壓控振蕩器性能指標

1.中(zhong)(zhong)心(xin)頻(pin)率(lv)是(shi)指頻(pin)率(lv)調節范圍的(de)(de)中(zhong)(zhong)間值，即振(zhen)(zhen)蕩器頻(pin)率(lv)的(de)(de)大值和(he)(he)小值的(de)(de)中(zhong)(zhong)間值，中(zhong)(zhong)心(xin)頻(pin)率(lv)的(de)(de)大小取決于振(zhen)(zhen)蕩器的(de)(de)結構和(he)(he)元器件(jian)參(can)數，七專(zhuan)級電壓調振(zhen)(zhen)蕩器廠家，而且還隨(sui)著工藝和(he)(he)溫(wen)度相應改變(bian);隨(sui)著科學(xue)技術的(de)(de)不斷發展和(he)(he)產品性能的(de)(de)調高(gao)，現如今CMOS壓控振(zhen)(zhen)蕩器的(de)(de)中(zhong)(zhong)心(xin)頻(pin)率(lv)能夠(gou)達到10GHz。

2.調(diao)諧(xie)(xie)范(fan)(fan)圍是指調(diao)節輸出頻(pin)率(lv)的(de)(de)變化范(fan)(fan)圍，即振(zhen)蕩(dang)(dang)器(qi)的(de)(de)大調(diao)諧(xie)(xie)頻(pin)率(lv)和小調(diao)諧(xie)(xie)頻(pin)率(lv)的(de)(de)差值壓控振(zhen)蕩(dang)(dang)器(qi)要有足(zu)夠大的(de)(de)調(diao)諧(xie)(xie)范(fan)(fan)圍才能滿足(zu)輸出頻(pin)率(lv)達到(dao)所需要的(de)(de)值。

發射壓控振蕩的作用

壓(ya)控振蕩器(qi)(VCO)與普通(tong)本振相比，在諧振回路中多出了電控器(qi)件，比如變(bian)容二極管；一般壓(ya)控振蕩器(qi)(VCO)多以克拉潑振蕩器(qi)形式存在，以保(bao)證(zheng)電路工作點和(he)Q值的(de)穩定性。

振(zhen)(zhen)蕩(dang)(dang)(dang)器(qi)自其(qi)誕生以來就(jiu)一直在(zai)通信、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)子、航(hang)(hang)海(hai)航(hang)(hang)空航(hang)(hang)天及醫學等(deng)領域扮演(yan)重(zhong)要(yao)的(de)(de)(de)(de)角色，具有廣泛的(de)(de)(de)(de)用(yong)途。在(zai)無線(xian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)技術(shu)(shu)發展的(de)(de)(de)(de)初期，它(ta)就(jiu)在(zai)發射機(ji)中(zhong)用(yong)來產(chan)生高頻(pin)載波電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓，在(zai)超外差接(jie)收(shou)(shou)機(ji)中(zhong)用(yong)作本機(ji)振(zhen)(zhen)蕩(dang)(dang)(dang)器(qi)，七專級(ji)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓調(diao)振(zhen)(zhen)蕩(dang)(dang)(dang)器(qi)廠家(jia)(jia)，成為發射和(he)接(jie)收(shou)(shou)設(she)備的(de)(de)(de)(de)基(ji)本部件。隨著電(dian)(dian)(dian)(dian)(dian)(dian)(dian)子技術(shu)(shu)的(de)(de)(de)(de)迅速發展，振(zhen)(zhen)蕩(dang)(dang)(dang)器(qi)的(de)(de)(de)(de)用(yong)途也越來越廣泛，例如在(zai)無線(xian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)測量儀器(qi)中(zhong)，七專級(ji)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓調(diao)振(zhen)(zhen)蕩(dang)(dang)(dang)器(qi)廠家(jia)(jia)，它(ta)產(chan)生各(ge)種頻(pin)段(duan)的(de)(de)(de)(de)正弦信號電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓：在(zai)熱加(jia)工(gong)、熱處理、超聲波加(jia)工(gong)中(zhong)，它(ta)產(chan)生大功率(lv)的(de)(de)(de)(de)高頻(pin)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)能對(dui)負載加(jia)熱；某(mou)些電(dian)(dian)(dian)(dian)(dian)(dian)(dian)氣設(she)備用(yong)振(zhen)(zhen)蕩(dang)(dang)(dang)器(qi)做成的(de)(de)(de)(de)無觸(chu)點開關進行控制；電(dian)(dian)(dian)(dian)(dian)(dian)(dian)子鐘(zhong)和(he)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)子手表中(zhong)采用(yong)頻(pin)率(lv)穩定度很高的(de)(de)(de)(de)振(zhen)(zhen)蕩(dang)(dang)(dang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)作為定時(shi)部件等(deng)。尤其(qi)在(zai)通信系統電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)中(zhong)，壓控振(zhen)(zhen)蕩(dang)(dang)(dang)器(qi)(VCO)是其(qi)關鍵(jian)部件，特別是在(zai)鎖相環(huan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)、時(shi)鐘(zhong)恢復電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)和(he)頻(pin)率(lv)綜(zong)合(he)器(qi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)等(deng)更是重(zhong)中(zhong)之重(zhong)，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓調(diao)振(zhen)(zhen)蕩(dang)(dang)(dang)器(qi)廠家(jia)(jia)，可(ke)以毫不夸(kua)張地說在(zai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)子通信技術(shu)(shu)領域，VCO幾(ji)乎(hu)與電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流源和(he)運放具有同等(deng)重(zhong)要(yao)地位。

壓控振蕩器簡介

壓(ya)控振(zhen)蕩(dang)器(qi)（VCO）是許多可調(diao)通信、無線電、雷達、傳感和(he)測(ce)(ce)量系統的關鍵(jian)元件。VCO本質(zhi)上(shang)是由輸入電壓(ya)（通常為模擬電壓(ya)）控制的振(zhen)蕩(dang)器(qi)。因此，在(zai)整個可調(diao)范(fan)圍內調(diao)節調(diao)諧電壓(ya)可以成(cheng)比例(li)地(di)改變(bian)VCO的輸出(chu)射頻信號。 VCO是鎖相(xiang)環(huan)路、函數發生器(qi)、頻率合成(cheng)器(qi)、雷達、本地(di)振(zhen)蕩(dang)器(qi)（LO）中(zhong)的關鍵(jian)元件，同(tong)時也是頻率可調(diao)頻率發生器(qi)測(ce)(ce)試和(he)測(ce)(ce)量設備中(zhong)的關鍵(jian)元件。