Overview

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

     

Inventory

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