無源晶(jing)(jing)(jing)(jing)振是(shi)(shi)(shi)有2個引(yin)腳的(de)(de)(de)(de)無極性(xing)元件(jian)(jian)需要借助于(yu)時鐘電(dian)(dian)(dian)路才能(neng)(neng)產生振蕩信(xin)號(hao)(hao)，自身(shen)無法振蕩起來(lai) 無源晶(jing)(jing)(jing)(jing)振需要用(yong)DSP片內的(de)(de)(de)(de)振蕩器(qi)，在datasheet上(shang)有建議的(de)(de)(de)(de)連接(jie)方法。無源晶(jing)(jing)(jing)(jing)振沒有電(dian)(dian)(dian)壓的(de)(de)(de)(de)問題，信(xin)號(hao)(hao)電(dian)(dian)(dian)平是(shi)(shi)(shi)可(ke)(ke)(ke)變的(de)(de)(de)(de)，也(ye)就是(shi)(shi)(shi)說是(shi)(shi)(shi)根據起振電(dian)(dian)(dian)路來(lai)決定(ding)的(de)(de)(de)(de)，同(tong)樣的(de)(de)(de)(de)晶(jing)(jing)(jing)(jing)振可(ke)(ke)(ke)以適用(yong)于(yu)多(duo)種(zhong)電(dian)(dian)(dian)壓，可(ke)(ke)(ke)用(yong)于(yu)多(duo)種(zhong)不同(tong)時鐘信(xin)號(hao)(hao)電(dian)(dian)(dian)壓要求的(de)(de)(de)(de)DSP，而且價格通常也(ye)較低(di)，因此對于(yu)一般的(de)(de)(de)(de)應用(yong)如果條(tiao)件(jian)(jian)許(xu)可(ke)(ke)(ke)建議用(yong)晶(jing)(jing)(jing)(jing)體(ti)，這尤其適合于(yu)產品線(xian)豐富批(pi)量大的(de)(de)(de)(de)生產者。無源晶(jing)(jing)(jing)(jing)振相(xiang)對于(yu)晶(jing)(jing)(jing)(jing)振而言其缺陷是(shi)(shi)(shi)信(xin)號(hao)(hao)質量較差，通常需要精(jing)確匹配(pei)外部電(dian)(dian)(dian)路（用(yong)于(yu)信(xin)號(hao)(hao)匹配(pei)的(de)(de)(de)(de)電(dian)(dian)(dian)容(rong)、電(dian)(dian)(dian)感、電(dian)(dian)(dian)阻等），更(geng)換不同(tong)頻率的(de)(de)(de)(de)晶(jing)(jing)(jing)(jing)體(ti)時周邊配(pei)置電(dian)(dian)(dian)路需要做相(xiang)應的(de)(de)(de)(de)調整。使用(yong)時建議采用(yong)精(jing)度(du)較高的(de)(de)(de)(de)石英晶(jing)(jing)(jing)(jing)體(ti)，盡可(ke)(ke)(ke)能(neng)(neng)不要采用(yong)精(jing)度(du)低(di)的(de)(de)(de)(de)陶瓷晶(jing)(jing)(jing)(jing)體(ti)。 聲表(biao)諧振器(qi)原裝廠(chang)家直銷選凱軒業(ye)電(dian)(dian)(dian)子科技有限公(gong)司。機械(xie)聲表(biao)諧振器(qi)批(pi)發廠(chang)家

晶(jing)(jing)(jing)體本身不能產(chan)生振(zhen)(zhen)(zhen)(zhen)蕩(dang)(dang)(dang)信號(hao)，必須(xu)借助于外(wai)部(bu)的(de)(de)振(zhen)(zhen)(zhen)(zhen)蕩(dang)(dang)(dang)器(qi)(qi)(qi)電(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(兩端施加電(dian)(dian)(dian)(dian)(dian)(dian)壓)，即：振(zhen)(zhen)(zhen)(zhen)蕩(dang)(dang)(dang)信號(hao)的(de)(de)產(chan)生 = 振(zhen)(zhen)(zhen)(zhen)蕩(dang)(dang)(dang)器(qi)(qi)(qi)件(jian) + 振(zhen)(zhen)(zhen)(zhen)蕩(dang)(dang)(dang)器(qi)(qi)(qi)電(dian)(dian)(dian)(dian)(dian)(dian)路(lu)其(qi)中，振(zhen)(zhen)(zhen)(zhen)蕩(dang)(dang)(dang)器(qi)(qi)(qi)件(jian)除(chu)了晶(jing)(jing)(jing)振(zhen)(zhen)(zhen)(zhen)外(wai)，還可以(yi)是(shi)RC振(zhen)(zhen)(zhen)(zhen)蕩(dang)(dang)(dang)電(dian)(dian)(dian)(dian)(dian)(dian)路(lu)，LC振(zhen)(zhen)(zhen)(zhen)蕩(dang)(dang)(dang)電(dian)(dian)(dian)(dian)(dian)(dian)路(lu)等 有(you)(you)源(yuan)(yuan)晶(jing)(jing)(jing)振(zhen)(zhen)(zhen)(zhen)和無(wu)源(yuan)(yuan)晶(jing)(jing)(jing)振(zhen)(zhen)(zhen)(zhen)的(de)(de)區別無(wu)源(yuan)(yuan)晶(jing)(jing)(jing)振(zhen)(zhen)(zhen)(zhen)嚴格意(yi)義上來(lai)說應(ying)該叫做晶(jing)(jing)(jing)體(元(yuan)(yuan)件(jian)名稱為(wei)Cystal，晶(jing)(jing)(jing)體)無(wu)源(yuan)(yuan)晶(jing)(jing)(jing)振(zhen)(zhen)(zhen)(zhen)內(nei)部(bu)是(shi)石英晶(jing)(jing)(jing)體切片(pian)，無(wu)源(yuan)(yuan)晶(jing)(jing)(jing)振(zhen)(zhen)(zhen)(zhen)沒有(you)(you)時鐘(zhong)(zhong)電(dian)(dian)(dian)(dian)(dian)(dian)路(lu)相對于無(wu)源(yuan)(yuan)晶(jing)(jing)(jing)振(zhen)(zhen)(zhen)(zhen)，有(you)(you)源(yuan)(yuan)晶(jing)(jing)(jing)振(zhen)(zhen)(zhen)(zhen)（元(yuan)(yuan)件(jian)名稱為(wei)Oscillator，振(zhen)(zhen)(zhen)(zhen)蕩(dang)(dang)(dang)器(qi)(qi)(qi)）內(nei)部(bu)的(de)(de)其(qi)他元(yuan)(yuan)件(jian)構(gou)成時鐘(zhong)(zhong)電(dian)(dian)(dian)(dian)(dian)(dian)路(lu)無(wu)源(yuan)(yuan)晶(jing)(jing)(jing)振(zhen)(zhen)(zhen)(zhen)使(shi)用(yong)時，需要自己設計(ji)(ji)振(zhen)(zhen)(zhen)(zhen)蕩(dang)(dang)(dang)電(dian)(dian)(dian)(dian)(dian)(dian)路(lu)，例(li)如利(li)用(yong)STM32內(nei)部(bu)的(de)(de)HSE提供時鐘(zhong)(zhong)電(dian)(dian)(dian)(dian)(dian)(dian)路(lu)無(wu)源(yuan)(yuan)晶(jing)(jing)(jing)振(zhen)(zhen)(zhen)(zhen)的(de)(de)優勢在于，由于沒有(you)(you)外(wai)部(bu)電(dian)(dian)(dian)(dian)(dian)(dian)路(lu)，因此支(zhi)持的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)位(wei)更多，方便根據自己設計(ji)(ji)的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)路(lu)進行(xing)調整(zheng)機械聲(sheng)表諧振(zhen)(zhen)(zhen)(zhen)器(qi)(qi)(qi)批發廠(chang)家深圳市凱軒業科技廠(chang)家直銷，原裝聲(sheng)表諧振(zhen)(zhen)(zhen)(zhen)器(qi)(qi)(qi)。

晶(jing)(jing)體(ti)(ti)振(zhen)(zhen)(zhen)(zhen)蕩(dang)器（crystal oscillator）是(shi)指從一(yi)塊石(shi)英晶(jing)(jing)體(ti)(ti)上按一(yi)定方位角(jiao)(jiao)切下薄片（簡稱為晶(jing)(jing)片），石(shi)英晶(jing)(jing)體(ti)(ti)諧振(zhen)(zhen)(zhen)(zhen)器，簡稱為石(shi)英晶(jing)(jing)體(ti)(ti)或(huo)晶(jing)(jing)體(ti)(ti)、晶(jing)(jing)振(zhen)(zhen)(zhen)(zhen)；而在(zai)(zai)封(feng)裝內部添加IC組(zu)成振(zhen)(zhen)(zhen)(zhen)蕩(dang)電(dian)路的晶(jing)(jing)體(ti)(ti)元件稱為晶(jing)(jing)體(ti)(ti)振(zhen)(zhen)(zhen)(zhen)蕩(dang)器。其產(chan)品(pin)一(yi)般用金屬外殼封(feng)裝，也有用玻(bo)璃殼、陶(tao)瓷(ci)或(huo)塑料(liao)封(feng)裝的。晶(jing)(jing)振(zhen)(zhen)(zhen)(zhen)廣大(da)應用、民用通信(xin)電(dian)臺，微波通信(xin)設備(bei)，程控電(dian)話交換(huan)機(ji)，無線電(dian)綜合測試儀(yi)、移(yi)動(dong)電(dian)話發射臺，高級(ji)頻率計數器、GPS、衛星通信(xin)、遙控移(yi)動(dong)設備(bei)等(deng)，是(shi)電(dian)子產(chan)品(pin)較常用的不可(ke)或(huo)缺的組(zu)件，小到(dao)手(shou)機(ji)、電(dian)腦，大(da)到(dao)導彈、衛星都(dou)需(xu)要(yao)晶(jing)(jing)體(ti)(ti)振(zhen)(zhen)(zhen)(zhen)蕩(dang)器，其被譽為電(dian)子設備(bei)的心(xin)臟，在(zai)(zai)電(dian)子系統(tong)中扮演關鍵(jian)角(jiao)(jiao)色。

聲(sheng)(sheng)(sheng)(sheng)表(biao)(biao)面(mian)波(bo)(bo)(bo)(bo)(SAW)諧(xie)振器(qi)(qi)(qi)(qi)聲(sheng)(sheng)(sheng)(sheng)表(biao)(biao)面(mian)波(bo)(bo)(bo)(bo)濾波(bo)(bo)(bo)(bo)器(qi)(qi)(qi)(qi)/SAW 聲(sheng)(sheng)(sheng)(sheng)表(biao)(biao)面(mian)波(bo)(bo)(bo)(bo)諧(xie)振器(qi)(qi)(qi)(qi)(surface- acoustic- wave)。SAW 聲(sheng)(sheng)(sheng)(sheng)表(biao)(biao)面(mian)波(bo)(bo)(bo)(bo)元件主(zhu)要(yao)作用(yong)(yong)原理是利(li)用(yong)(yong)壓電材料的(de)(de)壓電特(te)性(xing)(xing)，利(li)用(yong)(yong)輸入與(yu)輸出換(huan)能器(qi)(qi)(qi)(qi)（Transducer）將電波(bo)(bo)(bo)(bo)的(de)(de)輸入訊(xun)號(hao)轉換(huan)成機(ji)(ji)械(xie)能，經(jing)過處理后，再把機(ji)(ji)械(xie)能轉換(huan)成電的(de)(de)訊(xun)號(hao)，以達到過濾不必要(yao)的(de)(de)訊(xun)號(hao)及(ji)雜訊(xun)，提升收訊(xun)品質的(de)(de)目標。被廣大應(ying)(ying)用(yong)(yong)在各(ge)種(zhong)無線(xian)通(tong)訊(xun)系(xi)統、電視機(ji)(ji)、錄放(fang)影機(ji)(ji)及(ji)全球衛星定(ding)位系(xi)統接收器(qi)(qi)(qi)(qi)上。主(zhu)要(yao)功(gong)用(yong)(yong)在于把雜訊(xun)濾掉，比傳統的(de)(de) LC 濾波(bo)(bo)(bo)(bo)器(qi)(qi)(qi)(qi)安裝(zhuang)更(geng)簡(jian)單、體積更(geng)小。 SAW 聲(sheng)(sheng)(sheng)(sheng)表(biao)(biao)面(mian)波(bo)(bo)(bo)(bo)元件的(de)(de)制(zhi)作可分為晶圓清洗、鍍金(jin)屬膜、上光(guang)阻、顯影、蝕刻、去光(guang)阻、切割、封裝(zhuang)、等相關步驟，具有可大量生產、損(sun)耗低(di)(di)及(ji)選擇性(xing)(xing)高(gao)，適用(yong)(yong)于各(ge)型手機(ji)(ji)等特(te)點(dian)。有性(xing)(xing)能穩(wen)定(ding)、尺寸小的(de)(de)特(te)點(dian)，主(zhu)要(yao)應(ying)(ying)用(yong)(yong)于無線(xian)設備。聲(sheng)(sheng)(sheng)(sheng)表(biao)(biao)濾波(bo)(bo)(bo)(bo)器(qi)(qi)(qi)(qi)中的(de)(de)FL系(xi)列(lie)主(zhu)要(yao)應(ying)(ying)用(yong)(yong)于蜂窩如移(yi)動通(tong)訊(xun)、接收器(qi)(qi)(qi)(qi)等。FM系(xi)列(lie)有低(di)(di)損(sun)耗性(xing)(xing)、高(gao)級(ji)度(du)的(de)(de)排他性(xing)(xing)以及(ji)對外(wai)部阻抗的(de)(de)低(di)(di)匹配性(xing)(xing)。它可應(ying)(ying)用(yong)(yong)于汽(qi)車TPMS、遠(yuan)程無鍵進入(RKE)、安全系(xi)統和有源RFID標簽。聲(sheng)(sheng)(sheng)(sheng)表(biao)(biao)諧(xie)振器(qi)(qi)(qi)(qi)深(shen)圳市凱軒業(ye)科(ke)技(ji)有限公司，歡迎親咨(zi)詢。

晶(jing)(jing)振(zhen)(zhen)用(yong)一種能(neng)(neng)把電(dian)能(neng)(neng)和機械能(neng)(neng)相互轉(zhuan)化的(de)晶(jing)(jing)體在(zai)共(gong)振(zhen)(zhen)的(de)狀(zhuang)態下工作(zuo)，以提(ti)供(gong)穩定，精確的(de)單頻(pin)(pin)振(zhen)(zhen)蕩(dang)。在(zai)通(tong)(tong)常(chang)工作(zuo)條件(jian)下，普(pu)通(tong)(tong)的(de)晶(jing)(jing)振(zhen)(zhen)頻(pin)(pin)率(lv)的(de)精度可(ke)達百萬分(fen)之五十。高(gao)級的(de)精度更(geng)高(gao)。有些晶(jing)(jing)振(zhen)(zhen)還可(ke)以由(you)外(wai)加電(dian)壓(ya)在(zai)一定范圍(wei)內(nei)調整頻(pin)(pin)率(lv)，稱為壓(ya)控振(zhen)(zhen)蕩(dang)器(qi)(qi)（VCO）。晶(jing)(jing)振(zhen)(zhen)的(de)作(zuo)用(yong)是(shi)為系(xi)(xi)統(tong)提(ti)供(gong)基(ji)本的(de)時(shi)鐘信(xin)號(hao)(hao)。通(tong)(tong)常(chang)一個(ge)(ge)系(xi)(xi)統(tong)共(gong)用(yong)一個(ge)(ge)晶(jing)(jing)振(zhen)(zhen)，便于各(ge)部分(fen)保持(chi)同(tong)步。有些通(tong)(tong)訊系(xi)(xi)統(tong)的(de)基(ji)頻(pin)(pin)和射(she)頻(pin)(pin)使(shi)用(yong)不同(tong)的(de)晶(jing)(jing)振(zhen)(zhen)，而通(tong)(tong)過(guo)電(dian)子(zi)調整頻(pin)(pin)率(lv)的(de)方(fang)法保持(chi)同(tong)步。無(wu)源(yuan)晶(jing)(jing)振(zhen)(zhen)為crystal（晶(jing)(jing)體）無(wu)源(yuan)晶(jing)(jing)振(zhen)(zhen)是(shi)有2個(ge)(ge)引腳(jiao)的(de)無(wu)極性元件(jian)，需要(yao)借助(zhu)于時(shi)鐘電(dian)路(lu)才能(neng)(neng)產(chan)生振(zhen)(zhen)蕩(dang)信(xin)號(hao)(hao)，自身無(wu)法蕩(dang)起來；原(yuan)裝芯片，廠家直銷聲表諧振(zhen)(zhen)器(qi)(qi)歡迎新老客(ke)戶咨詢(xun)。機械聲表諧振(zhen)(zhen)器(qi)(qi)批發廠家

線性穩壓電(dian)源調節(jie)濾(lv)波后(hou)的(de)直流電(dian)壓，以使輸入電(dian)壓達到要求的(de)值和(he)精度要求。凱軒(xuan)業。機械聲表諧振器批(pi)發廠家

內(nei)(nei)(nei)部(bu)(bu)時(shi)鐘(zhong)與(yu)外部(bu)(bu)時(shi)鐘(zhong)現在(zai)很多的(de)(de)(de)(de)(de)處(chu)(chu)(chu)理(li)(li)(li)器(qi)(qi)內(nei)(nei)(nei)部(bu)(bu)都會自帶一個(ge)振(zhen)(zhen)蕩(dang)電路(lu)(lu)，因(yin)此，這(zhe)(zhe)一類(lei)的(de)(de)(de)(de)(de)處(chu)(chu)(chu)理(li)(li)(li)器(qi)(qi)外部(bu)(bu)時(shi)鐘(zhong)是(shi)(shi)(shi)指(zhi)自己內(nei)(nei)(nei)部(bu)(bu)的(de)(de)(de)(de)(de)振(zhen)(zhen)蕩(dang)電路(lu)(lu)搭(da)配外部(bu)(bu)的(de)(de)(de)(de)(de)無源(yuan)晶(jing)(jing)振(zhen)(zhen) 也可以(yi)用有(you)源(yuan)晶(jing)(jing)振(zhen)(zhen)，不經過(guo)處(chu)(chu)(chu)理(li)(li)(li)器(qi)(qi)內(nei)(nei)(nei)部(bu)(bu)自帶的(de)(de)(de)(de)(de)起(qi)振(zhen)(zhen)電路(lu)(lu)。還有(you)一些處(chu)(chu)(chu)理(li)(li)(li)器(qi)(qi)，沒有(you)帶起(qi)振(zhen)(zhen)電路(lu)(lu)，所(suo)(suo)以(yi)其外部(bu)(bu)時(shi)鐘(zhong)通常是(shi)(shi)(shi)指(zhi)外部(bu)(bu)需要(yao)一個(ge)完(wan)整的(de)(de)(de)(de)(de)振(zhen)(zhen)蕩(dang)器(qi)(qi)，即無源(yuan)晶(jing)(jing)振(zhen)(zhen)+振(zhen)(zhen)蕩(dang)電路(lu)(lu)或有(you)源(yuan)晶(jing)(jing)振(zhen)(zhen) 有(you)些處(chu)(chu)(chu)理(li)(li)(li)器(qi)(qi)內(nei)(nei)(nei)部(bu)(bu)會自帶振(zhen)(zhen)蕩(dang)電路(lu)(lu)，例如RC振(zhen)(zhen)蕩(dang)電路(lu)(lu)，其內(nei)(nei)(nei)部(bu)(bu)時(shi)鐘(zhong)就是(shi)(shi)(shi)這(zhe)(zhe)一類(lei)振(zhen)(zhen)蕩(dang)器(qi)(qi)所(suo)(suo)產生的(de)(de)(de)(de)(de)時(shi)鐘(zhong)信(xin)號，注意(yi)：在(zai)精(jing)度(du)方面，RC振(zhen)(zhen)蕩(dang)器(qi)(qi)要(yao)遠低于(yu)晶(jing)(jing)振(zhen)(zhen)，且(qie)容易受到溫(wen)度(du)的(de)(de)(de)(de)(de)影響。有(you)些處(chu)(chu)(chu)理(li)(li)(li)器(qi)(qi)內(nei)(nei)(nei)部(bu)(bu)有(you)振(zhen)(zhen)蕩(dang)電路(lu)(lu)，外部(bu)(bu)再搭(da)配無源(yuan)晶(jing)(jing)振(zhen)(zhen)，這(zhe)(zhe)個(ge)有(you)點像(xiang)外部(bu)(bu)時(shi)鐘(zhong)，這(zhe)(zhe)是(shi)(shi)(shi)由(you)于(yu)不同的(de)(de)(de)(de)(de)處(chu)(chu)(chu)理(li)(li)(li)器(qi)(qi)設計思路(lu)(lu)的(de)(de)(de)(de)(de)差異(yi)，因(yin)此需要(yao)參(can)考相應的(de)(de)(de)(de)(de)Datasheet。機(ji)械聲表諧振(zhen)(zhen)器(qi)(qi)批發(fa)廠家

本文來自(zi)貴州(zhou)鑫諾威環保設備(bei)有限公司：//fsstkd.cn/Article/56d4699897.html