----- Original Message -----
From: "Neil Harris" <neil@tonal.clara.co.uk>
High prices are more likely to do with the small market for such devices, than to do with the cost of the underlying technology.
Sure. Not being on the consumer part of the S-curve will kill you.
It isn't so much genlock, as accurate pixel clock recovery, that's the hard thing.
That's the fundamental component of genlock, I think, isn't it?
It is indeed hard to do well, but fortunately the chipmakers have done all that for you. It's a common enough need (think flat panel monitors) that there are inexpensive single-chip solutions for it that not only do the A/D conversion, but handle the pixel clock recovery for you as well: see, for example, the Analog Devices AD9884A or ADV7441A.
Yeah; I knew (or was pretty sure) that it was down to the chip level at this point, but as you say, for driving the price down, there's nothing like the single-chip solution, and this is apparently just far enough off the edge of the popularity curve that it's not in any single-chip solutions (that I know of, and board-level hardware isn't really my game). Cheers, -- jra -- Jay R. Ashworth Baylink jra@baylink.com Designer The Things I Think RFC 2100 Ashworth & Associates http://baylink.pitas.com 2000 Land Rover DII St Petersburg FL USA http://photo.imageinc.us +1 727 647 1274