![]() ![]() If you multiply horizontal pixels by vertical pixels by the refresh rate and call that the bandwidth. We'll start with where dividing by 2 comes from. So we want to know where Extron is getting their 1.5x factor, or divide by 2 and multiply by 3. ![]() I just want a solid understanding of video signal bandwidth as I frequently use custom resolutions and refresh rates, so want to fully understand what these products can handle. Thirdly, why does it still not match the numbers provided for the first product I linked to? Is it just that 2048x1536 72Hz is the highest "relatively standard" display configuration that doesn't exceed 400MHz? Or are they actually using a different calculation? Because the way I'm calculating it, 400MHz could handle 2048x1536 84Hz. So secondly, where does the extra 1.5x factor (result/2*3 from this page again) come from? which is closer to the listed 400MHz than the calculation I intuitively expected: Thus, the signal frequency of 72Hz 2048 x 1536 video would be calculated as: This page, however, says the actual calculation is 3. Intuitively, I thought video signal bandwidth would be simply pixels multiplied by refresh rate. So firstly, are the terms "pixel bandwidth", "pixel frequency", "signal bandwidth", and "signal frequency" interchangeable in the context of analog video signal transmission? Still elsewhere I've seen "pixel bandwidth" and "signal frequency". Other products ( example) list a "pixel frequency". I want to determine the exact meaning of the listed bandwidth of products like this (lists 400MHz bandwidth/2048x1536 72Hz). Trying to clear up a number of things here. ![]()
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