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VGA to RCA Conversion GuideWhen it comes to computer video output solutions, VGA is one of the standards that is quite popular. As for the input methods used on TVs, the RCA standard has been around for quite some time now. These are not the only ones available, but they are popular.First of all, the VGA connector is typically blue, has a trapezoid form and a total of 15 pins, which is the HD-15 model. The signal which is transmitted through it is analog in nature, so data is not translated to images and it doesn't have any compression. The same can be said about the majority of the RCA connections, since they are also for the most part analog. There are two major formats when it comes to the RCA signals: the component and the composite. The one that is more common is composite RCA, which is yellow colored and available on every single TV out there. The only resolution available on it is 480i, which is quite low these days. Besides the yellow port, there are also two other ports colored white and red, which are used for the audio connections. As for component RCA, this is usually three different RCA connections, colored blue, green and red. In many cases, an extra two connections are present, to send stereo audio signal through. This standard is the better one, since it can send video signal of Full HD definition (1080p). It uses all three cables to send the signal after it splits it, so the bandwidth is three times bigger. In most cases, the conversion is done from VGA to RCA of the composite type. A cable is not sufficient in this case, since the signals are different. You require a conversion box in order for it to work. The composite signal should only be used when component is not available, since it's the inferior choice. The component signal is called that way because of the multiple components it can have, split among the three video cables. The signal from component RCA will not have any audio signals in it, so just like composite, it will need audio cables to be complete. With component, the three different cables carry the R-Y, B-Y color difference signals and the Y luminance signal. All this comes in a single cable if the system is composite in nature. Since the video signal is not encoded, the quality of the color is much better in component video. |
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