Circuits, systems and methods for the high speed transfer of dat

Details Circuits, systems and methods for the high speed transfer of dat Circuits, systems and methods for the high speed transfer of dat

1996-05-02

1997-01-21

Wambach, Margaret Rose

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Current driver

327 77, H03K 5153

Patent

active

055962912

ABSTRACT:
Circuitry 200 is provided for transferring data across a conductive line 201. A driver 202 is provided for transmitting data across the line 201, the driver 202 receiving data at a first high voltage level and a low voltage level and driving the line 201 at the low voltage level and a second high voltage level, the second high voltage level being less than the first high voltage level. A receiver 206 is provided for receiving data transmitted on line 201 by driver 202. The receiver includes a differential amplifier 207-210 having a first input coupled to line 201 and a second input coupled to a voltage source providing a reference voltage V.sub.ref. Receiver 206 further includes a current source transistor 212 for coupling a common node 213 of the differential amplifier to a source providing a voltage at the first high voltage level, the differential amplifier outputting data at said low voltage level and said first high voltage level.

REFERENCES:
patent: 4486670 (1984-12-01), Chen et al.
patent: 4943740 (1990-07-01), Gulczynski
patent: 4978870 (1990-12-01), Chen et al.
patent: 5285115 (1994-02-01), Tsuji
patent: 5329171 (1994-07-01), Shimizu et al.
patent: 5369319 (1994-11-01), Good et al.
patent: 5399913 (1995-03-01), Widener et al.

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