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:
Mar. 27, 2001

Filed:

Jul. 12, 1999
Applicant:
Inventors:

William E. Main, Mesa, AZ (US);

Danielle L. Coffing, Tempe, AZ (US);

Assignee:

Motorola, Inc., Schaumburg, IL (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03F 1/24 ;
U.S. Cl.
CPC ...
H03F 1/24 ;
Abstract

A transconductance amplifier (,) includes a multiple-stage amplifier (,) for amplifying an Intermediate Frequency (IF) signal. The transconductance amplifier includes a feedback path (,) having a resistance (,) for providing a feedback signal from an output of the multiple-stage amplifier (,) to an input of the multiple-stage amplifier (,). The resistance (,) of the feedback path (,) is selected so that an input impedance of the transconductance amplifier is equal to a source impedance at an input terminal (,) of the transconductance amplifier (,) and an output impedance of the transconductance amplifier (,) is equal to a load impedance at an output terminal (,) of the transconductance amplifier (,).


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