OSCILLATION CIRCUIT, OSCILLATOR, ELECTRONIC APPARATUS, AND MOBILE

摘要

PROBLEM TO BE SOLVED: To provide an oscillation circuit which allows for compaction of an oscillator.SOLUTION: An oscillation circuit includes a circuit for oscillation 30, and a signal adjustment circuit 50 connected with the circuit for oscillation 30. An input voltage based on a DC voltage capable of changing the voltage value is inputted to the circuit for oscillation 30 and signal adjustment circuit 50. The circuit for oscillation 30 oscillates a vibration piece 11, and outputs a first oscillation signal. Frequency of the first oscillation signal is adjusted depending on the value of a voltage outputted from the signal adjustment circuit 50.