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For more than 30 years, Cabling Installation & Maintenance has provided useful, practical information to professionals responsible for the specification, design, installation and management of structured cabling systems serving enterprise, data center and other environments. These professionals are challenged to stay informed of constantly evolving standards, system-design and installation approaches, product and system capabilities, technologies, as well as applications that rely on high-performance structured cabling systems. Our editors synthesize these complex issues into multiple information products. This portfolio of information products provides concrete detail that improves the efficiency of day-to-day operations, and equips cabling professionals with the perspective that enables strategic planning for networks’ optimum long-term performance.

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New Renesas Solution For Automotive Cameras Enables High-Definition Video Using Low-Cost Cables and Connectors

Automotive HD Link (AHL) Complements Other Renesas Products in Auto Safety Systems; Includes Unique Control Channel That Initializes, Programs and Monitors the Camera Function

Renesas Electronics Corporation (TSE:6723), a premier supplier of advanced semiconductor solutions, today introduced its new Automotive HD Link (AHL) technology that enables automotive manufacturers to deliver high-definition video over low-cost cables and connectors that currently support standard-definition video. HD video is increasingly important in car safety systems for object recognition functionality. Renesas is a leader in the Advanced Driver Assist Systems (ADAS) market, and AHL can be paired with other Renesas products, such as the R-Car Automotive SoCs, RH850 MCUs, automotive PMICs, and analog components to cost-effectively implement numerous safety features in virtually any vehicle.

This press release features multimedia. View the full release here: https://www.businesswire.com/news/home/20210713005146/en/

Renesas Automotive HD Link (AHL) Allows Low-Cost Cables and Connectors to Transmit HD Video (Graphic: Business Wire)

Renesas Automotive HD Link (AHL) Allows Low-Cost Cables and Connectors to Transmit HD Video (Graphic: Business Wire)

The new RAA279971 AHL encoder and RAA279972 decoder use a modulated analog signal to transmit the video, enabling transmission rates 10 times less than required to transmit HD signals digitally. The lower transmission rate means that traditional twisted pair cables and standard connectors can be used, as can existing analog video cables and connectors. On the other hand, digital links such as SerDes require heavily shielded cables and high-end connectors that cost significantly more than those for AHL, may require replacement after 5-7 years and are difficult to route due to bending radius limitations.

AHL is robust against noise and has a bi-directional control channel that operates independent of the video data and can initialize, program, and monitor the camera module. A key AHL performance and cost reducing feature is the ability to control the camera simultaneously over the same pair of wires (UTP) during video transmission. Another safety benefit of AHL is its performance in comparison to a digital link. In a rear view camera application, a digital link will degrade due to a failure in the cable harness or connector assembly, as weak signals can cause macroblocks to appear, hiding large portions of the viewing area. Using the same cable under the same conditions for comparison, the AHL link will present a slight change in video color or contrast, but all pixels will appear on the screen, and the image will precisely identify an object or person behind the vehicle.

“Advanced safety systems are no longer only available in luxury vehicles,” said Niall Lyne, Vice President of the Automotive Analog Power and Video Business Division at Renesas. “The AHL system enables our automotive customers to now deliver these features in all new vehicles, including economy models.”

Key Features of AHL

  • Supports resolutions from VGA up to 720p/60 or 1080p/30 for flexibility to implement non-standard vertical resolutions (not just the TV video standard 16:9 resolutions)
  • MIPI-CSI2, BT656, & DVP inputs and outputs provide flexible interface to support old and new image sensors
  • Requires only 27MHz crystal clock, with internal PLLs able to generate the necessary clock frequencies for higher resolutions

Availability

The new RAA279971 AHL encoder and RAA279972 decoder are available today. Renesas also offers the RTKA279971DA2000BU AHL Encoder and the RTKA279972DA1000BU AHL Decoder evaluation boards. More information about AHL is available at www.renesas.com/AHL.

About Renesas Electronics Corporation

Renesas Electronics Corporation (TSE: 6723) delivers trusted embedded design innovation with complete semiconductor solutions that enable billions of connected, intelligent devices to enhance the way people work and live. A global leader in microcontrollers, analog, power, and SoC products, Renesas provides comprehensive solutions for a broad range of automotive, industrial, Infrastructure, and IoT applications that help shape a limitless future. Learn more at renesas.com. Follow us on LinkedIn, Facebook, Twitter, and YouTube.

All names of products or services mentioned in this press release are trademarks or registered trademarks of their respective owners.

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