TI TVP5158四路NTSC(PAL)视频译码解决方案
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.
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