锁相环单片多带VCO设计  

Design of Multiband VCO and Self Calibration Band Selection in PLL

作　　者：孟志朋[1] Meng Zhi-peng(The 13th Research Institute CETC,Hebei Shijiazhuang 050051)

机构地区：[1]中国电子科技集团公司第十三研究所

出　　处：《电子质量》2019年第8期86-89,共4页Electronics Quality

摘　　要：该文基于0.35μm SiGe工艺设计了一款集成压控振荡器(VCO)的小数频率合成器单片。通过使用电容谐振腔技术实现多带VCO,芯片基波频率覆盖范围为2.2~4.4GHz一个倍频程,总覆盖范围为0.1375~4.4GHz。该设计采用二分法自校准选带技术实现锁相环的自动选带,实现芯片低相噪,带内归一化噪声本底可达-219dBc/Hz。频率合成器芯片面积为2.5*2.6mm^2。A Fractional-N frequency synthesizer integrated voltage controlled oscillator(VCO)was designed in 0.35um SiGe process.By utilizing the capacitance resonator to realize multiband VCO,the scope of the chip's fundamental frequency ranges from 2.2~4.4GHz while the total scope ranges from 0.1375~4.4GHz.This design adopts the self-calibration technique of dichotomy to realize the automatic Band selection of the phase-locked loop(PLL),thus achieving low phase noise of the chips.The normalized in-band phase noise floor can be-219 dBc/Hz.The frequency synthesizer has a compact chip area of 2.5*2.6mm^2.

关 键 词：锁相环 多带VCO 自校准 频率合成器 SIGE 

分 类 号：TN752[电子电信—电路与系统]