Semtech LR1120 enables global asset tracking with multi-band LoRa, WiFi, and GNSS

Semtech LoRa Edge LR1120 is an ultra-low-power multi-band chip designed for global geolocation and asset tracking applications including direct satellite-connected Internet of Things (IoT) applications in supply chain management and logistics.

Not only does the LR1120 features the usual sub-GHz LoRa radio found in most other chips from the company, but also comes with 2.4GHz LoRa and SATCOM S-Band support for satellite, as well as a GNNS radio compatible with GPS and Beidou, and a WiFi radio for indoor positioning (but no WiFi RTT/802.11mc support).

Semtech LR1120Semtech LR1120 key features and specifications:

  • 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 1.9-2.1GHz (S-Band)
    • Low Noise Figure RX front-end
    • High power PA path
      • +22dBm in the Sub-GHz band
      • 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)
    • Supports worldwide multi-region BOM, the circuit adapts to matching network to satisfy regulatory limits
    • Fully compatible with SX1261/2/8 devices and the LoRaWAN standard
  • Multi-purpose radio front-end for geolocation
    • GNSS (GPS/ BeiDou) low-power scanning
    • 802.11b/g/n Wi-Fi ultra-low-power passive scanning
  • Security
    • AES-128 encryption/decryption engine
    • Handles device parameters such as DevEUI and JoinEUI
    • Protects confidential information such as encryption keys against unauthorized access
    • Stores NwkKey, AppKey
  • Package – QFN32 5×5 mm
LR1120 block diagram
Semtech LR1120 block diagram

Semtech says the chip works with the company’s LoRa Cloud geolocation solver in order to offload the location processing workload to the Cloud, and enable ‘deploy once’ battery life. The LR1120 mostly targets international logistics companies with applications such as multi-regional asset tracking, inventory management, as well as asset loss and theft prevention, and intercontinental logistics. But the company also highlights that satellite connectivity makes it suitable for infrastructure monitoring, agriculture, and environmental monitoring that require deployment in remote areas, including the replacement of the aging and insecure SCADA monitoring deployments.

More details may be found on the product page and press release.

Thanks to TLS for the tip.

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1 Comment
2 years ago

What a confusing block diagram. “Semtech says the chip works with the company’s LoRa Cloud geolocation solver in order to offload the location processing workload to the Cloud…” Proprietary cloud lock-in maybe?

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