发明授权
- 专利标题： Mechanism for controlling amplifier gain in a radio receiver
- 专利标题（中）： 控制无线电接收机放大器增益的机制
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申请号： US11648413申请日： 2006-12-29
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公开(公告)号： US07890075B2公开(公告)日： 2011-02-15
- 发明人: Chunyu Xin , G. Tyson Tuttle , Scott D. Willingham , Peter J. Vancorenland
- 申请人： Chunyu Xin , G. Tyson Tuttle , Scott D. Willingham , Peter J. Vancorenland
- 申请人地址： US TX Austin
- 专利权人： Silicon Laboratories, Inc.
- 当前专利权人： Silicon Laboratories, Inc.
- 当前专利权人地址： US TX Austin
- 代理机构： Meyertons, Hood, Kivlin, Kowert & Goetzel, P.C.
- 代理商 Stephen J. Curran
- 主分类号： H04B1/06
- IPC分类号： H04B1/06
摘要：
A radio receiver such as a frequency modulation (FM) receiver, for example, includes a radio frequency (RF) amplifier having an adjustable gain output. The RF amplifier may be configured to receive and amplify an incoming RF signal. The receiver also includes an intermediate frequency (IF) amplifier having an adjustable gain output. The IF amplifier may be configured to receive and amplify an IF signal that corresponds to the RF signal. The receiver also includes a gain control unit that is coupled to the RF amplifier and the IF amplifier. The gain control unit may be configured to independently adjust the gain of each of the RF amplifier and the IF amplifier, dependent upon a peak output level of both the RF amplifier and the IF amplifier.
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