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

• Customizable Sound Synthesis and Design: The PCBA serves as the core of individual modules (like oscillators, filters, envelopes) that users patch together to construct unique sound-generating and processing paths, enabling the creation of everything from classic analog tones to complex digital textures.

• Experimental and Generative Music Creation: It allows musicians and sound artists to build non-traditional, often self-playing, systems that generate evolving sequences, random melodies, and dynamic soundscapes through interconnected control voltage (CV) and gate signals.

• Hands-On Audio Education and Signal Flow Learning: Provides a tangible, physical interface for understanding fundamental principles of sound synthesis, electronics, and analog/digital signal processing by visualizing and manipulating the audio signal chain.

• Professional Studio Sound Design and Processing: Used as a premium outboard effect or sound source in recording studios, offering characterful analog filtering, unique modulation, and rich oscillator sounds that are difficult to replicate with purely software-based instruments.

• Dynamic Live Electronic Performance: Enables performers to create a flexible, tactile instrument tailored to their set, where sounds can be dramatically altered in real-time through physical patching and knob manipulation for expressive and unrepeatable live acts.

• Integration Bridge for Hybrid Studio Setups: Modules with digital-capable PCBAs can act as interfaces, converting analog CV/gate to MIDI or USB, or acting as hardware controllers for digital audio workstations (DAWs), seamlessly blending analog and digital workflows.

• Specialized Audio Tool Development: Allows engineers and artists to design and implement highly specialized audio processors or signal generators (e.g., unique distortion circuits, custom sequencers) that are not available in commercial products.

PCBA Features 

1. Voltage-Controlled Oscillator/Core (VCO) & Filter Circuits: The PCBA contains precise analog oscillator cores (for generating sound waves) and state-variable filter circuits, with their frequency, waveform, and resonance directly controllable by input control voltages (CV).

2. Control Voltage (CV) and Gate Signal Management: Designed with multiple input/output jacks and circuitry dedicated to routing, scaling, summing, and processing DC-coupled CV (for continuous control) and Gate/Trigger signals (for timing/events), which are the language of modular communication.

3. Eurorack-Compliant Power Regulation and Distribution: The PCB includes robust power regulation sections to accept standard +/-12V (or +/-15V) from the synth case's bus board, providing clean, stable, and protected power to all onboard analog and digital components.

4. Analog-Digital Hybrid Architecture: Many modern modules feature a hybrid PCBA design, combining analog signal paths with a digital microcontroller (MCU) or FPGA for precise timing, memory storage, complex sequencing, digital synthesis algorithms, and USB/MIDI communication.

5. High-Quality Analog-to-Digital / Digital-to-Analog Conversion (ADC/DAC): Incorporates high-resolution, high-sample-rate ADCs and DACs to ensure pristine audio quality when processing external audio, digitizing CV, or generating audio from digital sources within the module.

6. Front-Panel Component Integration: The PCBA is engineered with direct connections for durable potentiometers, switches, and LED indicators, designed to withstand constant tactile use. It also features robust, solder-closed jack sockets for frequent patch cable insertion and removal.

7. Precision Envelope Generator and Voltage-Controlled Amplifier (VCA) Circuits: Includes dedicated circuitry for generating precise attack-decay-sustain-release (ADSR) envelope curves and for cleanly amplifying or attenuating audio/CV signals using voltage control, which are fundamental for shaping sound dynamics.

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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