Recommended features of dual-band LoRa modules based on LR1121 chip solution

成都亿佰特

Recommended features of dual-band LoRa modules based on LR1121 chip solution [Copy link]

Dual-frequency LoRa module product introduction

The dual-frequency LoRa module developed by the LR1121 chip solution is divided into two models of LoRa modules, E80-400M2213S and E80-900M2213S, according to the working frequency band. This series of dual-frequency LoRa modules is a dual-frequency SMD LoRa hardware SPI wireless module independently developed based on SEMTECH's LoRa Connect LR1121 chip for multi-band global connection. The transmission power is 22dBm and 13dBm respectively. The LoRa dual-frequency module integrates an industrial-grade 48MHz high-precision low-temperature drift crystal oscillator.

The LR1121 chip solution is SEMTECH's third generation ultra-low power LoRa transceiver. It provides multi-band LoRa and long-range frequency hopping spread spectrum (LR-FHSS) communications based on the Sub-GHz band and 2.4 GHz ISM band, as well as satellite s-band connectivity. The LR1121 chip is designed to meet the physical layer requirements of the LoRaWAN specification released by the LoRa Alliance, while remaining configurable to meet different application requirements and proprietary protocols.

*Since this module is a pure hardware RF module, it needs to be programmed by the user before use.

Features of LoRa dual-frequency module

1. Low power consumption and high sensitivity LoRa/(G)FSK half-duplex RF transceiver;
2. Global ISM band support ranges from 150-960MHz (Sub-GHz) and 2.4 GHz, as well as 2.1 GHz s-band;
3. Built-in low noise figure RX front end, enhanced LoRa/(G)FSK sensitivity;
4. Maximum transmit power 22dBm@Sub-GHz/13dBm@2.4GHz, software-adjustable in multiple levels;
5. Under ideal conditions, the communication distance can reach 5.6km@433MHz/5.6km@868MHz/2.6km@2.4GHz;
6. The chip has a built-in LR-FHSS modulator, which supports remote frequency hopping spread spectrum in the 2.4 GHz band;
7. Integrated PA regulator power selector simplifies dual power supply design, achieving a maximum RF output power of +15/+22dBm (Sub-GHz only) on a single board;
8. Built-in DC-DC power supply circuit, lower power consumption and more stable system;
9. Capable of supporting multi-regional BOMs worldwide, with circuits that can adapt matching networks to meet regulatory restrictions;
10. Fully compatible with SX126x devices under Sub-GHz communication and compliant with the LoRaWAN standard defined by the LoRa Alliance;
11. Compatible with SX128x devices (except FLRC modulation) at 2.4GHz communication and compliant with the LoRa standard defined by the LoRa Alliance;
12. Hardware supports AES-128 encryption/decryption algorithms;
13. The module includes 48M high-speed crystal oscillator/32.768k low-speed crystal oscillator;
14. Industrial-grade standard design, supports long-term use at -40～+85℃;
15. Dual antennas are optional (IPEX/stamp hole), users can choose to use according to their needs;

LoRa dual-frequency module IoT application scenarios

1. Smart Meter
2. Building Automation
3. Agricultural Sensors
4. Smart City
5. Retail Store Sensors
6. Asset Tracking
7. Street lighting
8. Reversing radar
9. Environmental Sensors
10. Safety Sensors
11. Remote control application
12. Smart Home
13. Radio-controlled toys and drones