›› 2014, Vol. 27 ›› Issue (5): 29-.

• Articles • Previous Articles     Next Articles

Deign of a High-performance Crystal Oscillator

BAO Yuwen,XU Yao   

  1. (Institute of Materials Science,Hubei University,Wuhan 430062,China)
  • Online:2014-05-15 Published:2014-05-14


A Pierce crystal oscillator for RTC is presented.Amplitude regulation scheme is used to improve the stability of the output frequency and amplitude and to lower power consumption.The design increases the output frequency calibration circuit to improve the accuracy of the output frequency.Working principles are analyzed,and a practical circuit is implemented using CSMC 0.5 μm-5 V CMOS process.The simulation results are presented.

Key words: crystal oscillator;amplitude regulation;clock chip;frequency calibration

CLC Number: 

  • TN492