Oscillator, electronic device and moving object

摘要

An oscillator includes an oscillation element; an oscillation circuit which causes the oscillation element to oscillate; a heat generation element which heats the oscillation element; a temperature control circuit which controls the heat generation element; and a temperature correction circuit which corrects frequency-temperature characteristics of an output signal of the oscillation circuit.

主权项

1. An oscillator comprising:
an oscillation element; an oscillation circuit which causes the oscillation element to oscillate; a heat generation element which heats the oscillation element; a temperature control circuit which controls the heat generation element; and a temperature correction circuit which generates a temperature correction voltage for correcting frequency-temperature characteristics of an output signal of the oscillation circuit, the temperature correction circuit comprising:
a primary correction circuit which corrects a primary component of the frequency-temperature characteristics of the output signal of the oscillation circuit, the primary correction circuit generating a primary correction voltage, anda secondary correction circuit which corrects a secondary component of the frequency-temperature characteristics of the output signal of the oscillation circuit, the secondary correction circuit generating a secondary correction voltage,the temperature correction voltage being a sum of the primary correction voltage and the secondary correction voltage.