基于LMX2594的K波段频率源的设计与实现
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摘要
介绍了一种K波段频率源的设计方法。本文采用LMX2594数字锁相环芯片,并用C8051F330单片机对锁相环芯片进行操作,然后再倍频的方法实现了实现了该K波段频率源的设计。该频率源具有频率稳定度高,相位噪声低,杂散低等优点。测试结果表明该频率源的相位噪声为-90dBc@1kHz,-98dBc@10kHz;输出功率大于10dBm,可以满足系统的各项要求。
A design method of the K-band frequency source is introduced in this paper.The chip of LMX2594 Digital PLL is used in this paper,C8051F330MCU is used to do operation in the PLL chip,and then multipliers it to achieve the K-band frequency source,which has lots of characteristics,such as high frequency stability,low phase noise and low spurs.The test results show that:the phase noise of the frequency source is-90dBc@1kHz,-98dBc@10kHz;the power level of the output greater than 10 dBm,which can meet the requirements of the system.
A design method of the K-band frequency source is introduced in this paper.The chip of LMX2594 Digital PLL is used in this paper,C8051F330MCU is used to do operation in the PLL chip,and then multipliers it to achieve the K-band frequency source,which has lots of characteristics,such as high frequency stability,low phase noise and low spurs.The test results show that:the phase noise of the frequency source is-90dBc@1kHz,-98dBc@10kHz;the power level of the output greater than 10 dBm,which can meet the requirements of the system.
引文
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[3]潘天翼,刘太君,刘丽,陈薇,龙丹桂.X波段LFMCW雷达频率源的设计与实现[J].固体电子学研究与进展,2015,Vol.35:526-530.PAN Tianyi,LIU Taijun,LIU Li,CHEN Wei,LONG Dangui.Design and Implementation of X-band LFMCW Radar Frequency Source.RESEARCH&PROGRESS OF SSE,2015,Vol.35:526-530.
[4]刘韬.基于DDS频率源的设计与实现[J].电子科技,2013,Vol.26:56-58.LIU Tao.Design and Implementation of Frequency Source Based on DDS Device[J].Electronic Sci&Tech,2013Vol.26:56-58.
[5]周勇,李晓波,秦国领.基于HMC833低相噪低杂散频率源的设计[J].舰船电子对抗,2014,Vol.37:115-117.ZHOU Yong,LI Xiao-bo,QING Guo-ling.Design of Low Phase Noise and Low Stray Frequency Source based on HMC833[J].SHIPBOARD ELECTRONIC COUNTERMEASURE,2014,Vol.37:115-117.
[6]潘玉剑,张晓发,袁乃昌.基于HMC830低相噪低杂散频率源的设计[J].电子设计工程,2011,Vol.19:180-186.PAN Yujian,ZHANG Xiao-fa,YUAN Nai-chang.Design of Low Phase Noise and Low Spurious Frequency Source based on HMC830[J].Electronic Design Engineering,2011,V ol.19:180-186.
[7]陆继炳,杨涛.X波段点频源及S波段收发单元设计[J].压电与声光,2011,Vol.34:637-639.LU Jibing,YANG Tao.Design of X-band Frequency Synthesizer Based on PLL[J].PIEZOELECTRICS&AC OUSTOOPTICS,2012,Vol.34:637-639.
[8]赵亚妮,陆继炳,杨涛.基于锁相环原理的X波段频率源的设计与实现[J].压电与声光,2012,Vol.34:637-639.ZHAO Yani,LU Jibing,YANG Tao.Design of X-band Frequency Synthesizer Based on PLL[J].PIEZOELECTRICS&ACOUSTOOPTICS,2012,V ol.34:637-639.