摘要
提出了一种高集成度高优值压控振荡器(VCO)。采用全差分有源电感,克服了传统螺旋电感面积大、不可调谐的缺点。采用可变电容阵列和开关电容阵列,既扩大了振荡频率的可调范围,又降低了相位噪声。采用改进型电流复用型负阻单元,降低了直流功耗和相位噪声。基于TSMC 0.13μm CMOS工艺,利用ADS工具对该VCO进行了验证。结果表明,VCO的振荡频率范围为0.31~5.13 GHz,调节率高达177.7%。在1 MHz偏频处,相位噪声最低值为-125.3 dBc/Hz,直流功耗为63 mW,优值为-201.3 dBc/Hz,综合性能较好。
A highly integrated and high figure-of-merit(FOM)VCO was proposed.A fully differential active inductor was adopted to overcome the disadvantage of traditional spiral inductor,such as large area and untunablity.A variable capacitor array and a switched capacitor array were also employed.On the one hand,the adjustable range of oscillation frequency of VCO was extended.On the other hand,the phase noise of the VCO was reduced.Meanwhile,the improved current-reusing negative resistance structure was adopted to reduce DC power consumption and phase noise.Based on TSMC 0.13μm COMS process,the VCO was verified by ADS.The results showed that the oscillation frequency range was 0.31~5.13 GHz,the tuning range of oscillation frequency was up to 177.7%,the smallest phase noise was-125.3 dBc/Hz at 1 MHz offset,the total power consumption was 63 mW,and the FOM value was-201.3 dBc/Hz.All the results indicated that the VCO had good comprehensive performance.
作者
杨鑫
张万荣
谢红云
金冬月
张崟
徐曙
那伟聪
YANG Xin;ZHANG Wanrong;XIE Hongyun;JIN Dongyue;ZHANG Yin;XU Shu;NA Weicong(College of Microelectronics,Faculty of Information Technology,Beijing University of Technology,Beijing100124,P.R.China)
出处
《微电子学》
CAS
北大核心
2020年第1期27-31,共5页
Microelectronics
基金
国家自然科学基金项目(61774012,61901010)
北京市自然科学基金项目(4142007,4143059,4192014)
北京市未来芯片技术高精尖创新中心科研基金项目(KYJJ2016008)
中国博士后科学基金项目(2019M650404).
关键词
压控振荡器
全差分有源电感
调谐范围
相位噪声
优值
voltage controlled oscillator
fully differential active inductor
tuning range
phase noise
FOM
作者简介
杨鑫(1993—),男(汉族),河北人,硕士研究生,研究方向为射频集成电路;张万荣(1964—),男(汉族),河北人,教授,博士生导师,研究方向为射频器件与射频集成电路设计。
