| 一种用于接收机的低功耗自动增益控制环路 |
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| 引用本文： | 李国锋,耿志卿,吴南健.一种用于接收机的低功耗自动增益控制环路[J].半导体学报,2010,31(9):095009-5. |
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| 作者姓名： | 李国锋 耿志卿 吴南健 |
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| 基金项目： | supported by the National High-Tech Research and Development Program of China（Nos.2008AA010703 2009AA011606）; the National Natural Science Foundation of China（No.60976023） |
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| 摘 要： | This paper proposes a new structure to lower the power consumption of a variable gain amplifier (VGA) and keep the linearity of the VGA unchanged. The structure is used in a high rate amplitude-shift keying (ASK) based IF-stage. It includes an automatic gain control (AGC) loop and ASK demodulator. The AGC mainly consists of six-stage VGAs. The IF-stage is realized in 0.18 μ m CMOS technology. The measurement results show that the power consumption of the whole system is very low. The system consumes 730 μ A while operating at 1.8 V. The minimum ASK signal the system could detect is 0.7 mV (peak to peak amplitude).
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| 关 键 词： | 自动增益控制 控制环路 接收器 低功率 可变增益放大器 功率消耗 CMOS技术 信号系统 |
A low power automatic gain control loop for a receiver |
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| Li Guofeng,Geng Zhiqing and Wu Nanjian.A low power automatic gain control loop for a receiver[J].Chinese Journal of Semiconductors,2010,31(9):095009-5. |
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| Authors: | Li Guofeng Geng Zhiqing and Wu Nanjian |
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| Affiliation: | State Key Laboratory for Super lattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China;State Key Laboratory for Super lattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China;State Key Laboratory for Super lattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China |
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| Abstract: | |
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| Keywords: | low power linearity variable gain amplifier automatic gain control loop amplitude-shift keying |
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