一种高性能带有幅度测量的CMOS电压控制振荡器的设计  

A Design of High-Performance CMOS Voltage-Controlled Oscillator with Amplitude Measurement

作　　者：蒋行舟 张国琴[2] 闫树斌 吴秀山 JIANG Xingzhou;ZHANG Guoqin;YAN Shubin;WU Xiushan(Longyou Zelong Power Engineering Co.,Ltd.,Longyou 324400,China;Zhejiang University of Water Resources and Electric Power,Hangzhou Zhejiang 310018,China)

机构地区：[1]龙游泽龙电力工程有限公司,龙游324400 [2]浙江水利水电学院,浙江杭州310018

出　　处：《电子器件》2021年第4期812-816,共5页Chinese Journal of Electron Devices

基　　金：浙江省自然科学基金项目(Y21F040004);国家浙江省电力公司2020年群众性科技创新项目(QDZB-2020-02);浙江省重点研发计划项目(2021C03019)。

摘　　要：设计了一种高性能的拥有开关电容阵列的电压控制振荡器以满足通信系统宽频的要求。基于建立的等效电路模型,推导了开关电容阵列的电压控制振荡器的相位噪声产生机理,为了测量输出信号的幅度并判断振荡电路能否正常工作,设计了一种振荡信号幅度测量电路。基于TSMC 0.18μm的CMOS工艺实现了电路的验证与流片,制成的芯片面积为1.1 mm×0.9 mm,测量的振荡频率为2.602 GHz~3.375 GHz,实现的相位噪声在最低和最高频率时分别为-125.68 dBc/Hz@1 MHz和-121.25 dBc/Hz@1 MHz,在1.8 V的供电下功耗为3.06 mW,电路的优值分别为-189.2 dB和-187.1 dB。A high-performance voltage-controlled oscillator(VCO)with a switched capacitor array is designed to meet the broadband requirements of the system.The phase noise mechanism of the switched capacitor array is analyzed based on the deduced equivalent circuit in the on-state,an oscillating signal amplitude measurement circuit is designed to obtain the amplitude and demonstrate the working condition of the VCO.The VCO is implemented in TSMC 0.18μm complementary metal oxide semiconductor(CMOS)technology and the chip area is 1.1 mm×0.9 mm.The proposed VCO can be operated at 2.602 GHz~3.375 GHz,and the measured phase noise is-125.68 dBc/Hz at 1 MHz and-121.25 dBc/Hz at 1 MHz from the carriers of the minimum and maximum frequencies,respectively.The VCO draws 3.06 mW power from a 1.8 V supply and achieves-189.2 dB/-187.1 dB figure of merit respectively.

关 键 词：电压控制振荡器 相位噪声 变容管 电容阵列 幅度测量 

分 类 号：TN752[电子电信—电路与系统]