What are the motional and shunt capacitances of a crystal unit?
The shunt capacitance (C0) is the capacitance resulting from the presence of the electrodes on the quartz plate plus the capacitance inherent in the crystal holder. The motional capacitance is a parameter of the equivalent circuit. It is used as a means of describing the elasticity or “stiffness” of the quartz resonator. Please see the Technical Note on the Equivalent Circuit for a more complete explanation. 24.
