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Nordic Launches Evaluation Platform to Pre-support 'Bluetooth LE Audio' Specifications Scheduled for Announcement in First Half of This Year
Published2020.01.31 14:52Supporting the new Bluetooth LE audio specification
Bluetooth LE Audio Evaluation Platform Launched
Nordic Semiconductor announced on the 31st that it has launched an LE audio evaluation platform in collaboration with Packetcraft, a Bluetooth LE (Bluetooth Low Energy) stack developer.
This LE audio evaluation platform is designed to support the new LE audio specification that the Bluetooth Special Interest Group (SIG) is scheduled to announce in the first half of 2020.
LE audio consumes less power than traditional Bluetooth audio, which can further extend battery life, and enables the development of devices that support both wireless data transmission and audio streaming along with high audio quality. It also supports broadcast mode, allowing you to add the ability to share audio with multiple people.
The new platform consists of Nordic’s nRF52832 Bluetooth LE SoC, Cirrus Logic’s CS47L35 smart codec with integrated low-power audio DSP, a hardware reference design based on Packetcraft’s Bluetooth LE host stack and link layer supporting LE audio, and an LE audio software development kit (SDK).
Developers can use this platform to start technical evaluations of Bluetooth LE audio-based products such as wireless speakers and wireless headphones.
The newly released LE audio evaluation platform is designed to operate as a source (audio source, voice call headset source, P2P (Peer-to-Peer) call, etc.) or a sink (audio playback, headset playback, P2P call sink). To complete the LE Audio Link, device pairing (source and sink) is required.
Nordic’s LE audio solution features Cirrus Logic’s ‘SoundClear’ function for uplink noise reduction and echo cancellation, enhanced playback, voice control, and hearing augmentation.
It is equipped with an integrated audio connector capable of accommodating up to six microphones or two speakers, a 3.5mm headset jack and a 3.5mm source jack, as well as a USB connector for debugging (using Nordic’s development tools), sound tuning (using Cirrus Logic’s WISCE platform), and charging.
When wirelessly streaming audio from a source device to wireless sync earbuds, the LE audio platform can extend battery life by up to 40% compared to traditional modern commercial Bluetooth solutions.
Meanwhile, the nRF52832 SoC is based on a 64MHz, 32-bit Arm Cortex M4F processor and features 2.4GHz multiprotocol radio, 512kB of flash memory, and 64kB of RAM. It comes with Nordic’s S132 SoftDevice, a Bluetooth 5 certified RF software protocol stack.
Packetcraft's Bluetooth LE software consists of a multiprotocol controller with a Bluetooth link layer, IEEE 802.15.4 MAC, Bluetooth host stack, GATT profiles, Bluetooth mesh profiles and models, etc.
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