The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Dec. 08, 2015

Filed:

Dec. 17, 2014
Applicant:

Xilinx, Inc., San Jose, CA (US);

Inventors:

Kevin Geary, Ballincollig, IE;

Ronan Casey, Cork, IE;

Declan Carey, Douglas, IE;

Thomas Mallard, Popes Quay, IE;

Assignee:

XILINX, INC., San Jose, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K 19/094 (2006.01); H03K 19/0185 (2006.01); H03K 19/003 (2006.01);
U.S. Cl.
CPC ...
H03K 19/018514 (2013.01); H03K 19/00384 (2013.01);
Abstract

A circuit for controlling output swing in a current-mode logic circuit is described. The circuit comprises a plurality of current-mode logic circuits coupled in series; a first current-mode logic circuit of the plurality of current-mode logic circuits coupled to provide a signal to a second current-mode logic circuit of the plurality of current-mode logic circuits; an amplitude detector coupled to detect an amplitude of the signal received at the second current-mode logic circuit; and a control circuit coupled to the amplitude detector; wherein the control circuit generates an amplitude control signal for a current-mode logic circuit of the plurality of current-mode logic circuits based upon a detected amplitude of the signal received at the second current-mode logic circuit. A method of controlling output swing in a current-mode logic circuit is also disclosed.


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