Need chroma demodulator ic
Need chroma demodulator ic
(OP)
Working on a new SD/HD-TV toy. I need to split an NTSC composite video signal (yellow RCA cable out of most video components) into either component (YCbCr) or RGB video lines. Much to my surprise, I'm having a difficult time finding an inexpensive single-chip solution (even circuit schematics are seemingly hard to come by). Links, chips, suggestions welcome...
Dan - Owner
http://www.Hi-TecDesigns.com 





RE: Need chroma demodulator ic
Dan - Owner

http://www.Hi-TecDesigns.com
RE: Need chroma demodulator ic
2 composites or 1 S-video input (NTSC/SECAM)
YCbCr 8 bit 4:2:2 output
Does this help?
RE: Need chroma demodulator ic
Yeah, the TI chip does MacroVision DRM detection and all sorts of other things. Finding a good old-fashioned simple one function video chip these days isn't easy.
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Good luck!
RE: Need chroma demodulator ic
http://www.svideo.com/rcatosvideo.html
These guys might have it.
I've found a svidio to scart and then a scart to rgb.
RE: Need chroma demodulator ic
Considering my few options and what I'd like this unit to support, I think I'm going to go with the TVP7000 for HD support and the TVP5146 for SD support, then wrap all of those output lines to a CPLD for combining the data. A PIC should more than suffice for I2C control. A lot more processing power than I had intended for this project, but I also have no interest in wasting much time searching for a more simple solution (money isn't that critical this time around, my time is more precious). Even in small quantities (<25), total cost for the two chips, CPLD, and PIC should be under $30.
Thanks guys!
Dan - Owner

http://www.Hi-TecDesigns.com
RE: Need chroma demodulator ic
I see something about the NEC uPD1830. Also the TDA3330. Just things that you can get from brokers though. Is it for any volume?
RE: Need chroma demodulator ic
Dan - Owner

http://www.Hi-TecDesigns.com
RE: Need chroma demodulator ic
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RE: Need chroma demodulator ic
Dan - Owner

http://www.Hi-TecDesigns.com