Invention Grant
- Patent Title: Automatically adjusting low noise amplifier
- Patent Title (中): 自动调节低噪声放大器
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Application No.: US10820675Application Date: 2004-04-07
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Publication No.: US07081791B2Publication Date: 2006-07-25
- Inventor: Lorenzo M. Carpineto , Eric Duvivier , Stefano Cipriani
- Applicant: Lorenzo M. Carpineto , Eric Duvivier , Stefano Cipriani
- Applicant Address: US TX Dallas
- Assignee: Texas Instruments Incorporated
- Current Assignee: Texas Instruments Incorporated
- Current Assignee Address: US TX Dallas
- Agent Ronald O. Neerings; Wade James Brady, III; Frederick J. Telecky, Jr.
- Priority: EP03292472 20031007
- Main IPC: H03G3/20
- IPC: H03G3/20
Abstract:
A low noise amplifier circuit (10) includes an attenuator (12) for receiving a calibration signal and generating an attenuated calibration signal. A low noise amplifier (14) amplifies the attenuated calibration signal in calibration mode or amplifies a functional signal in functional mode. In calibration mode, a envelope detector/comparator (16) compares the calibration signal with the output of the low noise amplifier and generates a compensation signal indicating a deviation between the two signals. The gain of the low noise amplifier is adjusted responsive to the compensation signal.
Public/Granted literature
- US20050073357A1 Automatically adjusting low noise amplifier Public/Granted day:2005-04-07
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