PCBA Consumer HDMI Capture Card SMT Printed Circuit Board Assembly

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

• Real-Time Content Creation and Live Streaming: The PCBA captures and encodes high-definition video and audio from cameras, gaming consoles, or computers in real-time, enabling creators to broadcast live to platforms like Twitch, YouTube, or conduct professional webinars without noticeable delay.

• Professional Broadcast and Production Workflow: Used in studio environments to ingest video feeds from multiple sources (cameras, screen outputs) into production software for switching, recording, and editing, forming a critical link in professional video production pipelines.

• Gameplay Recording and Esports Content Production: Captures raw, high-fidelity gameplay footage directly from gaming PCs or consoles, allowing players and esports broadcasters to record sessions for highlights, tutorials, or post-production without impacting gaming performance.

• Corporate Communication and Remote Collaboration: Facilitates the sharing of high-quality screen content, presentations, or video feeds during video conferences, ensuring that visual materials are transmitted clearly and professionally in hybrid or remote meeting settings.

• Educational and Training Content Creation: Enables educators and trainers to easily record lectures, software tutorials, or instructional demonstrations directly from their computer or document camera, producing high-quality educational video assets.

• Security and Surveillance System Integration: Can be deployed to capture and digitize video feeds from legacy or modern HDMI-equipped security cameras, facilitating integration into network video recorders (NVRs) or central monitoring systems.

• Device Testing and Hardware Diagnostics: Provides a means for engineers and technicians to capture and analyze the video output from devices under test (e.g., set-top boxes, media players, graphic cards) for quality assurance, debugging, and compliance verification.

PCBA Features 

1. HDMI Receiver and Signal Conditioning Circuitry: The PCBA incorporates a dedicated HDMI receiver chip that extracts uncompressed video and audio data from the source. It includes signal conditioning circuits to handle different cable lengths and maintain signal integrity for stable capture.

2. Video Encoder/Compression Processor: At its core, the board features a powerful video processing chip (often an ASIC or FPGA) that performs real-time hardware encoding (e.g., H.264, H.265, AV1) on the raw video stream, drastically reducing file size for efficient recording or streaming.

3. Audio Extractor and Embedding Processor: Includes circuitry to extract embedded audio from the HDMI signal, process it (e.g., pass-through, mixing), and then re-embed it into the output stream or route it separately via interfaces like a 3.5mm audio jack or USB audio channel.

4. High-Speed USB or PCIe Bridge Controller: The PCBA integrates a primary bridge controller (e.g., USB 3.2, USB-C, or PCIe) that manages the high-bandwidth data transfer of the encoded video/audio stream to the host computer, with the interface type defining the maximum achievable resolution and frame rate.

5. Onboard Memory and Frame Buffer: Utilizes high-speed RAM (e.g., DDR3/DDR4) as a frame buffer. This memory temporarily holds video frames during the encoding and data transfer process, preventing dropped frames and ensuring smooth capture, especially during variable bitrate scenes.

6. Precision Clock and Timing Management: Employs a stable clock generator and timing controller to synchronize the incoming HDMI signal with the internal processing and encoding clock, which is critical for eliminating audio-video sync issues (lip-sync errors).

7. Multi-Format Video Processing Scaler: Many advanced PCBAs include a hardware scaler that can resize the incoming video resolution (e.g., downscale 4K to 1080p) in real-time before encoding, providing flexibility for output requirements and conserving bandwidth.

8. Extended Input Protection and Compatibility Circuits: Features protection diodes, ESD (Electrostatic Discharge) protection chips, and level-shifting circuits to safeguard sensitive components from voltage spikes and ensure compatibility with a wide range of HDMI source devices.

FAQ

​PCB & PCBA  Description​

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