PCBA Consumer Electronics Video Switcher 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

• Live Broadcast Production: The PCBA is the core hardware responsible for the real-time selection, mixing, and transitioning between multiple live camera feeds, graphics, and pre-recorded videos during television news, sports events, and entertainment shows, ensuring seamless on-air output.

• Corporate and Event Presentation: Used in conference rooms, lecture halls, and live events to switch between various video sources such as laptops, document cameras, and live speaker feeds. The PCBA enables smooth presentations, picture-in-picture displays, and overlays for professional communication.

• Distance Learning and Educational Streaming: Facilitates the production of dynamic online courses and virtual classrooms by allowing instructors or producers to switch between their camera, screen share, and secondary content (like slides or videos), creating an engaging visual flow for remote students.

• House of Worship and Live Event Production: Powers the video direction for religious services, concerts, and theatrical performances. The PCBA allows operators to cut between wide shots, close-ups, and lyrics/script feeds for in-house projection and live streaming to online congregations or audiences.

• Content Creation and Gaming Live Streams: Enables streamers and content creators to professionally mix their gameplay, webcam, alerts, and other media sources in real-time. The PCBA provides the hardware foundation for scene transitions, overlays, and multi-view compositions without relying solely on software.

• Video Conferencing and Unified Communications: In advanced conference systems, the PCBA can automatically or manually switch between multiple participants' video feeds based on who is speaking, or composite several feeds into a single layout for a more natural meeting view.

• Command and Control Room Monitoring: Used in security centers, network operation centers (NOCs), and traffic management hubs to switch the main display wall feed between various critical video inputs from cameras, computers, and data visualizations for situational awareness.

PCBA Features 

1. Multi-Channel Video Input Matrix and Signal Conditioning: The PCBA integrates a dense array of video receiver chips (HDMI, SDI, DisplayPort) to accept multiple simultaneous inputs. It includes circuitry for equalization, re-clocking, and format conversion to normalize all incoming signals for processing.

2. Core Video Processing FPGA or ASIC: At its heart, the board features a high-performance Field-Programmable Gate Array (FPGA) or Application-Specific Integrated Circuit (ASIC). This chip performs the real-time video mixing, scaling, layering, chroma keying (green screen), and transition effects (cuts, fades, wipes) at the hardware level with ultra-low latency.

3. Frame Synchronizer and Timing Processor: Incorporates frame buffer memory and precise timing controllers to synchronize all input signals, which may have different resolutions and refresh rates, to a common clock. This is critical for preventing glitches, tears, or black frames during switches.

4. Audio Follow Video Embedding/De-embedding: Includes audio processing chips to extract embedded audio from video inputs, manage audio levels, and then re-embed the corresponding audio track into the program output signal, ensuring perfect lip-sync and audio-video alignment.

5. Multi-Format Output Controllers and Scalers: Features dedicated output controllers and hardware scalers to drive the main program output, auxiliary/preview outputs, and streaming encoder feed simultaneously, often at different resolutions and formats as required by various displays and destinations.

6. Control System Interface (GPIO, RS-422, Ethernet): Provides physical interfaces for external control systems. General-Purpose Input/Output (GPIO) ports allow triggers from other devices, while RS-422 serial or Ethernet ports enable integration with production automation systems and remote control panels.

7. Advanced Thermal and Power Management: The PCBA employs a sophisticated Power Management IC (PMIC) and is designed with careful thermal planning (using heatsinks and fan control) to manage the significant heat generated by the high-speed processing chips, ensuring stability during long operational periods.

FAQ

​PCB & PCBA  Description​