Two-microphone wireless audio reference design kit supports consumer gaming

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By eeNews Europe

The solution delivers crystal clear, wireless 16-bit uncompressed audio with less than 22 ms latency, excellent co-existence performance, over 100-hours of battery lifetime from two AA batteries, and a total BoM (Bill of Material) that supports competitive consumer product pricing.

The nRFready Microphone reference design kit includes two microphone boards, a receiver board with both USB and analog interfaces, plus a complete set of design files, source code, and supporting documentation. The microphone board integrates a Nordic nRF2460 2.4 GHz audio streamer IC, AKM’s AK5700 16-bit mono ADC with microphone pre-amp and ALC (Automatic Loudness Control), a 3.5 mm jack for the microphone, and a Microchip PIC16F684 Flash microcontroller. The receiver board integrates two Nordic nRF2460 audio streamer ICs, two AKM AK4430 24-bit stereo DACs, an AKM AK5374 24-bit stereo ADC, and a Microchip PIC16F684 Flash microcontroller. To enable easy connection to PC-based or analog audio systems both analog (RCA) and USB audio interfaces are included on the receiver board.

"The nRFready Microphone solves all the major challenges involved in designing a consumer wireless microphone product while providing a class-leading audio solution that still leaves enough room for customers – via a complete set of supplied source code and design files – to customize and differentiate their end application," said Richard Kulavik, Director of Applications and Marketing at AKM Semiconductor.


nRFready Microphone (nRF6915) is available for $99.

Visit Nordic Semiconductor at


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