I 2C总线控制的2.4～2.5 GHz频率源的设计

上海大学学报(自然科学版)

I 2C总线控制的2.4～2.5 GHz频率源的设计

王湘泳，李铭祥，葛建民，韩建国，丁宗文

上海大学通信与信息工程学院，上海 200072

收稿日期:2005-06-01 修回日期:1900-01-01 出版日期:2006-06-30 发布日期:2006-06-30
通讯作者: 李铭祥

Design of 2.4～2.5 GHz Frequency Source Controlled by I 2C-Bus

WANG Xiang-yong, LI Ming-xiang, GE Jian-min, HAN Jian-guo, DING Zong-wen

School of Communication and Information Engineering, Shanghai University, Shanghai 200072, China

Received:2005-06-01 Revised:1900-01-01 Online:2006-06-30 Published:2006-06-30
Contact: LI Ming-xiang

摘要/Abstract

摘要：

阐述了一个S波段锁相式频率合成器，频率范围为2.4～2.5 GHz，频率步进为4 MHz，相位噪声指标为￡(100 kHz)<-110 dBc/Hz.该频率合成器通过51系列的单片机采用I 2C总线对锁相环路一系列参数进行控制，通过软件编程来实现对VCO反馈信号的分频，代替传统的PC控制，使应用更方便.该电路的主要特点是体积小、频率调整方便.

关键词: I 2C总线, TSA5059, 环路滤波器, 锁相环, 压控振荡器

Abstract:

S-band phase locked model frequency synthesizers are summarized. The frequency range is from 2.4 to 2.5 GHz with a 4 MHz step. The phase noise is ￡(100 kHz) <-110 dBc/Hz. The frequency synthesizer uses an I 2C-bus to control a series of parameters of phase locked loop via a 51-series microcontroller. The division ratio of feedback signal of VCO is realized through software programming instead of traditional PC control, making applications more convenient. This circuit is featured by small size and easyadjustment of operating frequency.

Key words: loop filter, PLL, TSA5059, VCO, I 2C-bus

王湘泳;李铭祥;葛建民;韩建国;丁宗文. I 2C总线控制的2.4～2.5 GHz频率源的设计[J]. 上海大学学报(自然科学版).

WANG Xiang-yong;LI Ming-xiang;GE Jian-min;HAN Jian-guo;DING Zong-wen. Design of 2.4～2.5 GHz Frequency Source Controlled by I 2C-Bus[J]. Journal of Shanghai University（Natural Science Edition）.