发明授权
- 专利标题： Automatic gain control
- 专利标题（中）： 自动增益控制
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申请号： US12400898申请日： 2009-03-10
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公开(公告)号： US07893768B2公开(公告)日： 2011-02-22
- 发明人: Zhengyu Wang , Xiaoju Wu
- 申请人： Zhengyu Wang , Xiaoju Wu
- 申请人地址： US TX Dallas
- 专利权人： Texas Instruments Incorporated
- 当前专利权人： Texas Instruments Incorporated
- 当前专利权人地址： US TX Dallas
- 代理商 John J. Patti; Wade J. Brady, III; Frederick J. Telecky, Jr.
- 主分类号： H03G3/10
- IPC分类号： H03G3/10
摘要：
A method and system for providing automatic gain control for a differential amplifier are provided. An impedance network is set to have a first impedance that corresponds to a first gain for a differential amplifier, which amplifies an input signal by the first gain. Once the amplified input signal is greater than a first threshold voltage, the impedance network is set to have a second impedance that corresponds to a second gain for the differential amplifier, which amplifies the input signal. Once amplified input signal is greater than a second threshold voltage and a predetermined period has lapsed, the impedance network is reset to have the first impedance that corresponds to a first gain for the differential amplifier.
公开/授权文献
- US20100231299A1 AUTOMATIC GAIN CONTROL 公开/授权日：2010-09-16
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