and Low-Harmonic Emissions
- LoRa Modulation: Crystal Oscillator Guidance
- LoRa™ and FCC Part 15.247: Measurement Guidance
- LoRa™ Modulation Basics
- MCU Requirements for LoRaWAN
- NEW - Recommended SX1276 Settings for EU868 LoRaWAN Network Operation
- Reading Channel RSSI During a CAD
- Software implementation of Data Whitening and CRC
- SX127x Reference Design Overview
- Testing for FCC Pre-Compliance with LoRaWAN Modules
- SX1276 Datasheet
- SX1276 Errata Note
- SX1276MB1JCS - 433/868 MHz mbed shield, switchless (Ref design only)
- SX1276MB1LAS - 433/915 MHz mbed shield
- SX1276MB1MAS - 433/868 MHz mbed shield
- SX1276RF1IAS - 169/868 MHz with TCXO
- SX1276RF1JAS - 433/868 MHz
- SX1276RF1KAS - 490/915 MHz
- Firmware Driver and LoRaWAN Stack V4.1.0
- Firmware Drivers V2.1.0 - LEGACY, DO NOT USE FOR NEW IMPLEMENTATION
- LoRa Calculator: fast evaluation of link budget, time on air and energy consumption
- Packet Error Rate Firmware
- PC GUI (1.0.0Beta5)
- LoRa Low Energy Design Guide
- LoRa Modem Designer's Guide
- SX1276DVK1xAS Development Kit User Guide