LC3 / LC3plus Bluetooth LE Audio Codecs for Arm Cortex M55
Packetcraft LC3 supports demanding audio use cases running multiple codec instances on a single processor, without requiring a dedicated DSP. LC3 is part of the overall LE Audio solution offered by Packetcraft, and when combined with Packetcraft Host and Packetcraft Controller, licensees receive a comprehensive, fully-integrated Bluetooth LE Audio solution from a single software supplier.
Packetcraft LC3 is highly optimized for Arm® Cortex® processors and can be used with your preferred Bluetooth SoC complemented with exceptional engineering support.
Also available is Packetcraft LC3 Tester, a companion test tool which allows the Packetcraft LC3 codec to be validated, characterized, and qualified on a target hardware platform.
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Block Diagram of the LC3 / LC3plus Bluetooth LE Audio Codecs for Arm Cortex M55

Bluetooth IP
- Ultra low-power 2.4 GHz transceiver for Bluetooth Low Energy 5
- Bluetooth 5.x Low Energy (BLE) RF Transceiver
- Bluetooth 5.4 LE Controller with Link Layer and optional 802.15.4 MAC
- Bluetooth 5.4 LE Host
- RivieraWaves Bluetooth 5.3 Low Energy Baseband Controller, software and profiles
- RivieraWaves Bluetooth 5.3 dual mode Baseband Controller