基于单片机控制的LMX2572锁相频率合成器的设计与实现  

The Design and Implementation of Frequency Synthesizer of LMX2572 Based on Microcomputer Control

作　　者：李垒 

机构地区：[1]南京熊猫汉达科技有限公司卫星通信技术研究所

出　　处：《数字通信世界》2020年第1期7-8,共2页Digital Communication World

摘　　要：在卫星通信系统中,对锁相频率源要求很高,利用ATMEL公司的单片机ATTINY9结合TI公司的辅助设计工具基于集成VCO的锁相芯片LMX2572设计了一种C频段低相噪频率源,并制板出实物电路进行了测试,测试结果符合设计要求,该方案空间尺寸小、功耗低,可以广泛应用于卫星通信系统。In the satellite communication system,the performance of the frequency synthesizer has an important impact on the performance of the entire communication system.This paper uses ATMEL's single-chip ATTINY9 combined with TI's auxiliary design tool to design a C based on the LMX2572 phase-locked loop chip.Frequency band low phase noise frequency synthesizer,and made physical test,the test result meets the design requirements,the scheme is simple and space size small,low power consumption,can be widely used in the satellite communication system.

关 键 词：频率合成器 锁相环 单片机 LMX2572 

分 类 号：TN74[电子电信—电路与系统] TN927+.2