Amiga video to component video or VGA?

On Tue, Sep 15, 2009 at 21:33, Joe Giliberti <starbase89 at gmail.com> wrote: The 23-pin video connector outputs analog RGB - european TVs with SCART can be hooked up with an adapter, IIRC. Nowadays, Component video (YCrCb?) is common on midrange sets here in North America. I have seen schematics for a RGB-to-Component converter, basically 3 opamps doing the linear transformation. If I do some digging in my files, I may have kept a copy (I just found it by googling). I've been considering this, though - the output from denise (U4 on page F-6 in "Introduction to the Amiga 500) is basically 12-bit RGB (4 bits each) into the video Hybrid HY1, which is basically a D/A converter. Wouldn't it be possible to program a PAL/GAL/FPGA/Fast EPROM to do the transformation in digital space (one big 12-bit to 12-bit lookup table)? (Basically replace the U40 and U41 buffers) If 4-bit-each resolution is no good in the YCrCb space, fast 6 or 8-bit D/A's should be easy to get off the shelves these days, no? Joe. -- Joachim Thiemann :: http://www.tsp.ece.mcgill.ca/~jthiem