
KD teams for first 10GBASE-AU camera with optical fibre connectivity

Spanish chip designer KD is working with Leopard Imaging and Corning on the first automotive multigigabit vision system using optical fibre.
The design is the first implementation of the 10GBASE-AU KD7251 optical transceiver into an optical automotive multigigabit camera, the LI-VENUS-ISX031-BASE-AU from Leopard Imaging. This used a hybrid cable and connector system developed by Corning using its automotive grade cables and connectors.
The design upgrades the existing wide angle camera system from a traditional GMSL2 copper interface to an optical fibre-based 10GBASE-AU link that is compliant with the IEEE 802.3cz standard for scalable data communications up to 10 Gbit/s. This can be used for autonomous driving, assisted driving (ADAS), digital video recording, and machine vision.
The KD7251, qualified to ISO26262 ASIL-B also supports displays with the DSI-2 interface and AI accelerators via the PCIe 3.0 interface, and the same cables and connectors can be used for 25Gbit/ and 50Gbit/s versions of the standard.
“This highlights the ability of our KD7251 transceiver to operate within compact automotive camera modules (sub-20×20 mm PCB), while enabling extended link distances up to 40 metres,” said David Sánchez, Hardware Designer at KD, and project manager of the technology collaboration.
“By using glass optical fibre, we eliminate Electromagnetic Compatibility (EMC) challenges, reduce cable weight, and support asymmetric link speeds to optimize power consumption. This innovation is key for next-generation in-vehicle networks, where high bandwidth, low latency, and interference-free data links are critical.”
The camera weighs only 162 grams and uses the Sony Diagonal 7.45 mm (Type 1/2.42) CMOS image sensor ISX031. Incorporating Corning’s cable and connector system allows for improved access to complex positions like the inside of a side mirror, with the cable lengths of up to 40 metres without loss of data transmission quality
