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公开(公告)号:US5734974A
公开(公告)日:1998-03-31
申请号:US625435
申请日:1996-03-27
申请人: Edgar Herbert Callaway, Jr. , James Gregory Mittel , Vance Howard Peterson , Burkhard Dick , Knud Holtvoeth , Wilfried Knop
发明人: Edgar Herbert Callaway, Jr. , James Gregory Mittel , Vance Howard Peterson , Burkhard Dick , Knud Holtvoeth , Wilfried Knop
CPC分类号: H03G3/3073 , H03G1/0088
摘要: A receiver (100) for receiving an input signal and generating an output signal therefrom has a switchable gain circuit (104) with a stepwise variable gain control (118), a local oscillator (106) and an automatic gain control (AGC) detector (114) with a response for detecting a level of the output signal and generating an AGC signal indicative of the level of the output signal and a state machine (116) being responsive to the AGC signal generating a control signal at the stepwise variable gain control to increase or decrease a gain of the switchable gain circuit in discrete stepwise steps.
摘要翻译: 一种用于接收输入信号并从其产生输出信号的接收器(100)具有带有逐步可变增益控制(118),本地振荡器(106)和自动增益控制(AGC)检测器(118)的可切换增益电路(104) 114),具有用于检测输出信号的电平并产生指示输出信号的电平的AGC信号的响应,以及状态机(116)响应于在步进可变增益控制下产生控制信号的AGC信号, 在离散步进步骤中增加或减少可切换增益电路的增益。