Electrical – Video sync generator IC

microcontrollersynchronizationvideo

I have a board which is a PAL CCIR video sync generator card having SAA1043. The IC is accepting external sync signal from pin 15 and generating composite pulse on pin 26 and burst output on pin 1.

This IC is now obsolete and I am planning to replace this card. While searching for sync generator ICs, I mostly find sync separator for example MAX9568.

My questions are:

  1. What is difference between sync generator and separator? Can I use MAX9568 circuit in place of SAA1043 circuit? Would that work?
  2. Can I replace this card with a Microcontroller based sync generator card? Is this doable? If yes, any article for guidance because I am really confused what exactly sync generation is?

Edit: Schematics attached.

enter image description here

Best Answer

What is difference between sync generator and separator?

Big difference. The generator creates all the extra pulse information while the separator strips off the extra information to extract only the H sync pulses.

Can I use MAX9568 circuit in place of SAA1043 circuit? Would that work?

NO

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The SAA1032 Sync Gen is mainly for the VCR standard input & Sync while the MAX9568 Sync Separator is only for Composite Video input. (Yellow phono plug)

Consumer VCR IC technology is getting or is already obsolete. So keep looking.

These are common output signals.

enter image description here

Can I replace this card with a Microcontroller based sync generator card? Is this doable?

Maybe

First you must master your understanding of how it works.

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