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.
The technical storage or access is strictly necessary for the legitimate purpose of enabling the use of a specific service explicitly requested by the subscriber or user, or for the sole purpose of carrying out the transmission of a communication over an electronic communications network.
The technical storage or access is necessary for the legitimate purpose of storing preferences that are not requested by the subscriber or user.
The technical storage or access that is used exclusively for statistical purposes.The technical storage or access that is used exclusively for anonymous statistical purposes. Without a subpoena, voluntary compliance on the part of your Internet Service Provider, or additional records from a third party, information stored or retrieved for this purpose alone cannot usually be used to identify you.
The technical storage or access is required to create user profiles to send advertising, or to track the user on a website or across several websites for similar marketing purposes.