恒(heng)(heng)(heng)温(wen)(wen)振(zhen)荡(dang)(dang)(dang)器(qi)，或(huo)称为恒(heng)(heng)(heng)温(wen)(wen)晶(jing)体(ti)振(zhen)荡(dang)(dang)(dang)器(qi)（Oven-ControlledCrystalOscillator），是(shi)一种高(gao)精(jing)度(du)(du)的频(pin)(pin)(pin)(pin)(pin)率(lv)(lv)(lv)控(kong)制设(she)备，广(guang)泛应用于需(xu)要极高(gao)频(pin)(pin)(pin)(pin)(pin)率(lv)(lv)(lv)稳(wen)(wen)定(ding)性(xing)(xing)的领域(yu)。它的原理是(shi)通(tong)(tong)过(guo)恒(heng)(heng)(heng)温(wen)(wen)炉来维持石英晶(jing)体(ti)的恒(heng)(heng)(heng)定(ding)温(wen)(wen)度(du)(du)，从而抵(di)消温(wen)(wen)度(du)(du)变化(hua)对振(zhen)荡(dang)(dang)(dang)频(pin)(pin)(pin)(pin)(pin)率(lv)(lv)(lv)的影响。恒(heng)(heng)(heng)温(wen)(wen)振(zhen)荡(dang)(dang)(dang)器(qi)的关键特(te)点之(zhi)一是(shi)其(qi)(qi)出色的频(pin)(pin)(pin)(pin)(pin)率(lv)(lv)(lv)稳(wen)(wen)定(ding)性(xing)(xing)，通(tong)(tong)常(chang)在0.01至0.1ppb的范(fan)围内。这(zhei)使得(de)恒(heng)(heng)(heng)温(wen)(wen)振(zhen)荡(dang)(dang)(dang)器(qi)成为诸如全球定(ding)位系统（GPS）、卫星通(tong)(tong)信(xin)(xin)、科学实验(yan)和(he)(he)无线(xian)通(tong)(tong)信(xin)(xin)等领域(yu)的不可或(huo)缺的部件。其(qi)(qi)应用领域(yu)也包括精(jing)密测(ce)量设(she)备、天文学和(he)(he)无线(xian)电通(tong)(tong)信(xin)(xin)系统。恒(heng)(heng)(heng)温(wen)(wen)振(zhen)荡(dang)(dang)(dang)器(qi)通(tong)(tong)常(chang)需(xu)要一段时(shi)间(jian)来启动(dong)和(he)(he)稳(wen)(wen)定(ding)其(qi)(qi)输出频(pin)(pin)(pin)(pin)(pin)率(lv)(lv)(lv)，这(zhei)称为预热时(shi)间(jian)。此特(te)性(xing)(xing)使得(de)它在需(xu)要长(zhang)期稳(wen)(wen)定(ding)性(xing)(xing)的应用中(zhong)更(geng)具优势(shi)，例如卫星导(dao)航(hang)系统，因为它们(men)需(xu)要连(lian)续的高(gao)精(jing)度(du)(du)时(shi)钟信(xin)(xin)号(hao)。虽然恒(heng)(heng)(heng)温(wen)(wen)振(zhen)荡(dang)(dang)(dang)器(qi)在性(xing)(xing)能(neng)上表现出色，但它通(tong)(tong)常(chang)较(jiao)大且能(neng)耗较(jiao)高(gao)，因此在一些(xie)应用中(zhong)可能(neng)不太适用。然而，随(sui)着技术的不断发展，出现了小型、低(di)功耗的恒(heng)(heng)(heng)温(wen)(wen)振(zhen)荡(dang)(dang)(dang)器(qi)，适合(he)更(geng)广(guang)泛的应用。这(zhei)些(xie)特(te)性(xing)(xing)使恒(heng)(heng)(heng)温(wen)(wen)振(zhen)荡(dang)(dang)(dang)器(qi)成为现代高(gao)精(jing)度(du)(du)时(shi)间(jian)和(he)(he)频(pin)(pin)(pin)(pin)(pin)率(lv)(lv)(lv)控(kong)制的关键组件，促进了各种科学、通(tong)(tong)信(xin)(xin)和(he)(he)导(dao)航(hang)技术的发展。贴片振(zhen)荡(dang)(dang)(dang)器(qi)价格(ge)好，欢迎(ying)联系成都晶(jing)宝！工业振(zhen)荡(dang)(dang)(dang)器(qi)型号(hao)

4、相(xiang)(xiang)位(wei)(wei)噪(zao)(zao)声(sheng)和调制：一切振(zhen)荡(dang)(dang)器(qi)都有(you)一些振(zhen)幅调制噪(zao)(zao)声(sheng)和相(xiang)(xiang)位(wei)(wei)调制噪(zao)(zao)声(sheng)。VCXO的(de)相(xiang)(xiang)位(wei)(wei)噪(zao)(zao)声(sheng)要受振(zhen)荡(dang)(dang)器(qi)电路结构和石英晶体的(de)影响。VCXO电源的(de)瞬(shun)态过程或波纹产生(sheng)的(de)调制还会使(shi)它(ta)的(de)相(xiang)(xiang)位(wei)(wei)噪(zao)(zao)声(sheng)性(xing)(xing)能恶(e)化。相(xiang)(xiang)位(wei)(wei)噪(zao)(zao)声(sheng)是根据频(pin)率(lv)(lv)相(xiang)(xiang)对(dui)于中心频(pin)率(lv)(lv)的(de)偏移量来界定的(de)，用单位(wei)(wei)dBc/Hz表示。锁相(xiang)(xiang)环电路使(shi)用的(de)大(da)多数(shu)(shu)VCXO器(qi)件必须具有(you)良(liang)(liang)好(hao)的(de)相(xiang)(xiang)位(wei)(wei)噪(zao)(zao)声(sheng)特性(xing)(xing)。如果应用上(shang)对(dui)相(xiang)(xiang)应噪(zao)(zao)声(sheng)有(you)严格要求，选(xuan)用VCXO时就(jiu)一定要规(gui)(gui)定相(xiang)(xiang)位(wei)(wei)噪(zao)(zao)声(sheng)允许的(de)范(fan)围。5、线(xian)性(xing)(xing)度(du)：VCXO振(zhen)荡(dang)(dang)频(pin)率(lv)(lv)随控制电压变化的(de)函(han)数(shu)(shu)关系是非线(xian)性(xing)(xing)的(de)。设(she)计优(you)良(liang)(liang)的(de)VCXO，其频(pin)率(lv)(lv)与(yu)控制电压的(de)函(han)数(shu)(shu)曲线(xian)接近直线(xian)，偏离直线(xian)的(de)范(fan)围控制在10％以内。一般(ban)来说，VCXO的(de)牵引度(du)越(yue)(yue)大(da)，它(ta)的(de)线(xian)性(xing)(xing)度(du)就(jiu)越(yue)(yue)差。浙江SPXO振(zhen)荡(dang)(dang)器(qi)频(pin)差车规(gui)(gui)振(zhen)荡(dang)(dang)器(qi)交(jiao)期哪家快，成都晶宝值得信赖！

恒(heng)(heng)温(wen)(wen)(wen)(wen)(wen)振(zhen)荡(dang)(dang)(dang)器(qi)（Oven-ControlledCrystalOscillator），即恒(heng)(heng)温(wen)(wen)(wen)(wen)(wen)晶(jing)体(ti)(ti)振(zhen)荡(dang)(dang)(dang)器(qi)，是一(yi)种(zhong)高(gao)精(jing)度(du)(du)的(de)(de)频(pin)率控制设(she)备(bei)，用(yong)(yong)于各种(zhong)领域，尤其(qi)(qi)是需要极(ji)(ji)高(gao)频(pin)率稳定性(xing)的(de)(de)应用(yong)(yong)。其(qi)(qi)工(gong)作原理是利用(yong)(yong)一(yi)个(ge)加(jia)热炉（oven）来(lai)将晶(jing)体(ti)(ti)振(zhen)荡(dang)(dang)(dang)器(qi)的(de)(de)温(wen)(wen)(wen)(wen)(wen)度(du)(du)恒(heng)(heng)定在(zai)一(yi)个(ge)非(fei)常(chang)稳定的(de)(de)范围内(nei)，通(tong)(tong)常(chang)在(zai)50℃至70℃之间。恒(heng)(heng)温(wen)(wen)(wen)(wen)(wen)振(zhen)荡(dang)(dang)(dang)器(qi)之所以(yi)如此(ci)重(zhong)(zhong)要，是因(yin)为它可(ke)以(yi)提供(gong)非(fei)常(chang)精(jing)确的(de)(de)振(zhen)荡(dang)(dang)(dang)频(pin)率，通(tong)(tong)常(chang)在(zai)0.01至0.1ppb的(de)(de)范围内(nei)，这对于需要高(gao)精(jing)度(du)(du)时钟(zhong)和(he)同(tong)步信号(hao)的(de)(de)系统至关(guan)重(zhong)(zhong)要。这些系统包括卫星通(tong)(tong)信、GPS接收器(qi)、无线电(dian)天文学、粒子(zi)加(jia)速(su)器(qi)和(he)原子(zi)钟(zhong)等。恒(heng)(heng)温(wen)(wen)(wen)(wen)(wen)振(zhen)荡(dang)(dang)(dang)器(qi)的(de)(de)设(she)计非(fei)常(chang)复杂，通(tong)(tong)常(chang)包括温(wen)(wen)(wen)(wen)(wen)度(du)(du)传感(gan)器(qi)、PID控制回(hui)路和(he)晶(jing)体(ti)(ti)振(zhen)荡(dang)(dang)(dang)器(qi)。通(tong)(tong)过(guo)控制炉内(nei)的(de)(de)温(wen)(wen)(wen)(wen)(wen)度(du)(du)，恒(heng)(heng)温(wen)(wen)(wen)(wen)(wen)振(zhen)荡(dang)(dang)(dang)器(qi)可(ke)以(yi)抵消(xiao)晶(jing)体(ti)(ti)的(de)(de)温(wen)(wen)(wen)(wen)(wen)度(du)(du)漂移(yi)，从而提供(gong)良好的(de)(de)频(pin)率稳定性(xing)。虽然恒(heng)(heng)温(wen)(wen)(wen)(wen)(wen)振(zhen)荡(dang)(dang)(dang)器(qi)在(zai)性(xing)能(neng)上表现出色，但(dan)由于其(qi)(qi)制造和(he)维护成(cheng)本相(xiang)对较高(gao)，因(yin)此(ci)通(tong)(tong)常(chang)在(zai)对频(pin)率稳定性(xing)有极(ji)(ji)高(gao)要求的(de)(de)应用(yong)(yong)中使(shi)用(yong)(yong)。随着技术的(de)(de)不断(duan)发展，恒(heng)(heng)温(wen)(wen)(wen)(wen)(wen)振(zhen)荡(dang)(dang)(dang)器(qi)的(de)(de)性(xing)能(neng)可(ke)能(neng)会(hui)不断(duan)提高(gao)，为更(geng)多(duo)领域提供(gong)更(geng)高(gao)的(de)(de)精(jing)度(du)(du)和(he)可(ke)靠性(xing)。它在(zai)现代通(tong)(tong)信、导(dao)航、科学研究等领域中扮演着关(guan)键(jian)的(de)(de)角色，确保了各种(zhong)关(guan)键(jian)应用(yong)(yong)的(de)(de)成(cheng)功运(yun)行。

压(ya)(ya)(ya)(ya)(ya)控(kong)(kong)晶(jing)(jing)体(ti)振(zhen)(zhen)荡器(qi)VCXO电(dian)(dian)(dian)参数的(de)(de)(de)(de)(de)(de)(de)特点(dian)及选(xuan)用(yong)时(shi)的(de)(de)(de)(de)(de)(de)(de)注意(yi)事项：1、要(yao)弄(nong)清楚(chu)具体(ti)应用(yong)场合是需要(yao)压(ya)(ya)(ya)(ya)(ya)控(kong)(kong)晶(jing)(jing)体(ti)振(zhen)(zhen)荡器(qi)VCXO，还(hai)是一(yi)般(ban)的(de)(de)(de)(de)(de)(de)(de)振(zhen)(zhen)荡器(qi)。当(dang)(dang)设计(ji)人员希望通过外加(jia)控(kong)(kong)制(zhi)电(dian)(dian)(dian)压(ya)(ya)(ya)(ya)(ya)来(lai)对振(zhen)(zhen)荡器(qi)的(de)(de)(de)(de)(de)(de)(de)频(pin)(pin)率作(zuo)小(xiao)范(fan)围的(de)(de)(de)(de)(de)(de)(de)调(diao)(diao)谐时(shi)，就应选(xuan)用(yong)VCXO器(qi)件(jian)(jian)。2、频(pin)(pin)率稳(wen)(wen)定(ding)度(du)要(yao)求：VCXO振(zhen)(zhen)荡频(pin)(pin)率在(zai)(zai)工作(zuo)温(wen)度(du)内是稳(wen)(wen)定(ding)的(de)(de)(de)(de)(de)(de)(de)。当(dang)(dang)我们对VCXO进行(xing)调(diao)(diao)谐时(shi)，振(zhen)(zhen)荡频(pin)(pin)率会(hui)发生(sheng)改变(bian)；但偏离(li)标称频(pin)(pin)率的(de)(de)(de)(de)(de)(de)(de)各(ge)个频(pin)(pin)率值在(zai)(zai)工作(zuo)温(wen)度(du)范(fan)围内同(tong)样是稳(wen)(wen)定(ding)的(de)(de)(de)(de)(de)(de)(de)。但是对于一(yi)个给定(ding)的(de)(de)(de)(de)(de)(de)(de)频(pin)(pin)率而(er)言(yan)，频(pin)(pin)率稳(wen)(wen)定(ding)度(du)要(yao)求越高，要(yao)得到(dao)大范(fan)围的(de)(de)(de)(de)(de)(de)(de)牵引度(du)就越困(kun)难。采用(yong)全硅MEMS不能(neng)获得良好的(de)(de)(de)(de)(de)(de)(de)频(pin)(pin)率稳(wen)(wen)定(ding)度(du)。这是因为硅存在(zai)(zai)颤(zhan)动噪(zao)声和相(xiang)位(wei)(wei)噪(zao)声所致。VCXO采用(yong)了石英晶(jing)(jing)体(ti)，频(pin)(pin)率异常稳(wen)(wen)定(ding)，是目前很好的(de)(de)(de)(de)(de)(de)(de)频(pin)(pin)率控(kong)(kong)制(zhi)器(qi)件(jian)(jian)。3、电(dian)(dian)(dian)压(ya)(ya)(ya)(ya)(ya)调(diao)(diao)谐与频(pin)(pin)率变(bian)化(hua)的(de)(de)(de)(de)(de)(de)(de)关(guan)系(xi)：VCXO的(de)(de)(de)(de)(de)(de)(de)频(pin)(pin)率偏移(yi)值同(tong)加(jia)在(zai)(zai)其调(diao)(diao)谐电(dian)(dian)(dian)路上(shang)的(de)(de)(de)(de)(de)(de)(de)控(kong)(kong)制(zhi)电(dian)(dian)(dian)压(ya)(ya)(ya)(ya)(ya)的(de)(de)(de)(de)(de)(de)(de)大小(xiao)有关(guan)。VCXO标称频(pin)(pin)率对应的(de)(de)(de)(de)(de)(de)(de)调(diao)(diao)谐电(dian)(dian)(dian)压(ya)(ya)(ya)(ya)(ya)规定(ding)为VCC（电(dian)(dian)(dian)源电(dian)(dian)(dian)压(ya)(ya)(ya)(ya)(ya)）的(de)(de)(de)(de)(de)(de)(de)一(yi)半。VCC为5V的(de)(de)(de)(de)(de)(de)(de)VCXO，控(kong)(kong)制(zhi)电(dian)(dian)(dian)压(ya)(ya)(ya)(ya)(ya)为2.5V时(shi)就产生(sheng)中心(xin)频(pin)(pin)率。控(kong)(kong)制(zhi)电(dian)(dian)(dian)压(ya)(ya)(ya)(ya)(ya)为（0.5～4.5）V的(de)(de)(de)(de)(de)(de)(de)VCXO，其频(pin)(pin)率变(bian)化(hua)曲线的(de)(de)(de)(de)(de)(de)(de)斜率为正。也就是说，当(dang)(dang)控(kong)(kong)制(zhi)电(dian)(dian)(dian)压(ya)(ya)(ya)(ya)(ya)从2.5V上(shang)升为4.5V时(shi)，振(zhen)(zhen)荡器(qi)的(de)(de)(de)(de)(de)(de)(de)频(pin)(pin)率将增大；当(dang)(dang)控(kong)(kong)制(zhi)电(dian)(dian)(dian)压(ya)(ya)(ya)(ya)(ya)从2.5V降(jiang)为0.5V时(shi)，振(zhen)(zhen)荡器(qi)的(de)(de)(de)(de)(de)(de)(de)频(pin)(pin)率将减小(xiao)。合理价位(wei)(wei)，品质保(bao)障(zhang)，服务到(dao)位(wei)(wei)，成都晶(jing)(jing)宝您的(de)(de)(de)(de)(de)(de)(de)明智(zhi)之(zhi)选(xuan)！

压(ya)(ya)控(kong)(kong)(kong)(kong)振(zhen)(zhen)(zhen)荡(dang)(dang)器(qi)(qi)主(zhu)要(yao)应用(yong)在需要(yao)小(xiao)范(fan)围(wei)(wei)调整(zheng)频(pin)(pin)率(lv)、频(pin)(pin)率(lv)精(jing)度(du)要(yao)求(qiu)高、电(dian)(dian)(dian)(dian)压(ya)(ya)不(bu)同／干扰较(jiao)大等(deng)场景中，蜂(feng)窝基站、移频(pin)(pin)直放站、测试设备等(deng)是(shi)(shi)压(ya)(ya)控(kong)(kong)(kong)(kong)振(zhen)(zhen)(zhen)荡(dang)(dang)器(qi)(qi)的(de)主(zhu)要(yao)下游(you)市场。压(ya)(ya)控(kong)(kong)(kong)(kong)晶(jing)体(ti)(ti)振(zhen)(zhen)(zhen)荡(dang)(dang)器(qi)(qi)，简称压(ya)(ya)控(kong)(kong)(kong)(kong)晶(jing)振(zhen)(zhen)(zhen)，英文简称VCXO。VCXO是(shi)(shi)通过施加(jia)外部控(kong)(kong)(kong)(kong)制(zhi)(zhi)电(dian)(dian)(dian)(dian)压(ya)(ya)使振(zhen)(zhen)(zhen)荡(dang)(dang)频(pin)(pin)率(lv)可(ke)(ke)变(bian)或是(shi)(shi)可(ke)(ke)以调制(zhi)(zhi)的(de)石英晶(jing)体(ti)(ti)振(zhen)(zhen)(zhen)荡(dang)(dang)器(qi)(qi)，是(shi)(shi)一种有源晶(jing)振(zhen)(zhen)(zhen)。通过控(kong)(kong)(kong)(kong)制(zhi)(zhi)电(dian)(dian)(dian)(dian)压(ya)(ya)改变(bian)变(bian)容二极管电(dian)(dian)(dian)(dian)容量，可(ke)(ke)以调制(zhi)(zhi)VCXO的(de)震荡(dang)(dang)频(pin)(pin)率(lv)，因此VCXO的(de)频(pin)(pin)率(lv)范(fan)围(wei)(wei)较(jiao)宽，且具(ju)有电(dian)(dian)(dian)(dian)流损(sun)耗(hao)低、频(pin)(pin)率(lv)稳定度(du)好等(deng)优点。采(cai)用(yong)倍频(pin)(pin)方案，VCXO可(ke)(ke)实现高频(pin)(pin)率(lv)输(shu)(shu)出(chu)；将VCXO输(shu)(shu)出(chu)信号与(yu)其(qi)他(ta)晶(jing)体(ti)(ti)振(zhen)(zhen)(zhen)荡(dang)(dang)器(qi)(qi)输(shu)(shu)出(chu)信号混(hun)频(pin)(pin)，其(qi)信号调谐范(fan)围(wei)(wei)可(ke)(ke)明显增大；VCXO作为晶(jing)体(ti)(ti)振(zhen)(zhen)(zhen)荡(dang)(dang)器(qi)(qi)的(de)一种，其(qi)频(pin)(pin)率(lv)会随(sui)着(zhe)温(wen)度(du)变(bian)化(hua)而(er)发生(sheng)改变(bian)，采(cai)用(yong)温(wen)度(du)补偿(chang)法可(ke)(ke)以降低环境温(wen)度(du)对(dui)VCXO振(zhen)(zhen)(zhen)荡(dang)(dang)频(pin)(pin)率(lv)的(de)影响(xiang)，即温(wen)度(du)补偿(chang)压(ya)(ya)控(kong)(kong)(kong)(kong)晶(jing)体(ti)(ti)振(zhen)(zhen)(zhen)荡(dang)(dang)器(qi)(qi)（TCVCXO）品质振(zhen)(zhen)(zhen)荡(dang)(dang)器(qi)(qi)，实惠(hui)价格，准时交货(huo)，成都晶(jing)宝值得信赖(lai)！四川(chuan)车规振(zhen)(zhen)(zhen)荡(dang)(dang)器(qi)(qi)厂家

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VCXO主要应用(yong)在需要小范围调(diao)(diao)整频率(lv)(lv)(lv)(lv)(lv)、频率(lv)(lv)(lv)(lv)(lv)精(jing)度(du)(du)要求(qiu)高、电压(ya)不(bu)同(tong)／干扰较大(da)等(deng)场景中，蜂窝基站(zhan)、移频直放站(zhan)、测试设(she)备等(deng)是(shi)(shi)VCXO的(de)主要下游市场。压(ya)控(kong)(kong)晶(jing)体(ti)振荡器，简称压(ya)控(kong)(kong)晶(jing)振，英(ying)文简称VCXO。VCXO是(shi)(shi)通过(guo)施加外(wai)部(bu)控(kong)(kong)制(zhi)电压(ya)使振荡频率(lv)(lv)(lv)(lv)(lv)可变或(huo)是(shi)(shi)可以调(diao)(diao)制(zhi)的(de)石英(ying)晶(jing)体(ti)振荡器，是(shi)(shi)一种有源晶(jing)振。通过(guo)控(kong)(kong)制(zhi)电压(ya)改(gai)变变容二(er)极管(guan)电容量，可以调(diao)(diao)制(zhi)VCXO的(de)震荡频率(lv)(lv)(lv)(lv)(lv)，因此VCXO的(de)频率(lv)(lv)(lv)(lv)(lv)范围较宽，且具有电流损耗低、频率(lv)(lv)(lv)(lv)(lv)稳定(ding)度(du)(du)好等(deng)优(you)点。采(cai)用(yong)倍频方案，VCXO可实现高频率(lv)(lv)(lv)(lv)(lv)输(shu)出；将VCXO输(shu)出信号(hao)(hao)与(yu)其(qi)(qi)他晶(jing)体(ti)振荡器输(shu)出信号(hao)(hao)混频，其(qi)(qi)信号(hao)(hao)调(diao)(diao)谐(xie)范围可明显增大(da)；VCXO作为晶(jing)体(ti)振荡器的(de)一种，其(qi)(qi)频率(lv)(lv)(lv)(lv)(lv)会随(sui)着(zhe)温度(du)(du)变化而发生(sheng)改(gai)变，采(cai)用(yong)温度(du)(du)补(bu)偿法可以降(jiang)低环(huan)境(jing)温度(du)(du)对VCXO振荡频率(lv)(lv)(lv)(lv)(lv)的(de)影(ying)响，即温度(du)(du)补(bu)偿压(ya)控(kong)(kong)晶(jing)体(ti)振荡器（TCVCXO）。工业振荡器型(xing)号(hao)(hao)

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