Bluetooth^® LE Audio

Our 2.4 GHz Audio Streaming devices are highly integrated, ultra-low-power wireless transceivers with an embedded MCU, targeted for low latency audio applications such as communication headsets, gaming headphones, hearing aids, wireless headphones and earbuds, soundbars and TV transmitters, home Hi-Fi and speakerphones.

To simplify development and reduce time to market, our Audio Streaming Starter Kit includes a hardware development board, the MCUXpresso firmware development environment and a complete SDK for prototyping a wireless application.

Audio Streaming Products

Product	MCU	Characteristics	Power Consumption	Interfaces	Latency	Package
NXH2004UK	Arm® Cortex®-M0+	2.402 GHz to 2.480 GHz carrier frequency Bluetooth Low Energy 5.3 1Mbps and 2 Mbps PHY modes LE Audio MFi (Made for iPhone) ASHA (Audio streaming for Hearing Aids) HAP (Hearing Aid Profile) Auracast™	1.6 mW for audio playback 3.2 mW for Call use case Deep-Sleep current <60 µA Continuous RX transceiver current <4 mA @ 1.1 V Continuous TX transceiver current <8 mA @ 1.1 V	SPI UARTs GPIOs I²S	<35 ms for standard LE connection	WLCSP 48
NXH3675UK	Arm® Cortex®-M0+	2.402 GHz to 2.480 GHz carrier frequency Bluetooth Low Energy 5.3 1 Mbps and 2 Mbps PHY modes LE Audio Auracast™	8.8 mW at the headphone side Deep-Sleep current <60 µA Continuous RX transceiver current <4 mA @ 1.1V Continuous TX transceiver current <8 mA @ 1.1V	SPI UARTs GPIOs I²S	<20 ms for gaming <35 ms for standard LE connection	WLCSP 48
NXH3670UK	Arm Cortex-M0	2.36 GHz to 2.5 GHz carrier frequency Bluetooth Low Energy 4.2 1 Mbps and 2 Mbps PHY modes	8.5mW at headphone side Sleep current <63 µA Continuous RX current <3.7 mA @ 1.2V Continuous TX current <7.3 mA @ 1.2V	SPI UARTs GPIOs I²S	<20 ms	WLCSP 34

Enabling Bluetooth® 5.3 LE Audio with Auracast™

Discover our NXH3675 Bluetooth 5.3 LE audio certified chip with Auracast enabling low power consumption and ultra-low latency

Target Applications

Communication Headsets and Conferencing Phones

Hearing Aids

Wireless Headphones and Earbuds

Wireless Microphones

Gaming Headphones

Soundbars and TV Transmitters

Wireless Speakers

New Audio Experiences

Auracast™ is part of the Bluetooth LE audio standard and enables audio broadcast to multiple receivers.

It allows sharing audio privately with friends and family, or audio streaming to a large group of people in public spaces like large auditoriums, airports, sports bars, gyms, and more.

NXP's NXH3675 enables Auracast and can be used as both transmitter and receiver.

Auracast™: Broadcast and Share Audio Seamlessly

Join a walk through of the Auracast™ Experience at MWC 2023 to see how audio can be seamlessly shared to multiple receivers enhancing the user audio experience.

Additional Documents

NXH3675: Ultra-Low Power Bluetooth® Low Energy Audio Solution

The NXH3675 is Bluetooth 5.3 LE audio certified and supports Auracast™

Read the fact sheet

Bluetooth® LE Audio