TWS Bluetooth Earphone Solution Development Case

Project Background: The client is an electronics factory in Dongguan, needing to develop a mid-to-high-end TWS Bluetooth earphone, requiring ANC active noise cancellation, transparency mode, dual device connection, battery life up to 30 hours. Solution Design: 1. Main Control Chip: BES2600WP Bluetooth audio SoC 2. ANC Solution: Feedforward + feedback hybrid noise cancellation, noise cancellation depth -35dB 3. Call Noise Cancellation: Dual-mic CVC noise cancellation, ambient noise suppression 4. Battery Solution: Earphone 50mAh, charging case 400mAh 5. Charging Solution: Type-C wired + Qi wireless charging 6. Audio Decoding: Supports AAC, SBC, aptX Technical Challenges: - Noise Cancellation Effect: Maintain good noise cancellation effect in noisy environments - Battery Life Optimization: Power balance between call and music modes - Wearing Comfort: Ergonomic design Deliverables: - Hardware Design: Completed earphone motherboard and charging case board design - Firmware Development: Bluetooth protocol stack, ANC algorithm, call algorithm - Structural Cooperation: Cooperated with structural engineers to complete mold design - Testing Certification: BQB, FCC, CE, RoHS certification Customer Value: Product successfully entered European market, monthly shipment reached 50,000 sets.

Proje Sonuçları

Project Results: Successfully delivered RC toy car PCBA solution. Client has started mass production with monthly output of 80,000 units.

Key Metrics:

• Yield rate: 99.3%
• Power consumption: 2.4G wireless, low latency
• Performance: 2.4GHz remote control, 50m range, 4-channel
• Reliability: Anti-interference, stable connection

Client Feedback: Remote control distance and response time meet requirements.

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