一种微调晶振频率的软件实现方法  

A Software Method for Calibrating Crystal Oscillator Frequency

作　　者：刘虹[1] 庞佑兵[1] 何开全[1] 李科[1] 

机构地区：[1]中国电子科技集团公司第二十四研究所,重庆400060

出　　处：《微电子学》2014年第5期647-650,共4页Microelectronics

摘　　要：提出一种实用的基于软件和硬件相结合的晶振频率微调方法。该方法能够对晶振输出频率进行精确调节,实现对系统晶振频率的在线校准,无需拆卸系统硬件,能够极大地提高频率校准的效率。该方法的频率校准精度较高,由校准软件和硬件带来的误差可低至1.5×10-13,能够满足大部分通信系统的使用要求,可广泛用于通信、雷达、频率合成器等领域。A usable, software and hardware based method of calibrating crystal frequency was introduced. The output frequency can be tuned exactly by this method, so that the system crystal frequency can be calibrated online without hardware disassemble. The method had improved the efficiency of frequency calibrating. The calibration system was very precise, calibration error caused by calibration software and hardware was 1.5 × 10^-13 , which can satisfied most communication system. This method can be applied broadly in communication, radar, frequency synthesizer, and so on.

关 键 词：晶振 频率微调 软件实现 

分 类 号：TN432[电子电信—微电子学与固体电子学]