womenmuqianchangshuodejingzhendoushishiyingjingtizhendangqihuozheshiyingjingtixiezhenqidejiancheng。tamendoushiliyongshiyingjingtideyadianxiaoyingzhizuoercheng。zaishiyingjingtidelianggedianjishangshijiadianchanghuishijingtichanshengjixiebianxing，fanzhi，ruguozaijingtiliangceshijiajixieyalijiuhuizaijingtishangchanshengdianchang。bingqie
，zheliangzhongxianxiangshikenide。liyongzhezhongtexing，zaijingtideliangceshijiajiaobiandianya，jingpianjiuhuichanshengjixiezhendong
，tongshichanshengjiaobiandianchang。zhezhongzhendonghedianchangyibandouhenxiao，danshizaimougetedingpinlvxia

，zhenfuhuimingxianjiada，zhejiushiyadianxiezhen
，hewomenchangjiandaodeLC回路諧振有些類似。

jingzhenchuleyadianxiaoyingyiwai

，haiyouyigebunengbeihulvedetexing，jiushiwenpiao。jingzhendezhendangpinlvhuisuizhehuanjingwendudebianhuafashengweixiaodepianyi，zheshijingzhenguyoudetexing。zhengshiyouyuwenpiaodecunzai，putongjingzhendejingduhennanzuodehengao，changjiandejingzhenjingduduowei40ppm
，20ppm
，很難做到10ppm以yi下xia。這zhe種zhong精jing度du在zai一yi些xie對dui晶jing振zhen精jing度du要yao求qiu不bu高gao的de場chang合he
，如ru微wei處chu理li器qi的de時shi鍾zhong輸shu入ru等deng
，完wan全quan能neng夠gou滿man足zu需xu求qiu。但dan是shi在zai無wu線xian通tong信xin，蜂feng窩wo應ying用yong，廣guang播bo電dian視shi等deng應ying用yong領ling域yu，需xu要yao時shi鍾zhong精jing確que同tong步bu，普pu通tong晶jing振zhen就jiu很hen難nan滿man足zu係xi統tong需xu求qiu了le。為wei了le解jie決jue溫wen漂piao帶dai來lai的de影ying響xiang，係xi統tong就jiu要yao選xuan擇ze精jing度du更geng高gao的de溫wen補bu晶jing振zhen或huo者zhe恒heng溫wen晶jing振zhen。溫wen補bu晶jing振zhen是shi通tong過guo感gan應ying環huan境jing溫wen度du
，然ran後hou將jiang溫wen度du信xin息xi轉zhuan換huan成cheng控kong製zhi量liang控kong製zhi晶jing振zhen的de輸shu出chu頻pin率lv。現xian在zai的de溫wen補bu晶jing振zhen多duo采cai用yong數shu字zi化hua技ji術shu

，能neng夠gou達da到dao更geng精jing確que的de控kong製zhi。而er恒heng溫wen晶jing振zhen更geng進jin一yi步bu，將jiang晶jing體ti置zhi於yu恒heng溫wen槽cao內nei，通tong過guo設she置zhi恒heng溫wen工gong作zuo點dian

，使shi恒heng溫wen槽cao保bao持chi一yi個ge恒heng溫wen的de狀zhuang態tai，晶jing體ti在zai恒heng溫wen槽cao內nei就jiu可ke以yi不bu受shou外wai界jie溫wen度du的de影ying響xiang，大da大da提ti高gao晶jing振zhen輸shu出chu頻pin率lv的de穩wen定ding度du。溫wen補bu晶jing振zhen和he恒heng溫wen晶jing振zhen的de輸shu出chu精jing度du都dou能neng夠gou達da到dao1ppm甚至更高。能夠滿足嚴苛的係統需求。

由於晶振在數字電路中的重要性，在使用和設計的時候我們需要小心處理：

a. 晶(jing)振(zhen)內(nei)部(bu)存(cun)在(zai)石(shi)英(ying)晶(jing)體(ti)
，所(suo)以(yi)在(zai)受(shou)到(dao)外(wai)部(bu)撞(zhuang)擊(ji)或(huo)者(zhe)跌(die)落(luo)的(de)時(shi)候(hou)容(rong)易(yi)造(zao)成(cheng)石(shi)英(ying)晶(jing)體(ti)斷(duan)裂(lie)破(po)損(sun)造(zao)成(cheng)晶(jing)振(zhen)失(shi)效(xiao)。在(zai)設(she)計(ji)的(de)時(shi)候(hou)就(jiu)要(yao)考(kao)慮(lv)晶(jing)振(zhen)的(de)可(ke)靠(kao)安(an)裝(zhuang)以(yi)及(ji)位(wei)置(zhi)盡(jin)量(liang)不(bu)要(yao)靠(kao)近(jin)板(ban)邊(bian)，設(she)備(bei)外(wai)殼(ke)等(deng)等(deng)。

b. 在手工焊接或者機器焊接的時候要注意焊接溫度

，晶振對溫度比較敏感，焊接時溫度不能過高，並且加熱時間盡量短。

c. 設she計ji的de時shi候hou盡jin量liang縮suo短duan晶jing振zhen部bu分fen的de走zou線xian，晶jing振zhen走zou線xian和he其qi他ta信xin號hao線xian之zhi間jian保bao留liu盡jin量liang遠yuan的de距ju離li，並bing且qie推tui薦jian將jiang晶jing振zhen的de外wai殼ke接jie地di，這zhe些xie措cuo施shi都dou能neng更geng好hao的de避bi免mian幹gan擾rao。

d. 謹慎選擇C1、C2的容值。盡量按照廠家提供的推薦值設計。在滿足起震要求的前提下，C1、C2的取值可以盡量小，能縮短晶振起震時間。

e. 注zhu意yi晶jing振zhen是shi否fou被bei過guo驅qu動dong，過guo驅qu動dong會hui影ying響xiang晶jing振zhen使shi用yong壽shou命ming。如ru果guo用yong示shi波bo器qi測ce試shi發fa現xian晶jing振zhen的de輸shu出chu被bei削xue波bo，波bo峰feng波bo穀gu被bei削xue平ping，那na麼me就jiu要yao考kao慮lv晶jing振zhen是shi否fou被bei過guo驅qu動dong。可ke以yi適shi當dang調tiao整zhengR1限流電阻的阻值。直到輸出完整的正弦波。

【相關閱讀】
晶振有源和無源的區別
不斷挑戰小型化，大河晶振以新的靈感創造最先進的產品