并不是四脚就肯定好
一般是这样分类：
XO = Clock (Crystal) Oscillator
EPO = Ecliptek Programmable Oscillator
EPS = Ecliptek Programmable Spread Spectrum Oscillator
VCXO = Voltage Controlled Crystal Oscillator
TCXO = Temperature Compensated Crystal Oscillator
TCVCXO = Temperature Compensated Voltage Controlled Crystal Oscillator
OCXO = Oven Controlled Crystal Oscillator
不知你买的是哪种
Full Size Package
Pin 1: No Connect or Tri-State Pin 8: Output
Pin 7: Case Ground Pin 14: Supply Voltage
Half Size Package
Pin 1: No Connect or Tri-State Pin 5: Output
Pin 4: Case Ground Pin 8: Supply Voltage
电压还要分5V or 3.3V搞错不行的。
