Video circuits collection
William H. Gross
Abstract
Several different video circuits that work with composite, RGB and monochrome video are described.
Keywords
Video circuit
amplifier
fader circuit
LT1190
LT1228
Introduction
This note shows how to make several different video circuits using high speed op amps. All of these circuits work with composite, RGB and monochrome video. For best results, bypass the power supply pins of these amplifiers with 1μF to 10μF tantalum capacitors in parallel with 0.01μF disc capacitors. It is important to terminate both ends of video cables to preserve frequency response. When properly terminated, the cable looks like a resistive load of 150Ω.
Multiplex amplifiers
Often it is desirable ...
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