天文研究与技术－国家天文台台刊
天文研究與技術－國傢天文檯檯刊
천문연구여기술－국가천문태태간
ASTRONOMICAL RESEARCH & TECHNOLOGY-PUBLICATIONS OF NATIONAL ASTRONOMICAL OBSERVATORIES OF CHINA
2009年
4期
276-279
,共4页
甘恒谦%陈宏昇%高龙%金乘进
甘恆謙%陳宏昇%高龍%金乘進
감항겸%진굉승%고룡%금승진
射电望远镜%接收机%本地振荡器%锁相环PLL
射電望遠鏡%接收機%本地振盪器%鎖相環PLL
사전망원경%접수궤%본지진탕기%쇄상배PLL
Radio Telescope%receiver%local oscillator%phase locked loop
介绍了以国家半导体公司的LMX2306芯片为主要元件,构建的锁相环型振荡器.该设计具有电路简易,输出频率可由计算机实时控制,功耗小,输出稳定等优点.该振荡器用于FAST模型接收机,作为基带混频的本地振荡器.在观测实验中,证明该振荡器工作正常,性能稳定.
介紹瞭以國傢半導體公司的LMX2306芯片為主要元件,構建的鎖相環型振盪器.該設計具有電路簡易,輸齣頻率可由計算機實時控製,功耗小,輸齣穩定等優點.該振盪器用于FAST模型接收機,作為基帶混頻的本地振盪器.在觀測實驗中,證明該振盪器工作正常,性能穩定.
개소료이국가반도체공사적LMX2306심편위주요원건,구건적쇄상배형진탕기.해설계구유전로간역,수출빈솔가유계산궤실시공제,공모소,수출은정등우점.해진탕기용우FAST모형접수궤,작위기대혼빈적본지진탕기.재관측실험중,증명해진탕기공작정상,성능은정.
This paper presents a phase locked loop oscillator based on an LMX2306 chip of the National Semiconductor.The oscillator has many merits,such as convienience in assembling,real-time computer controlability,low-level power consumption,long-time operational stability,and flexibility in programming.The oscillator has been used in the receiver of the demonstrative model of the FAST as a local oscillator for the second down converter.Its performance has been proved by observational experiments with the demonstrative model.
