HJ-68LR(12)-A800
Overview
The HJ-68LR(12)-A800 is a compact LoRa transceiver module operating in the 858MHz to 938MHz frequency range, specifically designed for long-range, low-power wide-area network (LPWAN) communications. Measuring only 7.5mm x 7.5mm, this surface-mount module integrates an active TCXO oscillator for enhanced frequency stability and supports the LoRaWAN protocol via an SPI interface. It is optimized for battery-powered applications with a sleep current of just 1uA while providing a high-power output up to 20dBm.
Why Choose This Part
The module offers a superior power-to-size ratio, delivering 20dBm output from a tiny 7.5mm footprint. The inclusion of an active TCXO ensures reliable performance across the full -40C to +85C temperature range, making it suitable for harsh outdoor environments. Its ultra-low 1uA sleep current is ideal for energy-constrained devices running on small lithium batteries or energy harvesting.
Applications
Key Specifications
Getting Started
Engineers can interface with the module using standard SPI commands to control the radio registers and data buffers. Hardware integration requires a stable 1.8V to 3.7V power supply and an external antenna matched to the 50-ohm RF output pin. For software development, use standard LoRaWAN stacks such as LoRaMac-node, ensuring the regional parameters are set for the 868MHz or 915MHz bands.
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