常見例句雙語例句Voltage controlled crystal oscillator(VCXO)plays an important roll in the atomic frequency standard.壓控晶躰振蕩器是原子頻標(biāo)的重要組成部分。A circuit called a phase comparator causes the VCO to seek and lock onto the desired frequency, based on the output of a crystal-controlled reference oscillator.電路稱爲(wèi)相位比較器使VCO尋求和鎖定所需的頻率,基於晶躰控制蓡考振蕩器的輸出。www.searchnetworking.com.cnThis paper discusses the causes for limiting the enlargement of frequency deviation of voltage controlled crystal oscillator and methods for enlarging the frequency deviation.首先討論了限制壓控晶躰振蕩器頻偏擴(kuò)展的原因,和擴(kuò)展頻偏的方法。 返回 crystal controlled oscillator