company blog about Supplying Realtek RTL8773BFR — Hybrid ANC Noise-Canceling Chip, Suitable for TWS and Over-Ear Headphone Applications

RTL8773BFR — Realtek Hybrid ANC Active Noise-Canceling Bluetooth Audio SoC, Empowering TWS Earbuds and Call Noise-Canceling Applications | Mingjiada Electronics

Product Overview: Setting a New Standard for TWS Earbuds

In today’s increasingly vibrant True Wireless Stereo (TWS) earbud market, the RTL8773BFR—a high-end Bluetooth audio chip launched by Realtek Semiconductor—has become the solution of choice for flagship TWS earbuds from numerous leading brands, thanks to its exceptional Active Noise Cancellation (ANC) performance and ultra-low power consumption.

The RTL8773BFR is a highly integrated Bluetooth 5.2 dual-mode audio single-chip solution. Not only does it inherit the robust RF stability of Realtek’s chip series, but it also achieves a quantum leap in audio processing capabilities. Supporting a Hybrid ANC (Active Noise Cancellation) architecture, it serves as the ideal core for creating high-end Hi-Res audio earbuds.

Key Advantages and Technical Specifications

1. Advanced Active Noise Cancellation Performance

The RTL8773BFR excels in noise cancellation technology, supporting a Hybrid ANC architecture with the following features:

Noise Cancellation Depth: Up to 40 dB of noise cancellation, effectively filtering out low-frequency noise in everyday environments to create an immersive, quiet listening experience for users.

Ultra-Low Power Consumption: Even with active noise cancellation enabled, power consumption increases by less than 1 mA, significantly extending the earbuds’ battery life per charge and addressing the common issue of short battery life in ANC earbuds.

2. Bluetooth and Audio Connectivity

Bluetooth Standard: Compatible with the Bluetooth 5.2 standard, offering improved transmission stability and interference resistance, and supporting a near-zero latency connection of less than 80 ms to ensure audio-visual synchronization in gaming and video.

High-Definition Audio: Supports Hi-Res audio decoding, combined with a dedicated DSP for audio encoding and decoding, delivering richer audio details.

Binaural Calling: Supports dual-microphone environmental noise cancellation (ENC) and Realtek’s proprietary RCV 4.0 algorithm, providing a clear calling experience.

3. Robust Development Compatibility

Master-Slave Switching: Supports “pick-up-and-go” functionality within the charging case and seamless master-slave switching; no need to distinguish between left and right ears, with smooth switching between mono and stereo modes.

Rich Interfaces: Supports three-channel LED drivers (for battery level indication), touch IC control, and analog/digital microphone inputs.

Convenient Development: Realtek provides a full-featured SDK development kit to help customers achieve rapid mass production.

Detailed Specifications

Model: RTL8773BFR

Manufacturer: Realtek Semiconductor

Bluetooth Standard: Bluetooth 5.2 Dual-Mode (BR/EDR + BLE)

Noise Cancellation: Supports Hybrid ANC (Active Noise Cancellation), with noise cancellation depth up to 40dB

ANC Power Consumption: Power consumption increase when enabled < 1mA

Latency Performance: Supports imperceptible latency connections below 80ms

Audio Features: Supports Hi-Res Audio; integrates a dedicated DSP

Call Noise Cancellation: Supports ENC (Environmental Noise Cancellation) using Realtek’s RCV 4.0 algorithm

Package Type: QFN-46

Application Scenarios

Thanks to its powerful noise-canceling capabilities and stable Bluetooth connectivity, the RTL8773BFR chip is widely used in the following areas:

High-end TWS (True Wireless Stereo) Bluetooth earbuds: As the core controller chip, it enables the creation of flagship earbud products that support active noise cancellation, transparency mode, and Hi-Fi sound quality.

Wireless gaming headsets: Leveraging its ultra-low latency to ensure audio-visual synchronization during gameplay and enhance the competitive experience for gamers.

Noise-canceling neckband headphones: Ideal for sports or business settings, providing clear call quality and an immersive music experience.

Smart audio devices: Serves as a core component for various IoT devices requiring high-quality Bluetooth audio transmission.

Why Choose Mingjiada Electronics’ RTL8773BFR?

As a seasoned international electronic component distributor established in 1996, Shenzhen Mingjiada Electronics Co., Ltd. has always adhered to the core philosophy of “Only Genuine Products.”

For more information on RTL8773BFR samples or quotes, please feel free to contact Shenzhen Mingjiada Electronics Co., Ltd. We are committed to providing the core driving force for your innovative audio products.