Speech Audio Solution for IEEE 802.15.4 Applications

Jennic Ltd has introduced a reference design which enables speech to be transmitted over an IEEE802.15.4 link using the company’s JN5139 single chip wireless microcontroller. The hardware and software design solution has been introduced as a result of customer demand for audio functionality and is aimed at applications from wireless headsets to network wide audio. It provides several key benefits for audio applications - low power operation with instant response and long standby battery life; secure speech with 128-bit AES encryption; simple development with no complex profiles, a range of greater than 200m, and more addressable nodes than Bluetooth, making it suitable for public address or broadcast applications. Applications include emergency services’ helmet to PMR radio, providing a fireproof and secure alternative to cables for communication from helmet to radio, and for applications including VOIP headsets and low power door intercoms.