Oscillation circuit, electronic apparatus, moving object, and method of adjusting oscillation circuit
AssigneeSeiko Epson Corporation
InventorsYosuke ITASAKA, Atsushi KIYOHARA
Life of this patent
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Abstract
An oscillation circuit includes a circuit for oscillation, a first frequency adjustment circuit for adjusting a frequency, and a first terminal. The oscillation circuit has a first mode in which the circuit for oscillation and the first frequency adjustment circuit are electrically connected to each other and the first frequency adjustment circuit and the first terminal are not electrically connected to each other, and a second mode in which the circuit for oscillation and the first frequency adjustment circuit operate and a terminal on a side where a signal of the first frequency adjustment circuit is output and the first terminal are electrically connected to each other.
Claims16
An oscillation circuit comprising:
- a circuit for oscillation which is electrically connected to a resonator and oscillates the resonator;
- a first frequency adjustment circuit that adjusts a frequency of the circuit for oscillation;
- and
- a first terminal,
- wherein the oscillation circuit has
- a first mode in which the circuit for oscillation and the first frequency adjustment circuit are electrically connected to each other, and the first frequency adjustment circuit and the first terminal are not electrically connected to each other, and
- a second mode in which the circuit for oscillation and the first frequency adjustment circuit operate, and a terminal on a side where a signal of the first frequency adjustment circuit is output and the first terminal are electrically connected to each other.
A method of adjusting an oscillation circuit including a circuit for oscillation which is electrically connected to a resonator and oscillates the resonator, a first frequency adjustment circuit that adjusts a frequency of the circuit for oscillation, and a first terminal, the oscillation circuit having a first mode in which the circuit for oscillation and the first frequency adjustment circuit are electrically connected to each other and the first frequency adjustment circuit and the first terminal are not electrically connected to each other, and a second mode in which the circuit for oscillation and the first frequency adjustment circuit operate and a terminal on a side where a signal of the first frequency adjustment circuit is output and the first terminal are electrically connected to each other, the method comprising:
- setting the oscillation circuit to be in the second mode;
- and
- adjusting the oscillation circuit on the basis of the signal of the first frequency adjustment circuit which is output from the first terminal in a state where the oscillation circuit is set to be in the second mode.
Dependencies are inferred from the claim text.