The LR1121 is suitable for use in a wide variety of applications such as smart meters, building automation, agricultural sensors, asset tracking, etc.
The RF transceiver has the ability to receive weak signals with high sensitivity, allowing for reliable communication over long distances even in noisy and challenging RF environments.
The LR1121 from Semtech is an ultra-low power high-sensitivity LoRa/(G)FSK half-duplex RF 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. The LR1121 is suitable for use in a wide variety of applications such as smart meters, building automation, agricultural sensors, asset tracking, etc.
A high-sensitivity LoRa/(G)FSK half-duplex RF transceiver has the ability to receive weak signals with high sensitivity, allowing for reliable communication over long distances even in noisy and challenging RF environments. Half-duplex means that the transceiver can either transmit or receive data at a given time, but not both simultaneously. Overall, a high-sensitivity LoRa/(G)FSK half-duplex RF transceiver is a wireless communication device that is designed for long-range, low-power, and reliable communication in IoT, smart city, and industrial applications.
According to the company, the LR1121 is an ultra-low power, long-range LoRa transceiver that provides support for terrestrial ISM band communications in sub-GHz and global 2.4GHz spectrum as well as S-Band support for satellite connectivity. The LR1121 features an integrated PA regulator supply selector to simplify dual power +15/+22dBm with one board implementation. The LR1121 offers support for AES-128 encryption/decryption-based algorithms, moreover, it protects confidential information such as encryption keys against unauthorized access.
Features
• Worldwide ISM frequency bands support in the range 150 – 960MHz (sub-GHz) and 2.4GHz, as well as 2.1GHz S-Band
• Low-power high-sensitivity LoRa/(G)FSK half-duplex RF transceiver
• 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 worldwide multi-region BOM, the circuit adapts to matching networks to satisfy regulatory limits
• Fully compatible with SX1261/2/8 devices and the LoRaWAN standard, defined by the LoRa Alliance
