高精度低噪声集成稳压电路设计  

Design of High Precision and Low Noise Integrated Voltage Regulator Circuit

作　　者：王占奎[1] 方修成 WANG Zhankui;FANG Xiucheng(No.13 Research Institute of China Electronics Technology Group Corporation,Shijiazhuang 050051,China)

机构地区：[1]中国电子科技集团公司第13研究所,河北石家庄050051

出　　处：《通信电源技术》2020年第24期85-86,89,共3页Telecom Power Technology

摘　　要：传统恒温晶振采用分立的稳压、振荡以及控温电路,元器件数量多体积大,对小型化的发展趋势带来严重影响。通过讨论一款集成于OCXO ASIC内部的低噪声高精度稳压电路的实现方式,显著提高了输出电压的精度,将设计的样品与当前常见采用分立结构稳压电路的晶振进行了实测对比。Traditional Oven controlled crystal oscillation utilizes discrete regulator,oscillation and temperature control circuits.It has a large number of components,takes up a large area,and at the same time,results in deterioration of the crystal oscillation performance.This design discusses the implementation of a low noise regulator integrated in ASIC.In the test,the phase noise of the crystal oscillation is compared with that of the current discrete regulator circuit,which improves the output voltage accuracy significantly.

关 键 词：低噪声 稳压集成电路 噪声抑制 高精度 相位噪声 

分 类 号：TN7[电子电信—电路与系统]