Analog Video Types Explained
Component video is an analog video-only signal that is transmitted as three separate signals. Component-video cables do not carry audio and are often paired with audio cables. Component video is capable of carrying signals such as 480i, 720p, and 1080i and most high-definition TVs support the use of component video up to their native resolution. The three most commonly used component types are: Component Video video-only
YPbPr is the converted version of RGB which is split into three components: Y carries luma (brightness) and sync information; Pb carries the difference between blue and luma; and Pr carries the difference between red and luma. The primary advantages of YPbPr over RGB and S-video is that it is able to transfer non-interlaced video and, and at the same time, provide high resolution video such as 1080i or better.
RGB (Red, Green, Blue) uses no compression and contains redundant data since most programs typically contain the same black & white image, therefore, it requires large bandwidth to carry the signal. It’s becoming obsolete as home theaters move toward HDMI and computers toward DVI interfaces.
S-Video (Separated Video) is an extension of the analog Composite standard. Compared to the two standards above, it provides the poorest quality of image. It’s rarely used for today’s applications because it cannot be used for high definition standards unless its standard is changed to accommodate for signal modulation of the carrier frequency.
is an analog video-only signal which is a composite of
three source signals called Y, U, and V. Y represents the brightness of the picture
and includes synchronizing pulses, so that by itself it could be displayed as a
monochrome picture. U and V represent hue and saturation and carry the color
For residential and commercial applications, the composite video signal is typically connected using an RCA jack, normally yellow, which is often accompanied with red and