Piezoelectric oscillator

A piezoelectric oscillator including a piezoelectric vibrator, a first oscillation circuit, and a second oscillation circuit, characterized in that:

• said first oscillation circuit is a Colpitts oscillation circuit including a configuration such that a first capacitor is connected between a base and an emitter of a first transistor, and a configuration such that a second capacitor is connected between said emitter and a ground;
• said second oscillation circuit is a Colpitts oscillation circuit including a configuration such that a third capacitor is connected between a second tar a base and an emitter of a second transistor, and a configuration such that a fourth capacitor is connected between said emitter and a ground;
• there is included a configuration such that one end side of said piezoelectric vibrator is connected to the base of said first transistor and the other end of the piezoelectric vibrator is connected to the base of said first transistor;
• and in order to obtain oscillation outputs that are 180 degrees out of phase to each other from outputs of said first and second oscillation circuits, both of a transistor terminal, which is an output terminal of said first oscillation circuit, and a transistor terminal, which is an output terminal of said second oscillation circuit, are the same location.