Telecoms, Datacoms, Wireless, IoT


Development kit for Bluetooth LE Audio

30 May 2022 Telecoms, Datacoms, Wireless, IoT

Nordic Semiconductor recently released its nRF5340 Audio Development Kit (DK), a design platform for rapid development of Bluetooth LE Audio products. The audio DK contains everything needed to get started on LE Audio development projects. It is based on Nordic’s nRF5340 system-on-chip (SoC), boasting two Arm Cortex-M33 processors.

LE Audio is described by the Bluetooth Special Interest Group (SIG) as “the future of wireless sound.” The technology is based on the Low Complexity Communications Codec (LC3), an enhanced replacement for the low complexity sub-band codec (SBC) used by Classic Audio. LC3 ensures that LE Audio features both improved audio quality and better battery life than Classic Audio in all use-cases.

Extensive listening tests have shown that at all sample rates, the audio quality of LC3 exceeds that of SBC at the same sample rate and provides equivalent or better audio quality at half the wireless data rate. This lower data rate is a key factor in minimising the power consumption of LE Audio products. LE Audio also brings true wireless stereo (TWS) and other new functions to wireless audio, including audio sharing.

The nRF5340 Audio DK is highly configurable, allowing it to function as a USB dongle to send and receive high-quality audio data from a PC, a business headset or a TWS earbud (most use-cases require two or more nRF5340 DKs). The kit includes two 3,5 mm audio jacks for analog ‘in’ and headphones ‘out’; five user-programmable buttons and LEDs; an SD-Card holder for extra storage; a Segger J-Link debugger for programming and debugging, and connectors to access the analog/digital interfaces and GPIOs.

The DK is typically powered via USB but also has a battery connector for a Li-ion/Li-Po battery. The current consumption can be measured on the board and by using the dedicated current measurement pins and Nordic’s Power Profiler Kit II or other current measuring equipment.

For more information contact Andrew Hutton, RF Design, +27 21 555 8400, [email protected], www.rfdesign.co.za


Credit(s)



Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

Multi-protocol IoT prototyping platform
RF Design Telecoms, Datacoms, Wireless, IoT
The Nordic Thingy:53 brings dual-core Arm Cortex-M33 processing power and embedded machine learning to rapid IoT product prototyping.

Read more...
Quectel launches a high-performance single-band GNSS module
iCorp Technologies Telecoms, Datacoms, Wireless, IoT
The LC76G GNSS positioning module features fast and accurate position location performance as well as ultra-low power consumption.

Read more...
Power amplifier operates from 17,3 to 21,2 GHz
RF Design Telecoms, Datacoms, Wireless, IoT
The new QPA1724 power amplifier from Qorvo delivers a saturated output power of 20 W over the full frequency range.

Read more...
Directional coupler has a frequency range from 0,6 to 40 GHz
RF Design Telecoms, Datacoms, Wireless, IoT
The CE10-0R640 coupler from Marki Microwave is a 10 dB broadband directional coupler with directivity of 22 dB and insertion loss less than 2,3 dB.

Read more...
RF amplifier with low phase noise
RF Design Telecoms, Datacoms, Wireless, IoT
The APM-7516 is available in a connectorised module that measures 2,85 x 1,5 x 1 cm, with 2,92 mm connectors.

Read more...
‘World’s smallest’ LTE Cat 4 module with global coverage and 2G/3G fallback
RF Design Telecoms, Datacoms, Wireless, IoT
LARA-L6 is ideal for size-constrained applications such as video surveillance, dashcams, telematics, gateways, routers and connected health devices.

Read more...
Eight-way bandpass filter bank
RFiber Solutions Telecoms, Datacoms, Wireless, IoT
The AM3215 from Atlanta Micro is a broadband, eight-way bandpass filter bank offering low loss and high rejection from 2 GHz to 18 GHz. Each band delivers 2 GHz of bandwidth. With internal 50 Ω matching ...

Read more...
Front-end module for Wi-Fi 6/6E
RF Design Telecoms, Datacoms, Wireless, IoT
Qorvo’s QPF4632 is a Wi-Fi 6/6E (802.11 ax) integrated front-end module that operates from 5,945 to 7,125 GHz. It consists of a power amplifier (PA), DC logarithmic power detector, single-pole double-throw ...

Read more...
RF cavity filters for 5G
Electrocomp Telecoms, Datacoms, Wireless, IoT
Temwell has established a one-stop service for 5G RF cavity filters, featuring high specifications across a wide range of power requirements.

Read more...
Tri-radio module for a multitude of applications
RF Design Telecoms, Datacoms, Wireless, IoT
MAYA-W2 is among the first host-based modules to extend the benefits of highly efficient Wi-Fi 6 to industrial applications.

Read more...