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VGA to HDMI/DP converter/scaler (Users)

posted by RayeR Homepage, CZ, 31.01.2022, 19:03

Yes I guess there's some catch... HDMI itself should support at minimum resolution 640x480 with at least 25MHz pixel clock. To output lower resolutions it would need set some double-scan or high refresh rate to increase pixel clock above 25MHz. I don't expect a cheap adapter would contain a scaler engine, it just digitize analog input and encode to TDMS and serialize out. So probably some smarter box would be needed. I know about OSSC project but it use some quite expansive FPGA chip, it's aimed on lower resolutions but I didn't find its maximum resolution.

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