一种低功耗高线性度全差分式压控振荡器的设计  

The Design of a Differential VCO with Low Power Dissipation and Good Linear V-f Characteristic

作　　者：尹飞[1] 郭仲杰[1] 季轻舟[1] 耿增建[1] 

机构地区：[1]西安微电子技术研究所,西安710054

出　　处：《科学技术与工程》2010年第19期4789-4792,共4页Science Technology and Engineering

摘　　要：设计了一种只含有两级差分式结构的环形压控振荡器,具有功耗低,电压-频率转换线性度高,相位噪声低的特点。利用上海HUAHONG-NEC 0.35 um的模型,在电源电压为3.3 V,温度为27℃的条件下仿真,振荡频率从20 MHz变化到540MHz,中心频率为260 MHz,而且电压频率转换曲线呈线性关系,功耗仅为5 mW@520 Mhz。A two-stage differential VCO is presented, which is characterized by low power dissipation , linear V-f characteristic and ability of suppressing noise. Under HUAHONG-NEC 0.35 μm CMOS process, when the sup- ply voltage is 3.3 V, the oscillator frequency can be adjusted from 20 MHz to 540 MHz, and power dissipation is only 15 roW@520 MHz.

关 键 词：VCO CMOS 锁相环 中心频率 

分 类 号：TN752.2[电子电信—电路与系统]