LVDS-Based SerDes Devices Can Simplify Video Interconnects
by Naresh B Shetty, Senior Analog Mixed-Signal Product Marketing Manager, Intersil Corporation
The techniques that enable automotive video applications highlight many of the challenges a design engineer faces in any system that combines multiple sources with a central display and/or control system. For instance, consider a representative in-vehicle system architecture that includes features such as a navigation aid and one or more entertainment subsystems, including cameras that scan lane-change maneuvers and monitor an object’s proximity to the vehicle’s rear, and enhance night vision.
Connecting these cameras to the video processor that analyzes each image in real-time poses a significant problem within the harsh automotive environment -- especially when each camera may generate high-resolution video signals together with several control signals. Transporting the video over multiple parallel buses would add unacceptable weight and bulk to the car -- not to mention higher system costs with the buses acting as very effective antennas to channel locally generated impulse interference directly into the system electronics.
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