Differential line driver

Abstract

Abstract when a driver circuit unit issues data to a receiver through a transmission line, the unit perform a matching operation to the characteristic impedance of the transmission line so that the logic level of an input signal received by the receiver is properly controlled. The unit comprises: a first push pull circuit (2) for issuing an output signal to an output terminal (5A) through resistors (2B, 2C) when transmitted data is issued to an input terminal (1A), the output signal having its logic level correspond to the transmitted data; a second push pull circuit (3) for issuing an negative-phase output signal to an output terminal (5B) through resistors (3B, 3C) when negative-phase data, which is one reversed in phase of the above transmitted data, is issued to an input terminal (1B), the negative-phase output signal having its logic level correspond to the negative-phase data; and, a resistor (4) connected between the output terminal (5A) and the output terminal (5B).

Inventors

• 👤 Masashi Nakagawa

Bibliographic Details