PCBA Images

About TECircuit

Found: TECircuit has been operating since 2004.

Location: An electronics manufacturing service(EMS) provider located in Shenzhen China.

Item: Customizable EMS PCB, offers a full range of one-stop shop services.

Service: Printed Circuit Board (PCB)and Printed Circuit Board Assembly(PCBA), Flexible Printed Circuit Board(FPC), Components Sourcing, Box-Building, Testing.

Quality Assurance: UL,ISO 9001, ISO 14001, ISO 13485, ITAF 16949 andcomplied with ROHS and REACH.

Factory Pictures:
Company's own plant : 50,000 sqm; Employees : 930+; Monthly production capacity : 100,000 m2

PCBA Applications

• Retro-Modern Audio Playback: The PCBA enables digital audio file playback through traditional cassette player mechanisms, allowing users to enjoy modern MP3 music on vintage equipment while maintaining the classic cassette aesthetic.

• Car Stereo System Integration: It facilitates seamless connection between modern audio sources and older car cassette players, providing Bluetooth or direct audio transmission to vehicle sound systems without requiring hardware modifications.

• Portable Hybrid Music Experience: The PCBA combines nostalgic cassette form factor with contemporary digital music storage, creating a unique portable device that appeals to both retro enthusiasts and modern music listeners.

• Educational Technology Demonstration: Serves as an excellent teaching tool for demonstrating digital-to-analog conversion principles and electromechanical integration, showing how digital signals can interface with traditional mechanical systems.

• Audiophile Customization Platform: Provides a foundation for audio enthusiasts to modify and enhance sound quality through customizable PCBA components, allowing for personalized audio circuit modifications and upgrades.

• Universal Audio Connectivity Solution: Functions as an adapter bridge between modern audio devices and legacy playback systems, enabling smartphones and digital players to connect with older amplification equipment through cassette deck interfaces.

PCBA Features

1. Integrated Microcontroller System: The PCBA incorporates a dedicated microcontroller unit (MCU) that manages audio decoding, motor control, and user interface functions while maintaining low power consumption for extended battery life.

2. High-Efficiency Audio Decoding Circuitry: Features specialized audio processing chips capable of decoding multiple digital audio formats (MP3, WMA, FLAC) with high signal-to-noise ratio and minimal distortion for quality sound reproduction.

3. Precision Motor Control System: Includes sophisticated motor driver circuits that emulate cassette tape rotation patterns, ensuring proper alignment with host cassette player's drive mechanisms and maintaining consistent playback speed.

4. Advanced Power Management Architecture: Employs a sophisticated Power Management IC (PMIC) with multiple voltage regulation stages, optimizing battery usage and providing stable power to both digital and analog components.

5. Wireless Connectivity Integration: Incorporates Bluetooth transmission modules with advanced codec support (aptX, AAC) for wireless audio streaming while maintaining the physical cassette interface for broader compatibility.

6. Compact Mechanical Integration Design: The PCBA is engineered to fit within standard cassette shell dimensions using high-density interconnect technology, ensuring reliable operation while accommodating space constraints.

7. Multi-Interface Storage Support: Provides multiple storage options including microSD card interfaces and built-in flash memory, supporting various capacity requirements and enabling easy music file management.

8. Signal Conditioning Circuitry: Implements precision analog circuits that accurately replicate magnetic tape head output characteristics, ensuring compatibility with diverse cassette player equalization and amplification systems.

FAQ

​PCB & PCBA Description​

PCB Assembly OEM Service

Electronic Components Material Purchasing

Bare PCB Fabrication

Cable, Wire-harness Assembly, Sheet Metal, Electrical Cabinet Assembly Service

PCB Assembly Service: SMT, BGA, DIP

PCBA test: AOI, In-Circuit Test (ICT), Functioal Test (FCT)

Conformal Coating Service

Prototyping and Mass Production

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PCBA ODM service

PCB Layout, PCBA Design According To Your Idea

PCBA Copy/Clone

Digital Circuit Design / Analog Circuit Design/ lRF Design /Embedded Software Design

Firmware and Microcode Programming Windows Application (GUI) Programming/Windows Device Driver (WDM) Programming

Embedded User Interface Design / lSystem Hardware Design

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