Piezoelectric oscillator and electronic device

摘要

A piezoelectric oscillator and an electronic device are provided that can stabilize start characteristics by reducing power noise during a power supply process and which can improve oscillation stability. Included are an oscillation stage so as to generate oscillation pulses by exciting a piezoelectric resonator, an output stage to amplify and then output oscillation pulses, and a start delaying circuit so as to start the output stage later than the oscillation stage only by a selected delay time from a plurality of delay times.