Line driver

A line driver is an electronic amplifier circuit designed for driving a load such as a transmission line. The amplifier's output impedance may be matched to the characteristic impedance of the transmission line.

Texas Instruments DRV632 - DirectPath, 2-VRMS Audio Line Driver with Adjustable Gain

Line drivers are commonly used within digital systems, e.g. to communicate digital signals across circuit-board traces and cables.[1]

In analog audio, a line driver is typically used to drive line-level analog signal outputs, for example to connect a stereo music player to an amplified speaker system.[1]

References
  1. Bishop, Owen (2011). Electronics - Circuits and Systems. Routledge. p. 250. ISBN 9781136440434. Retrieved 18 April 2016.


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