Description
With the removal of the 3.5mm audio jack from Apple devices, wireless earphones—especially affordable ones—have seen explosive growth in recent years. As the market for low-cost wireless earphones becomes saturated, manufacturers are now shifting their focus to high-definition and high-fidelity wireless headsets. These premium options have carved out a solid space in the market.
However, as these markets become more competitive, it's crucial to find a new and more attractive segment. With the rapid expansion of the headset industry, noise-canceling headphones have gradually moved into the mainstream, showing great potential. Yet, the current market is dominated by a few major brands, with high prices limiting broader adoption. This creates a huge opportunity for a product that offers cost-effective, high-performance noise cancellation combined with sound quality comparable to high-end audiophile headphones.
Shenzhen Yongkang Technology Co., Ltd. has recognized this gap and launched an innovative, low-cost solution featuring adaptive active noise cancellation and high-fidelity Bluetooth technology. Their TP4101 + YFK2017 + HT97220 system eliminates the need for expensive dedicated noise-cancelling chips, delivering top-tier performance in both noise reduction and audio quality.
The YFK2017 chip is a fully integrated, dual-mode Bluetooth headset chip supporting both BT4.2 and BLE4.2. It can deliver Hi-Fi audio at 192kHz/24bit with an SNR exceeding 100dB. It also supports EQ settings, subwoofer enhancements, 3D surround sound, and advanced noise cancellation technologies—including adaptive active noise control. This allows for high-end noise cancellation without the need for costly separate components.
The HT97220 is a professional Hi-Fi headphone amplifier designed for compactness and performance. It eliminates the need for DC blocking capacitors, delivers exceptional signal-to-noise ratio, minimal distortion, and completely removes click and pop sounds. It also provides excellent low-frequency fidelity, ensuring a rich and immersive listening experience.
Key Features
1. Dual-mode Bluetooth 2.1 + 4.2 with call support (A2DP v1.3/AVRCP v1.5/HFP v1.5)
2. Supports SD/MMC cards
3. USB 2.0 communication protocol
4. Two active noise cancellation microphones and two microphone voice recognition ports
5. Main power supply range: 3.1V – 5.5V
6. Five full-featured EQ functions
7. I2S digital audio output interface
8. External Hi-Fi amplifier HT97220 with a maximum output of 125mW
9. Efficient dynamic battery charging management via TP4101
Highlights
â— Designed for Hi-Fi enthusiasts with noise-cancelling capabilities
â— Compact BGA package for space efficiency
â— Exceptional SNR for realistic and detailed audio reproduction
â— Ultra-low power consumption
â— High-efficiency 600mA fast charging circuit with overcharge, over-discharge, and short-circuit protection
Block Diagram
PCB Demo Board
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Shenyang Tiantong Electricity Co., Ltd. , https://www.ttradiator.com