Differential Signaling

Differential signaling is a method of transmitting information electrically with two complementary signals sent on two paired wires, called a differential pair. Since external interference tend to affect both wires together, and information is sent only by the difference between the wires, the technique improves resistance to electromagnetic noise compared with use of only one wire and an un-paired reference (ground). The technique can be used for both analog signaling, as in balanced audio, and digital signaling, as in RS-422, RS-485, Ethernet over twisted pair, PCI Express and USB. The opposite technique is called single-ended signaling. Differential pairs are usually found on a printed circuit board, in cables (twisted-pair cables, ribbon cables), and in connectors.

Read more about Differential Signaling:  Comparison With Single-ended Signaling, Uses, Transmission Lines, Use in Computers, High-voltage Differential Signaling

Other articles related to "signaling, differential signaling, differential":

Single-ended Signalling
... Single-ended signaling is the simplest and most commonly used method of transmitting electrical signals over wires ... The main alternative to single-ended signaling is called differential signaling ... Single ended signaling is less expensive to implement than differential, but it lacks the ability to reject noise caused by differences in ground voltage level between ...
High-voltage Differential Signaling
... High-voltage differential (HVD) signaling uses high-voltage signals ... SCSI-1 variations included a high voltage differential (HVD) implementation whose maximum cable length was many times that of the single-ended version ... The term high-voltage differential signaling is a generic one that describes a variety of systems ...

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