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Signal bandwidth vs. resolution for analog video

Posted: 26 May 2008 ?? ?Print Version ?Bookmark and Share

Keywords:application note? analog video? signal bandwidth?

Unlike traditional signals such as audio, where information is carried in the amplitude of the signal over time, video signals carry the image information in both the value and position of each image pixel over time. The large amount of information embedded in the video signal makes its spectrum a lot wider compared with similar baseband signals such as audio. This requires special attention when designing video systems to ensure that the information contained in the video signal is transmitted from the source to the receiver with minimum degradation of the image quality. This application note by Ferenc Barany of Analog Devices provides an overview of video signal bandwidth requirements and describes how to estimate the minimum and maximum frequencies from its spectrum.

View the PDF document for more information.





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