I wan to build a video switcher with 2 channels, something that has 2 video input (left/right channels) and 1 video output. And control it with Arduino.
The input channels will be 2 dvd player and the output will be a videoprojector.
I don't use normal mechanical relays because of I am afraid of some glitch when I switch the channel, this is the most important thing: the switch must be fluid, no light interruption, no glitch, no flickering.
I've seen in the internet those 2 possibility: NJM2244 and DG542DJ-E3. But I don't know which fits more my needs.
Do they requires some extra regulation? Are the right IC I need?
Best Answer
In general, to get completely seamless switching among live video sources, you need to make sure the sources are frame-synchronized. In a studio, this is accomplished by having all sources (cameras, playback machines) synchronized to a common master clock. If your sources are synchronized and you're dealing with analog video signals, then the analog switches you've suggested might work.
In other situations, when the sources can't be synchronized, a frame buffer can be used to time-align one source with another. But this is not the sort of thing you're going to find in a single chip.