一种超小型抗振恒温晶振的研制  

Development of a Miniature Anti-Vibration OCXO

作　　者：王旭 WANG Xu(Chengdu Spaceon Electronics Co.,Ltd.,Chengdu 611731,China)

机构地区：[1]成都天奥电子股份有限公司,四川成都611731

出　　处：《压电与声光》2018年第3期316-318,322,共4页Piezoelectrics & Acoustooptics

摘　　要：晶体振荡器是振动敏感器件,通常在振动条件下晶振的相位噪声会恶化。该文分析了抗振恒温晶振(OCXO)的设计方法及影响因素,阐述了振动对晶振相位噪声的影响,并采用微型减振器及低加速度灵敏度晶体谐振器设计了100 MHz超小型抗振恒温晶振。该文研制的100 MHz超小型抗振恒温晶振体积仅为25.4 mm×25.4mm×15mm,振动条件下相噪指标最优达到-147dBc/Hz@1kHz,达到了预期的研制目标。It is well known that the crystal oscillator is a vibration-sensitive device; the phase noise of it is usually degraded under the vibration conditions. The design method and influencing factors of the anti-vibration oven controlled crystal oscillator （OCXO） are analyzed, and the effect of vibration on the phase noise of OXCO is presented. A 100 MHz ultra-compact, anti-vibration OXCO is designed with the micro vibration damper and low g-sensitivity crystal resonator. The size of the developed OCXO is only 25.4 mm×25.4 mm×15 mm, the optimal phase noise is up to -147 dBc/Hz@1 kHz offset under the random vibration condition. The expected development goal is achieved.

关 键 词：石英晶体 抗振 小体积 恒温晶振(OCXO) 低加速度灵敏度 

分 类 号：TN752[电子电信—电路与系统]