分享一个不错的TVP5158四路NTSC(PAL)视频译码解决方案

1695 TVP5158

问答对人有帮助，内容完整，我也想知道答案 0 本文介绍了TVP5158，TVP5157和TVP5156主要特性与方框图，TVP5158视频和音频输入连接图，以及评估模块TVP5158EVM主要特性和方框图，系统级框图和电路图。 0
2021-6-2 06:55:43　　评论淘帖0 邀请回答您可以邀请以下用户，快速回答问题 × ChristineGu 该类别下有 16 个回答。邀请回答 HengDu 该类别下有 16 个回答。邀请回答 heks 该类别下有 16 个回答。邀请回答 dfasda 该类别下有 15 个回答。邀请回答 nhonglan 该类别下有 15 个回答。邀请回答 yonglanzhang 该类别下有 15 个回答。邀请回答杀狼000 该类别下有 14 个回答。邀请回答 wenminglang 该类别下有 14 个回答。邀请回答 C880U 该类别下有 14 个回答。邀请回答 jhdfvs 该类别下有 14 个回答。邀请回答 chm5 该类别下有 14 个回答。邀请回答 muwersddg 该类别下有 14 个回答。邀请回答 hrtuoyu 该类别下有 13 个回答。邀请回答 hfgdzc 该类别下有 13 个回答。邀请回答 thyysbk 该类别下有 13 个回答。邀请回答凡人wlj 该类别下有 13 个回答。邀请回答 kszdj113 该类别下有 13 个回答。邀请回答飞雪9366 该类别下有 13 个回答。邀请回答 billbian 该类别下有 13 个回答。邀请回答 a732538 该类别下有 13 个回答。邀请回答举报王秀兰相关推荐 • TVP5158以及TVP7002即将停产？ 1773 • C6678与TVP5158互联 1569 • 为什么官方的内核里面没有TVP5158的驱动？驱动要如何获得？ti_tools里面有一个hdvpss的工具是做什么用的？ 1967 • 给DM8168两路视频数据1080P和640x480逐行，在正常运行一段时间后640x480就没数据了，是什么原因导致的？ 254 • DM8148+TVP5158 图像颜色不正常问题 2524 • TMDXEVM8148开发板，请问如何购买VS子卡(四片TVP5158)？ 1608 • 请问DM8168上使用TVP5158芯片，是否在编译内核时需将TVP5158编译进内核才可以使用，还是不需编译进内核就可以使用？ 2027 • 用DM3730+TVP5158开发视频程序，在网上下载的TVP5158在DM6467的驱动程序没有bootloader是怎么回事？ 1305 • 请问隔行或逐行的视频数据经过TVP5158解码后都是隔行输出？ 1883 • ti8168 tvp5158 hdvpss驱动代码运行时阻塞 1333 1个回答

答案对人有帮助，有参考价值 0 　　TI公司的TVP5158， TVP5157和TVP5156是四路NTSC/PAL视频译码器，具有单独的定标器，降噪，自动对比度调整，以及灵活的输出格式编制器.TVP5158提供和 DaVinci™处理器的音频和视频连接，视频输出端支持8位ITU-R BT.656 和16位4:2：2 YCbCr，模拟/数字核和I/O的电压分别是不1.1V/1.8V和3.3V，主要用在数字视频记录仪/服务器和PCI产品，汽车娱乐视频集线器，视频墙显示器和游戏系统。本文介绍了TVP5158，TVP5157和TVP5156主要特性与方框图，TVP5158视频和音频输入连接图，以及评估模块TVP5158EVM主要特性和方框图，系统级框图和电路图。　　The TVP5158， TVP5157， and TVP5156 devices are 4-channel high-quality NTSC/PAL video decoders that digitize and decode all popular base-band analog video formats into digital video output. Each channel of this decoder includes 10-bit 27-MSPS A/D converter （ADC）。 Preceding each ADC in the device， the corresponding analog channel contains an analog circuit that clamps the input to a reference voltage and applies the gain. 　　Composite input signal is sampled at 2x the ITU-R BT.601 clock frequency， line-lockednment， and is then decimated to the 1x pixel rate. CVBS decoding uses five-line adaptive comb filtering for both the luma and chroma data paths to reduce both cross-luma and cross-chroma artifacts. A chroma trap filter is also available. On CVBS inputs， the user can control video characteristics such as contrast， brightness， saturation， and hue via an I2C host port interface. Furthermore， luma peaking （sharpness） with programmable gain is included. 　　All 4 channels are independently controllable. These decoders share a single clock input for all channels and for all supported standards. 　　TVP5158 provides a glueless audio and video interface to TI DaVinci™ video processors. Video output ports support 8-bit ITU-R BT.656 and 16-bit 4:2：2 YCbCr with embedded synchronization. TVP5158 supports multiplexed pixel-interleaved and line-interleaved mode video outputs with metadata insertion. 　　TVP5158 and TVP5157 integrate 4-Ch audio ADCs to reduce the BOM cost for surveillance market. Multiple TVP5158 devices can be cascade connected to support up to 8-Ch Video or 16-Ch audio processing. 　　Noise reduction and auto contrast functions improve the video quality under low light condition which is very critical for surveillance products. 　　The TVP5158， TVP5157， and TVP5156 can be programmed by using a single I2C serial interface. I2C commands can be sent to one or more decoder cores simultaneously， reducing the amount of I2C activity necessary to configure each core. This is especially useful for fast downloading modified firmware to the decoder cores. 　　TVP5158， TVP5157， and TVP5156 use 1.1-V， 1.8-V， and 3.3-V power supplies for the analog/digital core and I/O. These devices are available in a 128-pin TQFP package. 　　TVP5158主要特性：　　15.gif 　　TVP5158应用：　　• Security/surveillance digital video recorders/servers and PCI products 　　• Automotive infotainment video hub 　　• Large format video wall displays 　　• Game systems 　　14.gif 　　图1.TVP5158功能框图　　13.gif 　　图2.TVP5158视频输入连接图　　12.gif 　　图3.TVP5158音频输入连接图　　评估模块TVP5158EVM 　　The TVP5158EVM evaluation module is used to demonstrate the TVP5158. The TVP5158 is a Four-Channel NTSC/PAL Video Decoder with Independent Scalers， Noise Reduction， Auto Contrast， and Flexible Output Formatter for Security and other Multi-Channel Video Applications. 　　Composite input signal is sampled at 2x the ITU-R BT.601 clock frequency， line-lockednment， and is then decimated to the 1x pixel rate. CVBS decoding uses five-line adaptive comb filtering for both the luma and chroma data paths to reduce both cross-luma and cross-chroma artifacts. A chroma trap filter is also available. On CVBS inputs， the user can control video characteristics such as contrast， brightness， saturation， and hue via an I2C host port interface. furthermore， luma peaking （sharpness） with programmable gain is included. 　　All 4 channels are independently controllable. These decoders share a single clock input for all channels and for all supported standards. 　　TVP5158 provides a glueless audio and video interface to TI DaVinci™ video processors. Video output ports support 8-bit ITU-R BT.656 and 16-bit 4:2：2 YCbCr with embedded synchronization. TVP5158 supports multiplexed pixel-interleaved and line-interleaved mode video outputs with metadata insertion. TVP5158 integrates 4-Ch audio ADCs to reduce the BOM cost for surveillance market. Multiple TVP5158 devices can be cascade connected to support up to 8-Ch Video or 16-Ch audio processing. 　　评估模块TVP5158EVM指标：　　The TVP5158EVM was designed for ease of use to minimize set up time while providing an evaluation system for the TVP5158 video decoder. 　　The TVP5158EVM includes the TVP5158 NTSC/PAL Video Decoder Board Module， a universal 5V power supply and a video data cable that connects to a DM6467 EVM. 　　It also includes a Windows™ compatible application called WinVCC （Windows Video Control Center）。 WinVCC communicates with the TVP5158EVM via I2C through a USB port connection and provides the means for manipulating system register settings. This software is provided with the TVP5158EVM. 　　　　图4.评估模块TVP5158EVM外形图　　评估模块TVP5158EVM主要特性：　　Supports Four CVBS inputs and Four Audio inputs 　　Supports ITU-R BT.656 digital outputs or 16-bit 4:2：2 YCbCr with embedded synchronization for multi-channel evaluations （requires a DM6467EVM - not provided）Provides re-encoded single channel video outputs via a video encoder for image quality evaluation 　　Easy to use EVM system 　　Easy to use Windows based software 　　Provides default register configuration for easy setup 　　Supports user-customizable register configurations to support development efforts 　　Support Software 　　TVP5158 EVM Software Version 6.10（zip 9 MB）　　10.gif 　　图5.评估模块TVP5158EVM外形图方框图　　9.gif 　　图6.评估模块TVP5158EVM系统级框图　　8.gif 　　图7.评估模块TVP5158EVM电路图（1）　　7.gif 　　图8.评估模块TVP5158EVM电路图（2）　　6.gif 　　图9.评估模块TVP5158EVM电路图（3）　　5.gif 　　图10.评估模块TVP5158EVM电路图（4）　　4.gif 　　图11.评估模块TVP5158EVM电路图（5）　　3.gif 　　图12.评估模块TVP5158EVM电路图（6）　　2.gif 　　图13.评估模块TVP5158EVM电路图（7）　　1.gif 　　图14.评估模块TVP5158EVM电路图（8）　　详情请见：　　sleu108.pdf（3.07 MB）2012-9-3 13:13 上传　　-1 　　和sles243f.pdf（1.51 MB）2012-9-3 13:11 上传　　-1

2021-6-2 17:09:54 评论举报倪梁靓