mwtilden@watmath.UUCP (M.W. Tilden, Hardware) (07/28/86)
hi.
Can anyone out there recommend a single chip that will magically
transform RGB and sync signals into a quality color composite
signal without an incredible amount of support circuitry? The
research I've done has revealed a lot of old and
unavaliable chips but there must be something both new and avaliable.
Any suggestions? Motorola? National?
--
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Mark Tilden | \
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Hardware Design Lab. M.F.C.F \ |
University of Waterloo. \ |
Canada, N2L-3G1 \ |
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work: (519)-885-1211 ext.2457, home: 888-7111 \ |
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UUCP: ..!{utzoo,decvax,ihnp4,allegra}!watmath!mwtilden | \ |
ARPA: mwtilden%watmath%waterloo.csnet@csnet-relay.arpa | \ |
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(so send me mail, why don'cha?) \
"MY OPINIONS, YOU HEAR!? MINE! MINE! MINE! MINE! MINE! AH HAHAHAHAHAHAHAHAHA!!"dick@portal.UUcp (Dick Wotiz) (08/01/86)
I believe Motorola makes the MC1377 for direct RGB to NTSC conversion.
It only needs about a dozen other parts for a complete converter.
I don't know how available it is, the product preview is dated 1982,
so it's probably not obsolete quite yet.
The chip is only $2-3 in small quantities, which seems quite low
given its capabilities.
- - - - - - - - - - - - - - - - -
Dick Wotiz
<sun,atari> ! portal ! dicksandersr@ecn-pc.UUCP (Robert C Sanders) (08/03/86)
In article <406@watmath.UUCP> mwtilden@watmath.UUCP (M.W. Tilden, Hardware) writes: >Can anyone out there recommend a single chip that will magically >transform RGB and sync signals into a quality color composite >signal without an incredible amount of support circuitry? >-- Mark Tilden Please oh Please mail any information to me too!! We have been doing research in this exact area, and are not getting very far! When you mail info, please carbon copy to the following four people: ...!ihnp4!pur-ee!ecn-pc!sandersr (me) ...!ihnp4!pur-ee!sgh (Scott G. Hall) ...!ihnp4!pur-ee!ecn-pc!light (Richard Light) ...!ihnp4!pur-ee!ecn-pc!swain (Phil Swain) And interpolate the above message in its entirety -- they all don't know about this posting, and all of them get more than 50 messages a day. -- Continuing Engineering Education Telecommunications Purdue University ...!ihnp4!pur-ee!pc-ecn!sandersr Let's make like a BSD process, and go FORK-OFF !! -- bob (and "make" a few children while we're at it ...)
grr@cbmvax.cbm.UUCP (George Robbins) (08/07/86)
In article <406@watmath.UUCP> (M.W. Tilden, Hardware) writes: > >Can anyone out there recommend a single chip that will magically >transform RGB and sync signals into a quality color composite >signal without an incredible amount of support circuitry? As has been previsously mentioned the Motorola MC1377 is probably the most available chip for this purpose. It does require a moderate amount of support circuitry, but that's life in the analog universe. The worst problem is that you need a small analog 'delay-line' that is not readily available at the retail level... -- George Robbins - now working with, uucp: {ihnp4|seismo|caip}!cbmvax!grr but no way officially representing arpa: cbmvax!grr@seismo.css.GOV Commodore, Engineering Department fone: 215-431-9255 (only by moonlite)
elg@usl.UUCP (Eric Lee Green) (08/12/86)
In article <406@watmath.UUCP> mwtilden@watmath.UUCP (M.W. Tilden, Hardware) writes: >hi. > >Can anyone out there recommend a single chip that will magically >transform RGB and sync signals into a quality color composite >signal without an incredible amount of support circuitry? The I have a similiar problem. I have a popular computer produced by Toy Computer Inc., which produces an RGB 80 column signal, and a non-standard monochrome signal at higher-than-NTSC scan rate. I only have a monochrome composite monitor. Twould be nice for the twain to meet... the RGB signal sounds like a perfect source to mix and stir a composite signal for my monitor to eat. -- -- Computing from the Bayous, -- Eric Green {akgua,ut-sally}!usl!elg (Snail Mail P.O. Box 92191, Lafayette, LA 70509)