nanog mailing list archives
Re: Laptop with reverse VGA
From: Jay Ashworth <jra () baylink com>
Date: Tue, 21 Feb 2012 12:45:02 -0500 (EST)
----- 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
Current thread:
- Re: WW: Colo Vending Machine, (continued)
- Re: WW: Colo Vending Machine Jay Ashworth (Feb 20)
- Re: WW: Colo Vending Machine Mario Eirea (Feb 20)
- Laptop with reverse VGA Jussi Peltola (Feb 20)
- Re: Laptop with reverse VGA Faisal Imtiaz (Feb 20)
- Re: Laptop with reverse VGA Jon Lewis (Feb 20)
- RE: Laptop with reverse VGA Scott Berkman (Feb 20)
- RE: Laptop with reverse VGA Mario Eirea (Feb 20)
- Re: Laptop with reverse VGA Jake Khuon (Feb 20)
- Re: Laptop with reverse VGA Jay Ashworth (Feb 21)
- Re: Laptop with reverse VGA Neil Harris (Feb 21)
- Re: Laptop with reverse VGA Jay Ashworth (Feb 21)
- Re: Laptop with reverse VGA Jussi Peltola (Feb 21)
- Re: WW: Colo Vending Machine Jimmy Hess (Feb 21)
- Re: WW: Colo Vending Machine Joe Greco (Feb 20)
- Re: WW: Colo Vending Machine Jon Lewis (Feb 20)
- Re: WW: Colo Vending Machine Jussi Peltola (Feb 20)
- Re: WW: Colo Vending Machine Jay Ashworth (Feb 20)
- Re: WW: Colo Vending Machine Robert Bonomi (Feb 20)
- Re: WW: Colo Vending Machine Owen DeLong (Feb 21)
- Re: WW: Colo Vending Machine Dale Shaw (Feb 29)
- RE: WW: Colo Vending Machine Nathan Eisenberg (Feb 29)