An advanced module for wireless audio product design based on Nordic Semiconductor’s nRF5340 high-end multiprotocol SoC, has been launched by IoT company, 深セン フィジーコム. The ‘FSC-BT631D’ module is supplied in a compact 12 による 15 による 2.2 mm package, and is described by the company as the world’s first ブルートゥース® module that can support both ザ・オーディオ そして ブルートゥース クラシック. In addition to the nRF5340 SoC, the module integrates a ブルートゥース Classic transceiver chipset for enabling legacy Bluetoothオーディオ アプリケーション.

The next generation of wireless audio

“ザ・オーディオ is the next generation of Bluetoothオーディオ,” says Nan Ouyang, CEO at Shenzhen フィジーコム. “It makes audio streaming over Bluetooth LE possible with enhanced performance in sound quality, power consumption, latency, and bandwidth. As the industry transitions from Classic Audio to ザ・オーディオ, wireless audio product developers need a solution that can support both versions, which is why we have developed the FSC-BT631D module.”

“The nRF Connect SDK was also invaluable throughout the LE Audio development process.”

例えば, audio equipment solutions employing the フィジーコム module can connect to audio source devices such as a smartphone, laptop or TV using Bluetooth Classic, then transmit audio to an unlimited number of other LE Audio devices using Auracast™ broadcast audio.

The module employs the nRF5340 SoC’s dual Arm® Cortex®-M33 processors – providing a high performance application processor capable of DSP and Floating Point (FP) alongside a fully programmable, ultra low power network processor. The application core manages both the LE Audio codec and the codec for classic Bluetoothオーディオ, while the Bluetooth LE protocol is supervised by the network processor.

Support for multiple protocols

The LE Audio connectivity is made possible through the nRF5340 SoC’s 2.4 GHz multiprotocol radio featuring 3 dBm output power and -98 dBm RX sensitivity for a link budget of 101 dBm. This radio also supports other major RF protocols including Bluetooth 5.3, Bluetooth Direction Finding, 長距離, Bluetooth mesh, Thread, Zigbee, and ANT™.

“We selected the nRF5340 SoC because it achieved a stable coexistence of LE Audio and Bluetooth Classic which was key to this application,” says Ouyang. “The performance of the dual-core CPUs, excellent power efficiency, and RF performance were other factors in the decision.”

The ultra-low power consumption is made possible due to the nRF5340’s new, power-optimized multiprotocol radio, which offers a TX current of 3.4 ミリアンペア (0 dBm TX power, 3 V, DC/DC) and RX current of 2.7 ミリアンペア (3 V, DC/DC). The sleep current is as low as 0.9 µA. さらに, because the cores can operate independently, developers have the flexibility to optimize performance for power consumption, throughput, and low latency response.

“The nRF Connect SDK was also invaluable throughout the LE Audio development process, alongside the excellent technical information and application engineers provided by Nordic,” says Ouyang.

SOURCE Nordic-powered module simplifies Bluetooth LEオーディオ product development