LR1121
The LR1121 is Semtech’s third generation ultra-low power LoRa® transceiver. It provides multi-band LoRa and Long Range - Frequency Hopping Spread Spectrum (LR-FHSS) communication over sub-GHz and 2.4GHz ISM bands as well as satellite S-Band connectivity. The LR1121 is designed to comply with the physical layer requirements of the LoRaWAN® specification released by the LoRa Alliance®, while remaining configurable to meet different application requirements and proprietary protocols.
Features
- Low-power high-sensitivity LoRa/(G)FSK half-duplex RF transceiver
- Worldwide ISM frequency bands support in the range 150 - 960MHz (sub-GHz) and 2.4GHz, as well as 2.1GHz S-Band
- Low noise figure RX front-end for enhanced LoRa/(G) FSK sensitivity
- High power PA path +22dBm in the sub-GHz band
- PA path up to +11.5dBm in the 2.4GHz band
- LR-FHSS modulator
- Integrated PA regulator supply selector to simplify dual power +15/+22dBm with one board implementation (sub-GHz)
- Able to support world-wide multi-region BOM, the circuit adapts to matching network to satisfy regulatory limits
- Fully compatible with SX1261/2/8 devices and the LoRaWAN standard, defined by the LoRa Alliance
Cryptographic Engine
- Supports AES-128 encryption/decryption based algorithms
- Handles device parameters such as DevEUI and JoinEUI, as defined by the LoRa Alliance
- Protects confidential information such as encryption keys against unauthorized access
- Stores of NwkKey, AppKey, as defined in the LoRaWAN standard
- Smart meters
- Building automation
- Agricultural sensors
- Smart cities
- Retail store sensors
- Asset tracking
- Street lights
- Parking sensors
- Environmental sensors
- Safety and security sensors
- Remote control applications
- Home automation and appliances
- Radio-controlled toys and drones
アプリケーション
Packaging
- QFN32 5x5mm
Order Codes
- LR1121IMLTRT
Pb(Lead)-Free/RoHS-Green Info
(-40°C to +85°C / 4000 cycles)
(50°C, 4000 Hrs)
Datasheets & Documentation
Application Notes
- AN1200.57 LR11xx Program Memory Update
- 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
- AN1200.76 Application Note for LR11xx IPD Reference Design
- AN1200.80: LoRa® Modem Doppler Immunity
- AN1200.81: Doppler Immunity of the LR-FHSS Modem
- AN1200.92: LR1121 Modem-E Evaluation Guide
Distributor/Catalog Supplier Inventory
View product availability from participating distributors below. Browse all distributors here.
| Part # | Country | Qty | Buy | Distributor |
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関連情報
To see more videos Videos
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To begin working with LoRa technology on Amazon Sidewalk, Amazon Sidewalk developers will need specific development kits, such as those provided by Silicon Labs, and Nordic Semiconductor. Both companies offer comprehensive Sidewalk development kits that can help you get started with LoRa and Amazon Sidewalk right away.
Amazon Sidewalk Prerequisites and Development Kits
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