An advanced module for wireless audio product design based on Nordic Semiconductor’s nRF5340 high-end multiprotocol SoC, has been launched by IoT company, เซินเจิ้น ความไม่แน่นอน. The ‘FSC-BT631D’ module is supplied in a compact 12 โดย 15 โดย 2.2 mm package, and is described by the company as the world’s first บลูทู ธ® module that can support both เสียง และ บลูทู ธ Classic. In addition to the nRF5340 SoC, the module integrates a บลูทู ธ Classic transceiver chipset for enabling legacy เสียงบลูทู ธ การใช้งาน.

The next generation of wireless audio

“เสียง is the next generation of เสียงบลูทู ธ,” says Nan Ouyang, CEO at Shenzhen ความไม่แน่นอน. “It makes audio streaming over Bluetooth LE possible with enhanced performance in sound quality, การใช้พลังงาน, latency, and bandwidth. As the industry transitions from Classic Audio to เสียง, 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.”

ตัวอย่างเช่น, audio equipment solutions employing the ความไม่แน่นอน module can connect to audio source devices such as a smartphone, แล็ปท็อปหรือทีวีโดยใช้บลูทู ธ คลาสสิก, 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 เสียงบลูทู ธ, 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, ระยะยาว, ตาข่ายบลูทู ธ, ด้าย, ซิกเบีย, 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 MA (0 DBM TX Power, 3 V, DC/DC) and RX current of 2.7 MA (3 V, DC/DC). The sleep current is as low as 0.9 µA. นอกจากนี้, 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 Audio product development