发明授权
- 专利标题: Variable gain amplifier and receiver including the same
- 专利标题(中): 可变增益放大器和接收器包括相同的
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申请号: US12111913申请日: 2008-04-29
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公开(公告)号: US08050642B2公开(公告)日: 2011-11-01
- 发明人: Young-Ho Kim , Seok-Bong Hyun
- 申请人: Young-Ho Kim , Seok-Bong Hyun
- 申请人地址: KR Daejeon
- 专利权人: Electronics and Telecommunications Research Institute
- 当前专利权人: Electronics and Telecommunications Research Institute
- 当前专利权人地址: KR Daejeon
- 优先权: KR10-2007-0120897 20071126
- 主分类号: H04B1/06
- IPC分类号: H04B1/06 ; H04B7/00
摘要:
Provided are a variable gain amplifier and a receiver including the same. The variable gain amplifier includes: a gain controller generating a gain control voltage; a variable gain amplifier amplifying an input signal and a feedback signal by using a voltage gain that is linearly proportional to the gain control voltage, and converting the amplified signal into a predetermined magnitude of a signal; and an offset canceller removing an offset from an output signal of the variable gain amplifier and outputting the offset removed result as the feedback signal. The variable gain amplifier includes a plurality of operational transconductance amplifiers.
公开/授权文献
- US20090137220A1 VARIABLE GAIN AMPLIFIER AND RECEIVER INCLUDING THE SAME 公开/授权日:2009-05-28
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