A low power automatic gain control loop for a receiver

• Published in: Journal of semiconductors Vol. 31; no. 9; pp. 108 - 112
• Main Author: 李国锋 耿志卿 吴南健
• Format: Journal Article
• Language: Chinese; English
• Published: IOP Publishing 01.09.2010
• Subjects: CMOS技术; 低功率; 信号系统; 功率消耗; 可变增益放大器; 接收器; 控制环路; 自动增益控制

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...