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Amplifier removes common-mode noise on RGB differential-video-transmission line.(design ideas: READERS SOLVE DESIGN PROBLEMS)(Red-Green-Blue (color model based on additive color primaries) )
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EDN
- Article date:
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April 13, 2006
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Copyright informationCOPYRIGHT 2006 Reed Business Information, Inc. (US). This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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Comprising four twisted pairs within a durable external sheath, Category 5 network cable offers a common and cost-effective choice for transmitting component-video signals. Three of the pairs can carry RGB video signals, and the fourth pair carries audio, synchronization, and other transmissions. Unfortunately, Category 5 cable lacks shielding, and thus it's somewhat vulnerable to common-mode coupling that induces equal volt ages in each of the cable's conductors. As a first line of defense against common-mode problems, you can configure RGB signals as differential voltages, but any voltage difference between the ground references of the twisted-pairs' drivers and receivers ...
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