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

时间： 2021-08-06 来源：Renesas

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

July 13, 2021, TOKYO, Japan ― 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 an increasingly important in-car safety system 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.

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 rearview 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 a 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

发送到邮箱 |
+1 赞 0
收藏
评论 0
| 转发至：

本文由翊翊所思转载自Renesas，原文标题为:New Renesas Solution For Automotive Cameras Enables High-Definition Video Using Low-Cost Cables and Connectors，本站所有转载文章系出于传递更多信息之目的，且明确注明来源，不希望被转载的媒体或个人可与我们联系，我们将立即进行删除处理。

平台合作

提交评论

全部评论（0）

暂无评论

New Automotive High-Definition Link Lowers High-Definition Camera System Costs

To facilitate a cost-effective camera implementation in the vehicle, Renesas designed a technology which leverages the low-cost infrastructure used in traditional analog SD camera systems, while providing the picture quality and higher resolutions desired in today’s applications. AHL supports MIPI-CSI2, DVP, and BT.656 interfaces as inputs on the RAA279971, and as outputs on the RAA279972. It transmits excellent video quality at distances up to 30 meters with multiple in-line connectors. Renesas has user friendly evaluation boards, application notes, and IC samples available upon request.

2021-08-19 - 新产品

【产品】瑞萨新推全新汽车AHL编码芯片及解码芯片，用传统低成本电缆和连接器实现高清视频传输

2021年7月13日，全球半导体解决方案供应商瑞萨电子集团宣布，推出全新汽车高清链路（AHL）技术——新款RAA279971 AHL编码芯片以及RAA279972解码芯片，使汽车制造商能够通过目前支持标清视频的低成本线缆和连接器传输高清视频。

2021-07-14 - 新产品

【经验】serdes芯片技术总结

在无延时高清摄像头视频传输过程中，美信的GMSL技术应用广泛，对应的ROHM采用的Clockless-BD技术，而瑞萨有AHL模拟高清技术，类似的国产瑞盟科技，天津瑞发科的低频压缩低延时传输技术都是高清摄像头视频传输技术，本文主要总结下某厂牌的GMSL，ROHM Clockless-BD，以及瑞萨AHL芯片。

2023-06-22 - 设计经验

【经验】快速倒车功能开发：CVBS摄像头接入decoder芯片转BT656接入到R CAR H3后DU显示输出的修改点

驾驶舱系统一般都需要做快速倒车显示功能，Renesas R CAR H3开发快速倒车功能的时候使用的是R7核跑freertos,在freertos中操作摄像头输入，以及DU显示来实现快速显示倒车摄像头视频，本文记录在开发CVBS摄像头接入decoder芯片转BT656接入到R CAR H3后，通过DU显示输出的修改点。

2020-12-14 - 设计经验

RL78/G23 ELCL曼彻斯特解码器功能

本应用笔记介绍了如何使用逻辑和事件链接控制器（ELCL）解码曼彻斯特码。通过使用ELCL，可以将软件实现的函数转换为硬件实现，从而减少资源（如ROM、RAM等）的使用。笔记涵盖了硬件配置、软件设置、示例程序和配置文件等详细信息，适用于RL78/G23微控制器。

RENESAS - FAST PROTOTYPING BOARD,逻辑和事件链接控制器,ELCL MANCHESTER DECODER,曼彻斯特解码器,LOGIC AND EVENT LINK CONTROLLER,MCU,单片机,快速原型板,RTK7RLG230CLG000BJ,RL78/G23,R7F100GLG,RL78

Mar.24.22 - 应用笔记或设计指南 - Rev.2.00

RAA278842、RAA278843 LCD视频处理器，带解码器、LVDS、TTL、MIPI、图像增强和视频完整性诊断数据

RENESAS - LCD VIDEO PROCESSOR,LCD视频处理器,RAA2788423HFP,RAA278842,RAA2788423HFP#AA0,RAA278843,RAA2788433HFP,RAA2788433HFP#AA0,PORTABLE/CONSUMER DISPLAYS,汽车显示器,工业/军事显示器,便携式/消费类显示器,INDUSTRIAL/MILITARY DISPLAYS,AUTOMOTIVE DISPLAY

Apr.16.20 - 数据手册 - Rev.1.01

RAA278840 LCD视频处理器，带解码器、LVDS、TTL、MIPI、改进的升级引擎和视频完整性诊断

RENESAS - LCD VIDEO PROCESSOR,LCD视频处理器,RAA278840,RAA2788403HFP#AA0,CONSUMER DISPLAYS,工业显示器,便携式显示器,消费显示器,PORTABLE DISPLAYS,INDUSTRIAL DISPLAYS,AUTOMOTIVE LCD APPLICATIONS,汽车显示器,汽车LCD应用,MILITARY DISPLAYS,军事展示,AUTOMOTIVE DISPLAY

Jul.17.20 - 数据手册 - Rev.1.01 查看更多版本

TW9900 Low Power NTSC/PAL/SECAM Video Decoder with VBI Slicer

TW9900是一款低功耗NTSC/PAL/SECAM视频解码器芯片，适用于便携式应用。它具有低功耗、高集成度、多种视频标准支持等特点，能够将模拟CVBS或S-视频信号解码为数字8位4:2:2 YCbCr信号输出。

RENESAS - LOW POWER NTSC/PAL/SECAM VIDEO DECODER WITH VBI SLICER,带VBI切片器的低功耗NTSC/PAL/SECAM视频解码器,TW9900,专为便携式应用而设计,DESIGNED FOR PORTABLE APPLICATIONS

April 7, 2016 - 数据手册 - Rev 5.00

TW8836 LCD视频处理器，内置解码器、TTL/LVDS输入、MCU、OSD和TTL/LVDS面板接口

RENESAS - LCD VIDEO PROCESSOR,高度集成的LCD视频处理器,时序控制器（TCON）,LCD视频处理器,触摸屏控制器,TOUCH SCREEN CONTROLLER,TIMING CONTROLLER (TCON),MCU,HIGHLY INTEGRATED LCD VIDEO PROCESSOR,单片机,TW8836AT-LB2-GE,TW8836,IN-CAR DISPLAY,PICO PROJECTOR,PICO PROJECTORS,PORTABLE DVR PLAYERS,便携式媒体播放器,PORTABLE DISPLAY APPLICATIONS,便携式DVR播放器,PORTABLE MEDIA PLAYER,PORTABLE DVD PLAYERS,微型投影機,IN-CAR LCD DISPLAY APPLICATIONS,车内显示器,微型投影机,便携式DVD播放器,便携式显示应用,车载LCD显示器应用

Apr 14, 2022 - 数据手册 - Rev 8.01

RAA279972汽车高清链接解码器

RAA279972是一款专为汽车应用设计的高清模拟视频解码器，支持单端、差分和伪差分模拟复合高清AHL视频输入。它具有10位视频ADC，可以将信号转换为数字，并使用专有的AHL自适应梳状滤波器分离亮度和色度数据，通过两车道MIPI-CSI2接口、DVP或BT.656并行接口输出YUV422数字视频信号。RAA279972集成了短路到电池和短路到地检测以及图像增强功能，是高分辨率汽车摄像头应用的理想解决方案。

RENESAS - 高清模拟视频解码器,汽车高清晰度链接解码器,AUTOMOTIVE HIGH DEFINITION LINK DECODER,HIGH-DEFINITION ANALOG VIDEO DECODER,RAA279971,RAA279972,AUTOMOTIVE APPLICATIONS,AUTOMOTIVE BACKUP CAMERA DISPLAY,汽车应用,汽车倒车摄像头显示屏

May 6, 2021 - 数据手册 - Rev.1.0

CD4028BMS CMOS BCD到十进制解码器

CD4028BMS是一款BCD至十进制或二进制至八进制的译码器，具有高驱动能力、中等速度操作和标准化的对称输出特性。该产品适用于代码转换、指示管译码和地址译码等应用。

RENESAS - CMOS BCD-TO-DECIMAL DECODER,CMOS BCD到十进制译码器,CD4028BMS,指示管解码器,ADDRESS DECODING - MEMORY SELECTION CONTROL,CODE CONVERSION,代码转换,INDICATION-TUBE DECODER,地址解码-存储器选择控制

December 1992 - 数据手册 - Rev 0.00

TW8836 LCD Video Processor with Built-In Decoder, TTL/LVDS Inputs, MCU, OSD, and TTL/LVDS Panel Interface

TW8836是一款高度集成的LCD视频处理器，集成了视频解码器、RGB ADC、数字输入接口、缩放器、去隔行器、OSD、高性能MCU和面板接口等功能，支持1080p输入分辨率和1366x768输出分辨率，适用于车载LCD显示系统和便携式显示应用。

RENESAS - LCD VIDEO PROCESSOR WITH BUILT-IN DECODER, TTL/LVDS INPUTS, MCU, OSD, AND TTL/LVDS PANEL INTERFACE,带内置解码器、TTL/LVDS输入、MCU、OSD和TTL/LVDS面板接口的LCD视频处理器,TW8836AT-LB2-GE,TW8836,IN-CAR DISPLAY,PORTABLE DVD AND DVR PLAYERS,便携式DVD和DVR播放机,车内显示器,PICO PROJECTOR AND PORTABLE MEDIA PLAYER,PICO投影仪和便携式媒体播放器

November 3, 2016 - 数据手册 - Rev 5.00

RAA279971汽车模拟高清晰度链接编码器

RENESAS - AUTOMOTIVE ANALOG HIGH DEFINITION LINK ENCODER,HIGH-DEFINITION ANALOG VIDEO ENCODER,高清模拟视频编码器,汽车模拟高清晰度链接编码器,RAA279971,RAA279972,RAA278842,AUTOMOTIVE APPLICATIONS,AUTOMOTIVE SURROUND VISION CAMERA DISPLAY,AUTOMOTIVE BACKUP CAMERA DISPLAY,汽车应用,汽车环视摄像头显示器,汽车倒车摄像头显示屏

May 6, 2021 - 数据手册 - Rev.1.0

TW8834 LCD Video Processor with Built-in Decoder, LVDS andTTL Inputs, BT.656 Output, and LVDS Panel Interface

TW8834是一款高度集成的LCD视频处理器，集成了多种关键功能，如2D视频解码器、LVDS和TTL输入接口、高品质缩放器、OSD引擎和多种输出面板接口。它支持高达1080p的输入分辨率和1366 x 768的LCD面板驱动，适用于汽车显示系统等应用。

RENESAS - 带内置解码器、LVDS和TTL输入、BT.656输出和LVDS面板接口的LCD视频处理器,LCD VIDEO PROCESSOR WITH BUILT-IN DECODER, LVDS AND TTL INPUTS, BT.656 OUTPUT, AND LVDS PANEL INTERFACE,TW8834AT-TA2-GR,TW8834,汽车显示系统,AUTOMOTIVE DISPLAY SYSTEMS

September 25, 2014 - 数据手册 - Rev. 2.00

TW8836 LCD视频处理器，带内置解码器、TTL/LVDS输入、MCU、OSD和TTL/LVDS面板接口

RENESAS - LCD VIDEO PROCESSOR,TTL/LVDS面板接口,LCD视频处理器,TTL/LVDS PANEL INTERFACE,TW8836,IN-CAR DISPLAY,PICO PROJECTOR,微型投影機,DVR PLAYERS,便携式DVD,便携式媒体播放器,车内显示器,DVR播放器,PORTABLE MEDIA PLAYER,PORTABLE DVD

Aug 8, 2019 - 数据手册 - Rev 8.00 查看更多版本