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Enabling Enhanced Exterior Vehicle Perception in ADAS and AVs with Gigabit Multimedia Serial Link (GMSL)

Event: AutoSens Brussels
| Published: September 2022
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Kevin Witt

Analog Devices

Advanced Driver Assistance Systems (ADAS) based on cameras and radars need to be connected safely and securely to the ADAS processors with serial-links that minimize the cost, weight, and complexity of vehicle cable harnesses.
Gigabit Multimedia Serial Link (GMSL) is widely used in vehicles for video interconnects. Three generations of GMSL with data rates up to 12Gb/s over a single cable are in volume production today. GMSL’s high-speed serial link solution enables small low-power camera modules and provides functional safety; enabling, more of the camera module’s size, power, and thermal budget to be allocated to the camera sensor and Integrated Sensor Processor (ISP.)
We present key considerations in the design of automotive camera interconnect architectures as we look toward to a future of sensor fusion and central processing – including a typical vehicle ADAS architecture, a discussion of automotive cables, connectors, and the role of high-speed serial links in these systems.

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