An Ambient Proof and Wide Tuning Range LC VCO with Automatic Amplitude Control for Tuner Applications

摘要：

This paper represents a LC VCO with AAC (Auto Amplitude Control), in which PMOS FETs are used as active components, and the varactors are directly connected to ground to widen Kvco linear range. The AAC circuitry adds little noise to the VCO and provides it with robust performance over a wide temperature and carrier frequency range. The VCO is fabricated in 50-GHz 0.35-μm SiGe BiCMOS process. The measurement results show that it has -127.27-dBc/Hz phase noise at 1-MHz offset and a linear gain of 32.4-MHz/V between 990-MHz and 1.14-GHz. The whole circuit draws 6.6-mA current from 5.0-V supply.

作者: Jun Yan Desheng Ma Wei Mao Ming Gu Yin Shi Fa Foster Dai

作者单位: Mixed Signal and High Speed Circuit Lab Institute of Semiconductors, Chinese Academy of Science Beij Department of Electrical Computer Engineering Auburn University Auburn, Alabama, USA, 36849-5201

会议类型: 国际会议

会议名称: 2006 International Conference on Communications,Circuits and Systems(第四届国际通信、电路与系统学术会议)

会议地点: 广西桂林

会议语种:英文

页码: 2629-2633

在线出版日期: 2006-06-25（万方平台首次上网日期，不代表论文的发表时间）