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:
Sep. 05, 2017

Filed:

Feb. 22, 2016
Applicant:

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

Inventors:

Didem Z. Turker Melek, Campbell, CA (US);

Parag Upadhyaya, Los Gatos, CA (US);

Kun-Yung Chang, Los Altos Hills, CA (US);

Assignee:

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

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03G 3/30 (2006.01); H03F 1/02 (2006.01); H03F 3/16 (2006.01); H04B 1/12 (2006.01);
U.S. Cl.
CPC ...
H03G 3/3036 (2013.01); H03F 1/0205 (2013.01); H03F 1/0211 (2013.01); H03F 3/16 (2013.01); H04B 1/123 (2013.01); H03F 2200/555 (2013.01);
Abstract

An example automatic gain control (AGC) circuit includes a base current-gain circuit having a programmable source degeneration resistance responsive to first bits of an AGC code word. The AGC circuit further includes a programmable current-gain circuit, coupled between an input and an output of the base current-gain circuit, having a programmable current source responsive to second bits of the AGC code word. The AGC circuit further includes a bleeder circuit, coupled to the output of the base current-gain circuit, having a programmable current source responsive to logical complements of the second bits of the AGC code word. The AGC circuit further includes a load circuit coupled to the output of the base current-gain circuit.


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