Patent Number: 8,575,961

Title: Multi-valued driver circuit

Abstract: A multi-valued driver circuit selectively outputs, to a transmission line, one from among multiple voltages according to a selection signal. A memory circuit stores setting data which define the respective levels of the multiple voltages. According to the selection signal, a selector circuit selects one from among the multiple setting data stored in the memory circuit. A Thevenin termination circuit outputs a voltage that corresponds to the upper M bits of the data thus selected by the selector circuit. An R-2R ladder circuit outputs a voltage that corresponds to the lower Nl bits of the data thus selected by the selector circuit.

Inventors: Kojima; Shoji (Tokyo, JP)

Assignee: Advantest Corporation

International Classification: H03K 19/00 (20060101); H04L 27/04 (20060101)

Expiration Date: 1/05/12017