Renesas Introduces New Four-Channel Video Decoder Enabling In-Car Cameras for Economical Surround View Applications
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Update time : 2024-02-18 09:57:02
Renesas Electronics (TSE: 6723), a global provider of semiconductor solutions, today announced the launch of the newest device in its Automotive High Definition Link (AHL) portfolio, the RAA279974, which enables automotive manufacturers to deliver high-definition (HD) video over low-cost cables and connectors. The new RAA279974 four-channel AHL video decoder handles four input sources simultaneously, making it an economical solution for surround view and multi-camera applications.
Renesas AHL technology transmits video based on modulated analog signals. Its frequency is 10 times lower than digital transmission solutions currently on the market (about 37MHz for the former and 3GHz or higher for the latter), which gives it strong noise immunity and enables longer transmission distances (20-30 meters) using unshielded twisted-pair cables and standard connectors, as well as support for existing standard-definition analog video cables and connectors. The use of unshielded twisted-pair cable not only saves money, but is also easier to wire in the car and lighter in weight, resulting in energy efficiency and performance improvements. Digital links such as SerDes, on the other hand, require highly shielded cables and high-end connectors that cost far more than AHL and may need to be replaced after five to seven years.
The introduction of the RAA279974 completes the AHL product family, which includes the RAA279971 single-channel AHL video encoder and the RAA279972 single-channel AHL video decoder. The RAA279974 is an important addition to the AHL product family, given that most OEMs want to support multiple cameras in their vehicles for applications such as surround view parking assist monitors.The AHL can be paired with R-Car automotive SoCs, RH850 MCUs, automotive PMICs, and analog components to cost-effectively implement a number of safety features in a variety of vehicles. Renesas has combined these products to create a wide range of "winning portfolios" that enable manufacturers to quickly implement pre-tested video designs.
Multi-camera based safety systems are quickly becoming a must-have feature for many consumers," said Davin Lee, Vice President of the Analog & Connectivity Product Group. including economy models, to offer these features on all new vehicles."
AHL delivers strong noise immunity and excellent picture quality. Thanks to the fundamental qualities of analog signals, AHL video transmissions have superior resistance to noise and interference. While digital links can suffer from image loss due to any noise or interface, AHL will retain a good live image in such environments, providing a solution for greater security.
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