Converters for video (NTSC) to VGA ?
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Posted by Some Guy on November 15, 2005, 10:00 pm
Please log in for more thread options With an increasing supply of old 15-19" CRT-type VGA monitors, I'd rather use them for video monitors (for fixed-output DVD/VCR/CCTV viewing) vs give them away. Are there any chips, schematics, kits, or retail units that do a good job of converting video signals (NTSC, S-Video, or component video) into 15-pin VGA-compatible signals? There has got to be a decent, viable solution here, given the fact that there must be a huge turn-over of CRT monitors in favor of LCD... ? | ||||||||||||||||
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Posted by Frank Raffaeli on November 16, 2005, 4:01 am
Please log in for more thread options Some Guy wrote: usually wants it for $15.00 ;-). To do fair job of converting the S-video into the doubled line rate, you need a device with a good "S" to RGB converter and a field memory + DSP. To do a great job, you need to buffer 4-6 fields, and have a lot more DSP. So good = $20-$40 (BOM cost) and great is twice that much. If you just want to buy something: http://www.google.com/search?hl=en&q=%22video+cheese+box%22&btnG=Google+Search Thanks, Frank Raffaeli http://www.aomwireless.com/ | ||||||||||||||||
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Posted by on November 16, 2005, 6:14 am
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If its a multifrequency monitor, it's possible that a simple chroma conversion and sync seperation circuit might work? But support of CGA timings on VGA monitors is often poor... it's like they'll do it, but the magnetics don't like it and you can hear them complain. Line by line doubling might work? | ||||||||||||||||
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> rather use them for video monitors (for fixed-output DVD/VCR/CCTV
> viewing) vs give them away. Are there any chips, schematics, kits, or
> retail units that do a good job of converting video signals (NTSC,
> S-Video, or component video) into 15-pin VGA-compatible signals?
>
> There has got to be a decent, viable solution here, given the fact
> that there must be a huge turn-over of CRT monitors in favor of LCD...
> ?