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

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