chip that generates ntsc black?

May 08, 2007 3 Replies

is there such a thing? i've seen microcontrollers used to generate ntsc, but it seems the must be a simpler method. something like the elm electronics 304 chip. (it doesn't produce black though, which i need.) thanks for any pointers.


Lots of cobwebs here, but try Hitachi. We used one of their video camera chips which I'm 98% certain had that capability. Sorry, I do not recall the part#, and it was also many years ago...

-mpm

no problem. i appreciate the lead. off to google...

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yields this:

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Then, just don't add any video. The sync output is based on black - the pulses are "blacker than black". IOW, between sync pulses, it idles at black.

Good Luck! Rich

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