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:
May. 26, 2020

Filed:

Aug. 20, 2018
Applicant:

Integrated Device Technology, Inc., San Jose, CA (US);

Inventors:

Victor Korol, San Diego, CA (US);

Roberto Aparicio Joo, San Diego, CA (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03G 3/30 (2006.01); H03M 1/14 (2006.01); H03F 3/72 (2006.01); H03G 1/00 (2006.01); H03F 3/193 (2006.01); H03F 1/08 (2006.01); H03M 1/12 (2006.01);
U.S. Cl.
CPC ...
H03G 3/3068 (2013.01); H03F 1/083 (2013.01); H03F 3/193 (2013.01); H03F 3/72 (2013.01); H03G 1/0029 (2013.01); H03G 1/0088 (2013.01); H03G 3/3036 (2013.01); H03G 3/3042 (2013.01); H03G 3/3063 (2013.01); H03M 1/14 (2013.01); H03F 2200/211 (2013.01); H03F 2200/451 (2013.01); H03G 2201/307 (2013.01); H03M 1/124 (2013.01);
Abstract

An apparatus includes an amplifier and a gain control circuit. The amplifier may be configured to provide multiple gain steps. The gain control circuit may be configured to provide fast and precise changes between the multiple gain steps of the amplifier. The gain control circuit may be further configured to change an impedance of the amplifier to switch between the gain steps. The gain control circuit may be further configured to compensate for changes in frequency response related to changing the impedance. The gain control circuit may be further configured to inject a complementary charge to an input of the amplifier to correct a bias voltage deviation and a transient caused by the gain control circuit.


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