基于树莓派的嵌入式时钟发生器  

Embedded clock generator based on Raspberry Pi

作　　者：郝艳阳 苏淑靖[1] 裴永浩 冯成林 HAO Yanyang;SU Shujing;PEI Yonghao;FENG Chenglin(National Key Laboratory of the Electronic Measurement Technology,North University of China,Taiyuan Shanxi 030051,China)

机构地区：[1]中北大学电子测试技术重点实验室,山西太原030051

出　　处：《太赫兹科学与电子信息学报》2021年第2期244-249,共6页Journal of Terahertz Science and Electronic Information Technology

基　　金：国家自然科学基金资助项目(51875534);山西省“1331工程”重点学科建设项目。

摘　　要：针对高可靠性、高稳定性时钟源的需求,设计了基于树莓派的嵌入式时钟发生器。选用3B+型树莓派嵌入式控制平台和Qt开发工具,通过RS485通信总线控制ADF4356频率合成器合成目标频率。测试表明:该时钟发生器的控制平台稳定可靠,可控制ADF4356频率合成器合成53.125~6800 MHz范围内的频率,过渡时间<100 ps,均方根抖动<5 ps,可为更多功能时钟发生仪器的设计实现提供必要支持。Aiming at the requirement of high reliability and high stability clock source,an embedded clock generator based on Raspberry Pi is designed.Using 3B+Raspberry Pi embedded control platform and Qt development tool,ADF4356 frequency synthesizer is controlled by RS485 communication bus to synthesize target frequency.The test results show that the control platform of the clock generator is stable and reliable.It can control the ADF4356 frequency synthesizer to synthesize the frequency in the range of 53.125-6800 MHz,the transition time is less than 100 ps,and the RMS jitter is less than 5 ps,which provides some practical support for the design and implementation of more functional clock generators.

关 键 词：频率合成 RS485通信 树莓派控制平台 Qt Creator工具 

分 类 号：TN98[电子电信—信息与通信工程]