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SX1261
SX1261, SX1262 and SX1268 sub-GHz radio transceivers are ideal for long range wireless applications. The three devices are designed for long battery life with just 4.2 mA of active receive current consumption. The SX1261 can transmit up to +15dBm and the SX1262 and SX1268 can transmit up to +22dBm with highly efficient integrated power amplifiers.
These devices support LoRa® and Long Range FHSS modulations for LPWAN use cases and (G)FSK modulation for legacy use cases. The devices are highly configurable to meet different application requirements utilizing the global LoRaWAN® standard or proprietary protocols.
The devices are designed to comply with the physical layer requirements of the LoRaWAN specification released by the LoRa Alliance®.
The radio is suitable for systems targeting compliance with radio regulations including but not limited to ETSI EN 300 220, FCC CFR 47 Part 15, China regulatory requirements and the Japanese ARIB T-108. Continuous frequency coverage from 150MHz to 960MHz allows the support of all major sub-GHz ISM bands around the world.
Features
- LoRa and FSK Modem
- 170dB maximum link budget (SX1262 / 68)
- +22dBm or +15dBm high efficiency PA
- Low RX current of 4.6 mA
- Integrated DC-DC converter and LDO
- Programmable bit rate up to 62.5kbps LoRa and 300kbps FSK
- High sensitivity: down to -148dBm
- 88dB blocking immunity at 1MHz offset
- Co-channel rejection of 19dB in LoRa mode
- FSK, GFSK, MSK, GMSK and LoRa and Long Range FHSS modulations
- Built-in bit synchronizer for clock recovery
- Automatic Channel Activity Detection (CAD) with ultra-fast AFC
The level of integration and the low consumption within SX1261/2 enable a new generation of Internet of Things applications.
- Smart meters
- Supply chain and logistics
- Building automation
- Agricultural sensors
- Smart cities
- Retail store sensors
- Asset tracking
- Street lights
- Parking sensors
- Environmental sensors
- Healthcare
- Safety and security sensors
- Remote control applications
Applications
Packaging
- SX1261IMLTRT | Tape & Reel | 3’000 pieces
Pb(Lead)-Free/RoHS-Green Info
(-40°C to +85°C / 4000 cycles)
(50°C, 4000 Hrs)
Datasheets & Documentation
Application Notes
- AN1200.28: MCU Requirements for LoRaWAN
- AN1200.33: Crystal Oscillator Trimming
- AN1200.35: Software Manchester Encoding for the SX1261/2
- AN1200.36: RxDutyCycle with the SX1261/2
- AN1200.37: Recommendations for Best Performance (thermal relief)
- AN1200.40: Reference Design Explanation for the SX1261/62
- AN1200.42: FCC Pre-Compliance with LoRaWAN Modules for the SX1261
- AN1200.48: LoRa Channel Activity Detection (CAD) with SX126x
- AN1200.53: Transmitting and receiving packets longer than 255 bytes on the SX1261/62
- AN1200.54: SX126x Adaptive Matching and Configuration for Multiband Operation
- AN1200.58: Application note for Long-Range FHSS Demo
- AN1200.59: Selecting the Optimal Reference Clock
- AN1200.62: Best Practices for FCC Pre-Compliance testing of LoRaWAN Modules
- AN1200.64: LR-FHSS System Performance
- AN1200.66: PCB Design Guidelines
- AN1200.73: SX126x/LR11xx SigFox Modulation
- AN1200.80: LoRa® Modem Doppler Immunity
- AN1200.81: Doppler Immunity of the LR-FHSS Modem
- AN1200.91: Design guide for the SX1261/62 IPD
- AN1200.94: LoRaWAN Theory for One-Channel Hub
- AN1200.96: One-Channel Hub Hardware and Regulatory Aspects
- TN1300.01: How to Qualify a LoRaWAN Device in Europe
Reference Designs
- Introduction: SX126x Development Kits Part Numbers
- Shield: SX1261MB1BAS 868 MHz RF Module (used in the SX1261DVK1BAS Development Kit)
- Shield: SX1261MB1CAS 923 MHz RF Module (used in the SX1261DVK1CAS Development Kit)
- Shield: SX1261MB2BAS 868 MHz mbed shield
- SX1261/62 Miniaturized Ref Design with Johanson Technology IPD (see AN1200.70)
Additional Resources
Explore software downloads, documentation, recommended links, and more resources for this product.
SX126x Driver
LoRa Basics Modem SDK - SWSD001
LoRa Basics Modem - SWL2001
Distributor/Catalog Supplier Inventory
View product availability from participating distributors below. Browse all distributors here.
| Part # | Country | Qty | Buy | Distributor |
|---|
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