Circuit Board Co-Layout Design for Connector Placement Sites
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Solution Overview
Problem
Conventional video processing systems with separate scaler and timing controller chips increase production costs due to separate output interfaces, necessitating a more efficient circuit board layout design for integrated chips.
Innovation Solution
A circuit board with multiple connector placement sites dedicated to integrated signal processing circuits, allowing for flexible installation of connectors based on application requirements, and incorporating an interface multiplexer to connect these sites in series, thereby reducing production costs and improving signal transmission quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate scaler and timing controller chips are used, then each chip can have its dedicated output interface, but the production cost increases due to multiple separate interfaces
Solution Approach 1:
The circuit board is designed with multiple connector placement sites that can serve different signal processing circuits (scaler, timing controller, or integrated chip). This universal design allows the same board to support both separate chip configurations and integrated chip configurations, reducing production costs while maintaining signal transmission quality through appropriate connector placement.
Solution Approach 2:
The interface multiplexer dynamically selects which signal processing circuit (first or second) is connected to the output port, allowing flexible configuration of the connector placement sites. This dynamic switching capability enables the system to adapt between different chip configurations without requiring separate dedicated interfaces for each scenario.
2Adaptability or versatility
If multiple connector placement sites are dedicated to different signal processing circuits, then connector installation becomes flexible, but the circuit board layout complexity increases
Solution Approach 1:
The circuit board is segmented into multiple connector placement sites, each dedicated to specific signal processing circuits. This segmentation allows independent optimization of each site while maintaining overall system flexibility. The interface multiplexer further segments the signal paths, allowing selective activation of different connector sites based on the integrated chip configuration.
Solution Approach 2:
The interface multiplexer acts as an intermediary between the integrated chip and multiple connector placement sites. It manages the complexity of routing signals to multiple potential destinations, simplifying the overall board layout by providing a single control point for signal distribution rather than requiring dedicated hardwired connections to each connector site.
3Reliability
If connectors are strategically placed and passive components are utilized, then signal degradation is prevented, but the manufacturing process becomes more complex
Solution Approach 1:
Passive component placement sites are pre-configured on the circuit board at strategic locations between connector placement sites and signal processing circuits. These sites are prepared in advance during board manufacturing, allowing passive components to be added later if needed to prevent signal degradation, without complicating the core manufacturing process.
Solution Approach 2:
The circuit board implements local quality optimization by placing passive components only at specific locations where signal degradation is anticipated, rather than uniformly across the entire board. This targeted approach maintains signal transmission quality in critical areas while minimizing overall manufacturing complexity and component count.
Data Source
AI summary
An electronic device includes an integrated circuit, a connector, and a circuit board. The integrated circuit includes a first signal processing circuit, a second signal processing circuit, and an interface multiplexer having a first input port electrically connected to the first signal processing circuit, a second input port electrically connected to the second signal processing circuit, and an output port arranged to be electrically connected to the first input port or the second input port. The circuit board carries the integrated circuit and has a plurality of connector placement sites, including at least a first connector placement site each dedicated to the first signal processing circuit and at least a second connector placement site each dedicated to the second signal processing circuit. The connector placement sites and the output port of the interface multiplexer are electrically connected in series. The connector is installed on one of the connector placement sites.