摘要
本文设计了一种专门用于VCO特性测试的电源模块。该电源模块分为两路,一路为供电电压,一路为调谐电压。两路电压设计均采用共模噪声抑制技术以及低噪声DC-DC变换器,可以使输出电压基带噪声在10 kHz频偏处降低到10 nV/Hz以下;两路电压设计均使用高分辨率DAC,最终输出供电电压分辨率为1 m V,调谐电压分辨率为0. 1 m V。
A kind of power module was designed for VCO measurement.it includes two parts:the supply power and the control power.Common mode-rejection technology and low noise DC-DC converter were used to control the noise under 10 nV/Hz@10 kHz.And high resolution DAC was used,finally,the supply power’s resolution is 1 mV,and the control power’s is 0.1mV.
作者
凌伟
LING Wei(The 41 st Research Institute of CETC,Qingdao 266555,China)
出处
《电声技术》
2018年第12期18-19,共2页
Audio Engineering
