由(you)于石(shi)英晶(jing)體化學性能非(fei)(fei)常(chang)(chang)(chang)穩(wen)定(ding)，熱膨脹系數非(fei)(fei)常(chang)(chang)(chang)小，其振(zhen)(zhen)蕩(dang)頻(pin)率也非(fei)(fei)常(chang)(chang)(chang)穩(wen)定(ding)，由(you)于控制幾(ji)何尺寸可(ke)以(yi)做到很精密，因此，其諧振(zhen)(zhen)頻(pin)率也很準確(que)。根據石(shi)英晶(jing)體的(de)(de)(de)(de)機電(dian)(dian)(dian)效應，我(wo)們可(ke)以(yi)把(ba)它(ta)(ta)等效為一個電(dian)(dian)(dian)磁振(zhen)(zhen)蕩(dang)回(hui)路(lu)(lu)，即諧振(zhen)(zhen)回(hui)路(lu)(lu)。他(ta)們的(de)(de)(de)(de)機電(dian)(dian)(dian)效應是(shi)機-電(dian)(dian)(dian)-機-電(dian)(dian)(dian)的(de)(de)(de)(de)不斷轉(zhuan)換(huan)，由(you)電(dian)(dian)(dian)感(gan)和電(dian)(dian)(dian)容組成的(de)(de)(de)(de)諧振(zhen)(zhen)回(hui)路(lu)(lu)是(shi)電(dian)(dian)(dian)場(chang)-磁場(chang)的(de)(de)(de)(de)不斷轉(zhuan)換(huan)。在電(dian)(dian)(dian)路(lu)(lu)中的(de)(de)(de)(de)應用實際上是(shi)把(ba)它(ta)(ta)當作一個高Q值(zhi)的(de)(de)(de)(de)電(dian)(dian)(dian)磁諧振(zhen)(zhen)回(hui)路(lu)(lu)。由(you)于石(shi)英晶(jing)體的(de)(de)(de)(de)損耗非(fei)(fei)常(chang)(chang)(chang)小，即Q值(zhi)非(fei)(fei)常(chang)(chang)(chang)高，做振(zhen)(zhen)蕩(dang)器(qi)(qi)用時(shi)，可(ke)以(yi)產生(sheng)非(fei)(fei)常(chang)(chang)(chang)穩(wen)定(ding)的(de)(de)(de)(de)振(zhen)(zhen)蕩(dang)，作濾波器(qi)(qi)用，可(ke)以(yi)獲得非(fei)(fei)常(chang)(chang)(chang)穩(wen)定(ding)和陡削的(de)(de)(de)(de)帶(dai)通或帶(dai)阻曲線。線性穩(wen)壓(ya)電(dian)(dian)(dian)源是(shi)比較(jiao)早使用的(de)(de)(de)(de)一類直(zhi)流穩(wen)壓(ya)電(dian)(dian)(dian)源，凱(kai)軒業電(dian)(dian)(dian)子科技(ji)有限公司。湖北(bei)原裝聲表(biao)諧振(zhen)(zhen)器(qi)(qi)

品體(ti)振(zhen)(zhen)(zhen)(zhen)蕩器，簡稱品振(zhen)(zhen)(zhen)(zhen)。在(zai)(zai)電(dian)(dian)(dian)(dian)氣上它(ta)可(ke)(ke)以(yi)等(deng)效成(cheng)一個(ge)電(dian)(dian)(dian)(dian)容和一個(ge)電(dian)(dian)(dian)(dian)阻并聯(lian)再串(chuan)聯(lian)一個(ge)電(dian)(dian)(dian)(dian)容的二(er)端網(wang)絡(luo)，電(dian)(dian)(dian)(dian)工學上這(zhe)(zhe)個(ge)網(wang)絡(luo)有兩(liang)個(ge)諧振(zhen)(zhen)(zhen)(zhen)點，以(yi)頻率(lv)(lv)的高低分(fen)其中(zhong)較(jiao)低的頻率(lv)(lv)是(shi)串(chuan)聯(lian)諧振(zhen)(zhen)(zhen)(zhen)，較(jiao)高的頻率(lv)(lv)足(zu)并聯(lian)諧振(zhen)(zhen)(zhen)(zhen)。由于晶體(ti)自身的特性致使這(zhe)(zhe)兩(liang)個(ge)頻率(lv)(lv)的距離相當的接近，在(zai)(zai)這(zhe)(zhe)個(ge)極窄(zhai)的頻率(lv)(lv)范圍內，品振(zhen)(zhen)(zhen)(zhen)等(deng)效為(wei)一個(ge)電(dian)(dian)(dian)(dian)感，所以(yi)只要品振(zhen)(zhen)(zhen)(zhen)的兩(liang)端并聯(lian)上合適的電(dian)(dian)(dian)(dian)容它(ta)就(jiu)(jiu)會組成(cheng)并聯(lian)諧振(zhen)(zhen)(zhen)(zhen)電(dian)(dian)(dian)(dian)路(lu)。這(zhe)(zhe)個(ge)并聯(lian)諧振(zhen)(zhen)(zhen)(zhen)電(dian)(dian)(dian)(dian)路(lu)加(jia)到一個(ge)負反(fan)饋電(dian)(dian)(dian)(dian)路(lu)中(zhong)就(jiu)(jiu)可(ke)(ke)以(yi)構成(cheng)正弦(xian)波振(zhen)(zhen)(zhen)(zhen)蕩電(dian)(dian)(dian)(dian)路(lu)，由于晶振(zhen)(zhen)(zhen)(zhen)等(deng)效為(wei)電(dian)(dian)(dian)(dian)感的頻率(lv)(lv)范圍很(hen)窄(zhai)，所以(yi)即使其他元件(jian)的參數變化很(hen)大，這(zhe)(zhe)個(ge)振(zhen)(zhen)(zhen)(zhen)蕩器的頻率(lv)(lv)也(ye)不(bu)會有很(hen)大的變化。品振(zhen)(zhen)(zhen)(zhen)有一個(ge)重(zhong)要的參數，那(nei)就(jiu)(jiu)是(shi)負載(zai)(zai)電(dian)(dian)(dian)(dian)容值，選(xuan)擇與負載(zai)(zai)電(dian)(dian)(dian)(dian)容值相等(deng)的并聯(lian)電(dian)(dian)(dian)(dian)容，就(jiu)(jiu)可(ke)(ke)以(yi)得到晶振(zhen)(zhen)(zhen)(zhen)標稱的諧振(zhen)(zhen)(zhen)(zhen)頻率(lv)(lv)。原裝聲表諧振(zhen)(zhen)(zhen)(zhen)器的作用深圳(zhen)市凱軒(xuan)業電(dian)(dian)(dian)(dian)子科技有限公司，歡迎咨詢。

每(mei)個(ge)(ge)單(dan)(dan)片(pian)(pian)機系(xi)統里(li)都有晶(jing)(jing)振，全程是(shi)叫晶(jing)(jing)體(ti)震(zhen)蕩器，在單(dan)(dan)片(pian)(pian)機系(xi)統里(li)晶(jing)(jing)振的(de)(de)(de)作(zuo)用(yong)非常(chang)大，他結合(he)單(dan)(dan)片(pian)(pian)機內部的(de)(de)(de)電路，產生單(dan)(dan)片(pian)(pian)機所必須(xu)的(de)(de)(de)時(shi)鐘(zhong)(zhong)頻(pin)率(lv)(lv)，單(dan)(dan)片(pian)(pian)機的(de)(de)(de)一(yi)(yi)切指令(ling)的(de)(de)(de)執行都是(shi)建立在這個(ge)(ge)基礎上(shang)的(de)(de)(de)，晶(jing)(jing)振的(de)(de)(de)提(ti)(ti)供的(de)(de)(de)時(shi)鐘(zhong)(zhong)頻(pin)率(lv)(lv)越高(gao)，那單(dan)(dan)片(pian)(pian)機的(de)(de)(de)運(yun)行速(su)度(du)也(ye)就(jiu)越快。晶(jing)(jing)振用(yong)一(yi)(yi)種能把電能和機械(xie)能相(xiang)(xiang)互轉(zhuan)化的(de)(de)(de)晶(jing)(jing)體(ti)在共振的(de)(de)(de)狀態下工作(zuo)，以提(ti)(ti)供穩(wen)定(ding)，精確的(de)(de)(de)單(dan)(dan)頻(pin)振蕩。在通(tong)(tong)常(chang)工作(zuo)條件下，普(pu)通(tong)(tong)的(de)(de)(de)晶(jing)(jing)振頻(pin)率(lv)(lv)的(de)(de)(de)精度(du)可達百(bai)萬分之五十(shi)，高(gao)級(ji)的(de)(de)(de)精度(du)更高(gao)。有些晶(jing)(jing)振還可以由外(wai)加電壓(ya)在一(yi)(yi)定(ding)范(fan)圍(wei)內調(diao)整(zheng)頻(pin)率(lv)(lv)，稱為(wei)壓(ya)控振蕩器（VCO）。晶(jing)(jing)振系(xi)統提(ti)(ti)供基本的(de)(de)(de)時(shi)鐘(zhong)(zhong)信號(hao)通(tong)(tong)常(chang)一(yi)(yi)個(ge)(ge)系(xi)統共用(yong)一(yi)(yi)個(ge)(ge)晶(jing)(jing)振，便于各(ge)部分保(bao)持(chi)同(tong)步，有些通(tong)(tong)訊系(xi)統的(de)(de)(de)基頻(pin)和射使用(yong)不(bu)同(tong)的(de)(de)(de)晶(jing)(jing)振，而通(tong)(tong)過電子調(diao)整(zheng)頻(pin)率(lv)(lv)的(de)(de)(de)方法保(bao)持(chi)同(tong)步。晶(jing)(jing)振通(tong)(tong)常(chang)與(yu)鎖相(xiang)(xiang)環電路配(pei)合(he)使用(yong)，以提(ti)(ti)供系(xi)統所需的(de)(de)(de)時(shi)鐘(zhong)(zhong)頻(pin)率(lv)(lv)。如果不(bu)同(tong)子系(xi)統需要不(bu)同(tong)頻(pin)率(lv)(lv)的(de)(de)(de)時(shi)鐘(zhong)(zhong)信號(hao)，可以用(yong)與(yu)同(tong)一(yi)(yi)個(ge)(ge)晶(jing)(jing)振相(xiang)(xiang)連的(de)(de)(de)不(bu)同(tong)鎖相(xiang)(xiang)環來提(ti)(ti)供。

1.無(wu)(wu)源(yuan)品(pin)振(zhen)(zhen)是(shi)有 2個引腳的(de)(de)無(wu)(wu)極(ji)性元件需(xu)(xu)要(yao)(yao)借助于(yu)(yu)時鐘電(dian)(dian)(dian)(dian)路(lu)才能產(chan)生振(zhen)(zhen)蕩信(xin)號(hao)，自(zi)身無(wu)(wu)法振(zhen)(zhen)蕩起來 無(wu)(wu)源(yuan)晶(jing)(jing)振(zhen)(zhen)需(xu)(xu)要(yao)(yao)用(yong)(yong)DSP 片內的(de)(de)振(zhen)(zhen)蕩器，在 datasheet 上有建議(yi)的(de)(de)連接方(fang)法。無(wu)(wu)源(yuan)晶(jing)(jing)振(zhen)(zhen)沒有電(dian)(dian)(dian)(dian)壓的(de)(de)問題(ti)，信(xin)號(hao)電(dian)(dian)(dian)(dian)平(ping)是(shi)可(ke)變的(de)(de)，也就是(shi)說(shuo)是(shi)根據(ju)起振(zhen)(zhen)電(dian)(dian)(dian)(dian)路(lu)來決(jue)定的(de)(de)，同(tong)樣的(de)(de)晶(jing)(jing)振(zhen)(zhen)可(ke)以(yi)適(shi)用(yong)(yong)于(yu)(yu)多種電(dian)(dian)(dian)(dian)壓，可(ke)用(yong)(yong)于(yu)(yu)多種不同(tong)時鐘信(xin)號(hao)電(dian)(dian)(dian)(dian)壓要(yao)(yao)求的(de)(de) DSP，而且(qie)價格通常(chang)也較低，因此對于(yu)(yu)一般的(de)(de)應用(yong)(yong)如果(guo)條件許可(ke)建議(yi)用(yong)(yong)晶(jing)(jing)體(ti)，這(zhe)尤其(qi)適(shi)合(he)于(yu)(yu)產(chan)品(pin)線豐(feng)富批(pi)量(liang)大的(de)(de)生產(chan)者(zhe)。無(wu)(wu)源(yuan)晶(jing)(jing)振(zhen)(zhen)相對于(yu)(yu)晶(jing)(jing)振(zhen)(zhen)而言其(qi)缺陷是(shi)信(xin)號(hao)質量(liang)較差(cha)，通常(chang)需(xu)(xu)要(yao)(yao)精確匹(pi)配外部電(dian)(dian)(dian)(dian)路(lu) (用(yong)(yong)于(yu)(yu)信(xin)號(hao)匹(pi)配的(de)(de)電(dian)(dian)(dian)(dian)容、電(dian)(dian)(dian)(dian)感、電(dian)(dian)(dian)(dian)阻等)，更(geng)換(huan)不同(tong)頻(pin)率的(de)(de)品(pin)體(ti)時周邊配置電(dian)(dian)(dian)(dian)路(lu)需(xu)(xu)要(yao)(yao)做相應的(de)(de)調(diao)整。使用(yong)(yong)時建議(yi)采用(yong)(yong)精度較高的(de)(de)石英晶(jing)(jing)體(ti)，盡可(ke)能不要(yao)(yao)采用(yong)(yong)精度低的(de)(de)陶瓷晶(jing)(jing)體(ti)。聲(sheng)表諧振(zhen)(zhen)器有需(xu)(xu)要(yao)(yao)的(de)(de)咨(zi)詢深圳(zhen)凱(kai)軒業電(dian)(dian)(dian)(dian)子科技有限公司(si)，品(pin)質的(de)(de)信(xin)賴之選(xuan)。

晶(jing)(jing)(jing)振(zhen)(zhen)全稱(cheng)為(wei)晶(jing)(jing)(jing)體(ti)振(zhen)(zhen)蕩器(qi)，其(qi)作(zuo)用(yong)在于(yu)產生原始的(de)(de)時(shi)(shi)鐘(zhong)頻(pin)(pin)率(lv)，這個(ge)頻(pin)(pin)率(lv)晶(jing)(jing)(jing)振(zhen)(zhen)經(jing)過頻(pin)(pin)率(lv)發生器(qi)的(de)(de)放大或縮小后就成了電(dian)(dian)腦中各(ge)種(zhong)不(bu)(bu)同(tong)的(de)(de)總線(xian)頻(pin)(pin)率(lv)。晶(jing)(jing)(jing)振(zhen)(zhen)一般叫做晶(jing)(jing)(jing)體(ti)諧振(zhen)(zhen)器(qi)，是(shi)一種(zhong)機(ji)(ji)(ji)電(dian)(dian)器(qi)件，是(shi)用(yong)電(dian)(dian)損耗很(hen)(hen)小的(de)(de)石(shi)英晶(jing)(jing)(jing)體(ti)經(jing)精密切(qie)割磨削并鍍上電(dian)(dian)極焊上引線(xian)做成。晶(jing)(jing)(jing)體(ti)有(you)(you)一個(ge)很(hen)(hen)重要(yao)的(de)(de)特性，如(ru)(ru)果(guo)給(gei)它通電(dian)(dian)，它就會產生機(ji)(ji)(ji)械(xie)振(zhen)(zhen)蕩，反之，如(ru)(ru)果(guo)給(gei)它機(ji)(ji)(ji)械(xie)力，它又會產生電(dian)(dian)，這種(zhong)特性叫機(ji)(ji)(ji)電(dian)(dian)效應(ying)。他(ta)們(men)有(you)(you)一個(ge)很(hen)(hen)重要(yao)的(de)(de)特點，其(qi)振(zhen)(zhen)蕩頻(pin)(pin)率(lv)與(yu)他(ta)們(men)的(de)(de)形狀，材料，切(qie)割方(fang)向(xiang)等密切(qie)相關。晶(jing)(jing)(jing)振(zhen)(zhen)通常與(yu)鎖相環(huan)電(dian)(dian)路配合(he)使用(yong)，以提供系統(tong)所需(xu)的(de)(de)時(shi)(shi)鐘(zhong)頻(pin)(pin)率(lv)。如(ru)(ru)果(guo)不(bu)(bu)同(tong)子(zi)系統(tong)需(xu)要(yao)不(bu)(bu)同(tong)頻(pin)(pin)率(lv)的(de)(de)時(shi)(shi)鐘(zhong)信號，可以用(yong)與(yu)同(tong)一個(ge)晶(jing)(jing)(jing)振(zhen)(zhen)相連(lian)的(de)(de)不(bu)(bu)同(tong)鎖相環(huan)來(lai)提供。深(shen)圳市凱軒業科技有(you)(you)限公司(si)，聲表諧振(zhen)(zhen)器(qi)信賴(lai)之選。安(an)徽聲表諧振(zhen)(zhen)器(qi)廠家

原裝聲(sheng)(sheng)表諧振器選深圳凱軒業電子有(you)限公司。湖(hu)北原裝聲(sheng)(sheng)表諧振器

通常(chang)廠家的(de)(de)(de)晶(jing)(jing)(jing)振(zhen)(zhen)(zhen)元件(jian)(jian)數據手冊給出的(de)(de)(de)標稱(cheng)頻(pin)(pin)(pin)(pin)率(lv)(lv)(lv)不(bu)(bu)是(shi)(shi)Fr或(huo)FL，實際的(de)(de)(de)晶(jing)(jing)(jing)體(ti)(ti)(ti)元件(jian)(jian)應(ying)用于振(zhen)(zhen)(zhen)蕩電(dian)(dian)(dian)(dian)(dian)(dian)路(lu)中時(shi)，它一(yi)般(ban)還(huan)會與負(fu)載電(dian)(dian)(dian)(dian)(dian)(dian)容相(xiang)(xiang)聯接(jie)，共同作用使(shi)晶(jing)(jing)(jing)體(ti)(ti)(ti)工(gong)作于Fr和(he)FL之(zhi)間的(de)(de)(de)某個(ge)(ge)頻(pin)(pin)(pin)(pin)率(lv)(lv)(lv)，這(zhe)個(ge)(ge)頻(pin)(pin)(pin)(pin)率(lv)(lv)(lv)由振(zhen)(zhen)(zhen)蕩電(dian)(dian)(dian)(dian)(dian)(dian)路(lu)的(de)(de)(de)相(xiang)(xiang)位和(he)有效電(dian)(dian)(dian)(dian)(dian)(dian)抗(kang)(kang)確(que)定，通過改變(bian)電(dian)(dian)(dian)(dian)(dian)(dian)路(lu)的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)抗(kang)(kang)條件(jian)(jian)，就可(ke)(ke)以在(zai)有限的(de)(de)(de)范(fan)圍(wei)內調(diao)節晶(jing)(jing)(jing)體(ti)(ti)(ti)頻(pin)(pin)(pin)(pin)率(lv)(lv)(lv)。串接(jie)的(de)(de)(de)小電(dian)(dian)(dian)(dian)(dian)(dian)容CL可(ke)(ke)以使(shi)石(shi)英晶(jing)(jing)(jing)體(ti)(ti)(ti)的(de)(de)(de)諧(xie)(xie)振(zhen)(zhen)(zhen)頻(pin)(pin)(pin)(pin)率(lv)(lv)(lv)在(zai)一(yi)個(ge)(ge)小范(fan)圍(wei)內調(diao)整(zheng)當晶(jing)(jing)(jing)體(ti)(ti)(ti)元件(jian)(jian)與外(wai)部電(dian)(dian)(dian)(dian)(dian)(dian)容相(xiang)(xiang)連接(jie)時(shi)（并聯或(huo)串聯），在(zai)負(fu)載諧(xie)(xie)振(zhen)(zhen)(zhen)頻(pin)(pin)(pin)(pin)率(lv)(lv)(lv)時(shi)的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)阻即為負(fu)載諧(xie)(xie)振(zhen)(zhen)(zhen)電(dian)(dian)(dian)(dian)(dian)(dian)阻RL，它總是(shi)(shi)大于晶(jing)(jing)(jing)體(ti)(ti)(ti)元件(jian)(jian)本(ben)(ben)身的(de)(de)(de)諧(xie)(xie)振(zhen)(zhen)(zhen)電(dian)(dian)(dian)(dian)(dian)(dian)阻。晶(jing)(jing)(jing)體(ti)(ti)(ti)本(ben)(ben)身是(shi)(shi)不(bu)(bu)能產生振(zhen)(zhen)(zhen)蕩信號的(de)(de)(de)，必須借助于相(xiang)(xiang)應(ying)的(de)(de)(de)外(wai)部振(zhen)(zhen)(zhen)蕩器電(dian)(dian)(dian)(dian)(dian)(dian)路(lu)才能實現，下(xia)圖是(shi)(shi)一(yi)個(ge)(ge)串聯型振(zhen)(zhen)(zhen)蕩器電(dian)(dian)(dian)(dian)(dian)(dian)路(lu)，其中，晶(jing)(jing)(jing)體(ti)(ti)(ti)管Q1、Q2構成的(de)(de)(de)兩級放大器，石(shi)英晶(jing)(jing)(jing)體(ti)(ti)(ti)X1與電(dian)(dian)(dian)(dian)(dian)(dian)容CL構成LC電(dian)(dian)(dian)(dian)(dian)(dian)路(lu)。在(zai)這(zhe)個(ge)(ge)電(dian)(dian)(dian)(dian)(dian)(dian)路(lu)中，石(shi)英晶(jing)(jing)(jing)體(ti)(ti)(ti)相(xiang)(xiang)當于一(yi)個(ge)(ge)電(dian)(dian)(dian)(dian)(dian)(dian)感，CL為可(ke)(ke)變(bian)電(dian)(dian)(dian)(dian)(dian)(dian)容器，調(diao)節其容量即可(ke)(ke)使(shi)電(dian)(dian)(dian)(dian)(dian)(dian)路(lu)進入諧(xie)(xie)振(zhen)(zhen)(zhen)狀(zhuang)態，輸出波形為方(fang)波。湖北原裝聲表諧(xie)(xie)振(zhen)(zhen)(zhen)器

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