ADV7280-cn

Rev.ADocumentFeedbackInformationfurnishedbyAnalogDevicesisbelievedtobeaccurateandreliable.However,noresponsibilityisassumedbyAnalogDevicesforitsuse,norforanyinfringementsofpatentsorotherrightsofthirdpartiesthatmayresultfromitsuse.Specicationssubjecttochangewithoutnotice.NolicenseisgrantedbyimplicationorotherwiseunderanypatentorpatentrightsofAnalogDevices.Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.OneTechnologyWay,P.O.Box9106,Norwood,MA02062-9106,U.S.A.Tel:[phone]©2013–2014AnalogDevices,Inc.Allrightsreserved.TechnicalSupport位、4倍过采样标清电视视频解码器，支持去隔行ADV7280产品特性支持全球NTSC/PAL/SECAM色彩解调一个10位模数转换器(ADC)，每通道4倍过采样适用于CVBS、Y/C和YPrPb模式模拟视频输入通道，内置片内抗混叠滤波器ADV7280：最多4路输入通道ADV7280-M：最多8路输入通道视频输入支持CVBS(复合)、Y/C(S视频)和YPrPb(分量)NTSC/PAL/SECAM自动检测高达1.47V的共模输入范围解决方案出色的共模噪声抑制能力5线式自适应2D梳状滤波器和CTI视频增强特性自适应数字线路长度跟踪(ADLLT)、信号处理和增强FIFO管理可提供Mini时基校正(TBC)功能集成自动增益控制(AGC)功能，提供自适应峰值白色模式快速切换能力集成隔行-逐行(I2P)视频输出转换器自适应对比度增强(ACE)向下扰动(8位至6位)Rovi(Macrovision)复制保护检测MIPICSI-2输出接口(ADV7280-M)8位ITU-RBT.656YCrCb4:2:2输出和HS、VS或场同步(ADV7280)全功能垂直消隐间隔(VBI)数据分割器提供关断模式双线式I2C兼容型串行接口通过汽车应用认证温度等级：−40°C至+105°C32引脚、5mmx5mmLFCSP封装，符合RoHS标准概述ADV7280/ADV7280-M是功能丰富的单芯片、多格式视频解码器。ADV7280/ADV7280-M可自动检测标准模拟基带视频信号，兼容复合、S视频和分量视频形式的NTSC、PAL和SECAM全球标准信号。ADV7280可将模拟视频信号转换为YCrCb4:2:2视频数据流，其与8位ITU-RBT.656接口标准兼容。ADV7280-M可将模拟视频信号转换为8位、YCrCb4:2:2视频数据流，可通过兼容移动工业处理器接口(MIPI®)的CSI-2接口输出。ADV7280/ADV7280-M的模拟视频输入端支持单端信号。ADV7280提供4路模拟输入，ADV7280-M提供8路模拟输入。ADV7280和ADV7280-M支持I2P转换。ADV7280/ADV7280-M通过双线式串行双向端口(I2C兼容型)进行编程，并且采用1.8VCMOS工艺制造。该解码器提供LFCSP封装选项，非常适合空间受限的便携式应用。应用智能电话/多媒体手机汽车信息娱乐支持视频安全监控的DVR媒体播放器ADI中文版数据手册是英文版数据手册的译文，敬请谅解翻译中可能存在的语言组织或翻译错误，ADI不对翻译中存在的差异或由此产生的错误负责。如需确认任何词语的准确性，请参考ADI提供的最新英文版数据手册。Rev.A|Page2of28产品特性...........................................................................................1应用....................................................................................................1概述....................................................................................................1修订历史...........................................................................................2功能框图..........................................................................................3技术规格..........................................................................................4电气规格......................................................................................4视频规格......................................................................................5模拟规格......................................................................................6MIPI视频输出规格(仅ADV7280-M).....................................6像素端口时序规格(仅ADV7280)...........................................8时钟和I2C时序规格...................................................................9绝对最大额定值...........................................................................10热阻...........................................................................................10回流焊.......................................................................................10ESD警告....................................................................................10引脚配置和功能描述..................................................................11工作原理........................................................................................13模拟前端(AFE).......................................................................13标清处理器(SDP)...................................................................14电源时序控制...............................................................................15最佳上电时序..........................................................................15简化上电时序..........................................................................15ADV7280目录关断时序...................................................................................15通用电源(仅ADV7280)..........................................................15输入网络........................................................................................16输入配置........................................................................................17自适应对比度增强(ACE)..........................................................18I2P功能...........................................................................................19MIPICSI-2输出(仅ADV7280-M)..............................................20ITU-RBT.656Tx配置(仅ADV7280).........................................21I2C端口描述..................................................................................22寄存器映射..............................................................................23PCB布局建议................................................................................25模拟接口输入..........................................................................25电源去耦...................................................................................25VREFN和VREFP引脚............................................................25数字输出(INTRQ、GPO0至GPO2)....................................25裸露金属焊盘..........................................