Re: RGB to component video cable IIGS?

[mjmahon@aol.com (Michael J. Mahon)]

Supertimer wrote:

> Technically, the IIGS RGB to component video out
> adapter cable should be easier to design than an
> SVGA to component video because TV component
> video operates at the same 15kHz scan frequency
> as the IIGS and component video IS RGB.  ;-)

Yes, it should be pretty straightforward.  The three component
video signals are Luminance (Y), Luminance minus red (Pr),
and Luminance minus blue (Pb).  The Y signal is at the 1 volt
level, with sync, and the Pr and Pb signals are at a fraction
of a volt (0.4?  I forget..).

A relatively simple matrix and buffer circuit should be able
to convert RGB into component video.

-michael

Check out 8-bit Apple sound that will amaze you on my
Home page:  http://members.aol.com/MJMahon/