TV RGB signal output from a SVGA graphics card  

Category:
Television Circuits
Added on
Aug 5, 2012
The idea to produce a standard TV PAL signal using a SVGA graphics card was born a few years ago, where cheap graphics cards with TV output were still not available. To achieve a CCIR conform TV signal with 50 Hz vertical interlaced refresh and 15.625 kHz horizontal frequency on most SVGA cards its possible to re-program CRT timing and generate output signals outside the normal specification range.
TV RGB signal output from a SVGA graphics card - schematic




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