Title:
ADJUSTABLE GAIN CONTROL SYSTEM AND METHOD THEREOF
Document Type and Number:
WIPO Patent Application WO2003077416
Kind Code:
A3
Abstract:
An adjustable gain control (AGC) system (100) with improved gain control accuracy and method thereof is disclosed. The system includes an offset circuit (113) for providing an offset signal that is selectable; a gain setting source for providing a gain set signal that is dependent on a desired gain and the offset signal; and an AGC circuit (123), coupled to the offset signal and gain set signal, for providing a gain control signal, the AGC circuit compensating, according to the offset signal, the gain control signal for process variables corresponding to the AGC circuit to provide a plurality of predetermined gains for the amplifier that correspond, respectively, to a plurality of desired gains.
Inventors:
MANAPRAGADA PRAVEEN
DOW STEPHEN W
DOW STEPHEN W
Application Number:
PCT/US2003/006370
Publication Date:
October 21, 2004
Filing Date:
February 27, 2003
Export Citation:
Assignee:
FREESCALE SEMICONDUCTOR INC (US)
International Classes:
H03F3/45; H03G3/10; H03G3/02; H03G3/30; (IPC1-7): H03G3/30; H03F1/30
Foreign References:
| US4704584A | 1987-11-03 | |||
| US6353401B1 | 2002-03-05 | |||
| US4229703A | 1980-10-21 |
Other References:
PATENT ABSTRACTS OF JAPAN vol. 2003, no. 12 5 December 2003 (2003-12-05)
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