S-Video Cables, Adapters & Couplers, Multimedia Cables
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We offer S-Video cables, adapters, couplers, and other multimedia cables for HDTV, NTSC TV, DVD, Digital TV and PC. We are a well established supplier of connectivity products, with more than 25 years of experience. You can easily select and buy s-video cables in our secure Online Store, or you can Request a Quote for Discounted Quantity Orders/Wholesale. If you don't know what kind of s-video cable you need, we suggest you to call us. We will gladly help you find the right products for your application. Please see below some of the products we offer:
A Guide to S-Video
S-Video (also known as Y/C) is a baseband analog video format offering a higher quality signal than composite video, but a lower quality than RGB and component video. This mid
-level format divides the signal into two channels - luminance and chrominance.
S-Video Signal and Cables
The luminance signal and modulated chrominance subcarrier information are carried on separate synchronized signal/ground pairs. In composite video, the luminance signal is low
-pass filtered to prevent crosstalk between high-frequency luminance information and the color subcarrier. S-Video, however, separates the two, so low-pass filtering is not necessary. This increases bandwidth for the luminance information, and also subdues the color crosstalk problem. While the luminance performance of S-Video compares favorably to analog component video, the chrominance performance—aside from reduced
crosstalk—does not show notable improvement over composite video. S-Video signals tend to degrade considerably when transmitted across more than 5 meters of cable. For long distances, component or composite video may provide better quality.
S-Video signals are generally connected using 4-pin mini-DIN connectors using a 75 ohm termination impedance. The pins in the connectors bend easily, hence care must be taken when plugging the cables in--else a pin is likely to bend, causing the loss of color, corruption of the signal, or complete loss of the signal. Before the mini-DIN plug became standard, S-Video signals were often carried through different types of plugs. For example, the
Commodore 64 home computer of the 1980s, one of the first widely available devices to feature S-Video output, used an 8-pin standard size DIN plug on the computer end and a pair of RCA plugs on the monitor end. Today, S-Video signals can be transferred through SCART connections as well. However the SCART connector must explicitly support S-Video as it is not part of the original SCART standard.
S-Video is commonly used on consumer DVD players, VTRs, and modern game consoles. It is also available on some professional equipment and computer video capture and playback cards.
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