Circuit device, oscillator, electronic apparatus, and moving object
AssigneeSeiko Epson Corporation
InventorHisahiro ITO
Life of this patent
Estimating the term…
Abstract
A circuit device includes an oscillation circuit that includes a variable capacitance circuit and performs an operation of oscillating an oscillation element; and a control unit. The variable capacitance circuit includes a plurality of variable capacitance elements. When an operation mode is a first operation mode, the control unit supplies applied voltages in which at least one thereof is a variable voltage to the plurality of variable capacitance elements, and when the operation mode is a second operation mode, the control unit supplies applied voltages which are all fixed voltages to the plurality of variable capacitance elements.
Claims11
A circuit device comprising:
- an oscillation circuit that includes a variable capacitance circuit and performs an operation of oscillating an oscillation element;
- and
- a control unit,
- wherein the variable capacitance circuit includes first to n-th variable capacitance elements (where, n is an integer of 2 or more),
- when an operation mode is a first operation mode, the control unit supplies first to n-th applied voltages in which at least one thereof is a variable voltage to the first to n-th variable capacitance elements, and
- when the operation mode is a second operation mode, the control unit supplies the first to n-th applied voltages which are fixed voltages to the first to n-th variable capacitance elements.
Dependencies are inferred from the claim text.