The low-voltage differential signaling (LVDS) system is a high-speed signal transmission system on inexpensive transmission media, such as twisted pair. It was introduced in 1994 and became popular in high-speed computer networks for data transmission. LVDS Transmission.
LVDS is a differential signal system, which means that the signal is transmitted in duplicate by the transmitter but with different voltage, a signal transmitted with positive sign, while the other is transmitted with negative sign. This requires two separate cables. Once the signal arrives at the receiver, the receiver is in charge of comparing both signals, and checking which one has the highest potential and assigning the corresponding logical value. The transmission of the data of the systems that use this type of signal transmission is done in series (bit by bit), due to having to double the number of cables necessary for the transmission, which in systems of transmission in parallel would be unfeasible. The purpose of the differential transmission is to be able to recover the signal more easily in the receiver, because it is easier to check which signal is more positive than another, to obtain the potential of the signal.
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