Differential data driver

Miscellaneous active electrical nonlinear devices – circuits – and – Specific identifiable device – circuit – or system – Nonlinear amplifying circuit

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Details

327 67, 327112, 326 89, 326126, 330260, H03F 345

Patent

active

060695234

ABSTRACT:
A digital data driver includes a differential amplifier having transistors which operate as a push-pull amplifier in class C mode. The transistors are conductive or non-conductive and controlled in response to a differential data input signal. The driver provides current to a load resistor of an external equipment and the direction of the current flowing therein is reversed in response to the input data. The differential amplifier transistors are connected to other transistors which provide source impedance to the external equipment. The source impedance of the driver is a controllable characteristic impedance of e.g., 50 .OMEGA..

REFERENCES:
patent: 4651038 (1987-03-01), Cline et al.
patent: 4795916 (1989-01-01), Liron
patent: 5185582 (1993-02-01), Barbu
patent: 5382838 (1995-01-01), Sasaki et al.
patent: 5418492 (1995-05-01), Wang et al.
patent: 5530444 (1996-06-01), Tice et al.

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