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摘要：本应用笔记提供了一个视频数字化的概述，并产生频谱边带。文章分析到模拟视频转换成数字视频后面的过程，并解释如何视频重建需要适当的过滤技术。提供的例子，以避免或减少云纹效果和图片文物。

Maxim > App Notes > General Engineering Topics
Keywords: analog, video, reconstruction, moiré, picture, artifacts, digital, quantization, low, pass, filter, anti-alias, converter, ADC, DAC, Sep 18, 2008
clock, sample, boxcar, Nyquist, Standard, Definition, SD, PAL, NTSC, High, HD, ATSC, MPEG

APPLICATION NOTE 4287
Reconstructing Analog Video with the Maxim Video Filter Family
By:Bill Laumeister


Abstract:This application note provides an overview of video digitization, and the spectrum and sidebands produced. The article
examines the process of converting digital video back into analog video and explains how video reconstruction requires proper
filtering techniques. Examples are provided to avoid or minimize moiré effects and picture artifacts.


Introduction
Once analog video is capt

关键词： Maxim   analog   video   reconstruction   moiré   picture   artifacts   digital   quantization   low   pass   filter   anti-alias   converter   ADC   DAC   clock   sample   boxcar   Nyquist   Standard   Definition   SD   PAL   NTSC   High   HD   ATSC   MPEG