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US 11,929,710 B2Granted
Oscillator
AssigneeSeiko Epson Corporation
InventorYosuke Itasaka
Life of this patent
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Abstract
An oscillator includes a resonator, an oscillation circuit, and first and temperature compensation circuits. The first temperature compensation circuit performs a first-order first temperature compensation processing in a first mode and performs the first-order first temperature compensation processing and a high-order first temperature compensation processing in a second mode for a frequency of a first clock signal generated by oscillation of the resonator by the oscillation circuit. The second temperature compensation circuit receives the first clock signal and outputs a second clock signal subjected to a high-order second temperature compensation processing based on the first clock signal.
Claims15
An oscillator comprising:
- a resonator;
- an oscillation circuit configured to oscillate the resonator;
- a first temperature compensation circuit configured to perform a first temperature compensation processing of temperature-compensating for a frequency of a first clock signal generated by oscillation of the resonator by the oscillation circuit;
- and
- a second temperature compensation circuit configured to receive the first clock signal subjected to the first temperature compensation processing, and to output a second clock signal subjected to a second temperature compensation processing based on the first clock signal, wherein
- the first temperature compensation circuit is configured to:
- perform, in a first mode, a first-order first temperature compensation processing as the first temperature compensation processing;
- and
- perform, in a second mode, the first-order first temperature compensation processing and a high-order first temperature compensation processing as the first temperature compensation processing,
- the second temperature compensation circuit is configured to perform a high-order second temperature compensation processing as the second temperature compensation processing, and
- the oscillator is set to the first mode when the oscillator is used as an oven controlled oscillator that controls a temperature of the resonator.
8 more elements
An oscillator comprising:
- a resonator;
- an oscillation circuit configured to oscillate the resonator;
- a first temperature compensation circuit configured to perform a first temperature compensation processing of temperature-compensating for a frequency of a first clock signal generated by oscillation of the resonator by the oscillation circuit;
- and
- a second temperature compensation circuit configured to receive the first clock signal subjected to the first temperature compensation processing, and to output a second clock signal subjected to a second temperature compensation processing based on the first clock signal, wherein
- the first temperature compensation circuit is configured to perform a first-order first temperature compensation processing as the first temperature compensation processing,
- the second temperature compensation circuit is configured to perform a high-order second temperature compensation processing as the second temperature compensation processing,
- the oscillator circuit is configured to output only the second clock signal as an output clock signal of the oscillator,
- the first temperature compensation circuit is configured to
- perform, in a first mode, the first-order first temperature compensation processing as the first temperature compensation processing, and
- perform, in a second mode, the first-order first temperature compensation processing and a high-order first temperature compensation processing as the first temperature compensation processing, and
- the oscillator is set to the first mode when the oscillator is used as an oven controlled oscillator that controls a temperature of the resonator.
9 more elements
An oscillator comprising:
- a resonator;
- a first circuit device including:
- an oscillation circuit configured to oscillate the resonator;
- and
- a first temperature compensation circuit configured to perform a first temperature compensation processing of temperature-compensating for a frequency of a first clock signal generated by oscillation of the resonator by the oscillation circuit;
- a second circuit device including:
- a second temperature compensation circuit configured to receive the first clock signal subjected to the first temperature compensation processing, and to output a second clock signal subjected to a second temperature compensation processing based on the first clock signal;
- a first package in which the resonator and the first circuit device are accommodated;
- and
- a second package in which the first package and the second circuit device are accommodated, wherein
- the first temperature compensation circuit is configured to perform a first-order first temperature compensation processing as the first temperature compensation processing,
- the second temperature compensation circuit is configured to perform a high-order second temperature compensation processing as the second temperature compensation processing,
- the first temperature compensation circuit is configured to
- perform, in a first mode, the first-order first temperature compensation processing as the first temperature compensation processing, and
- perform, in a second mode, the first-order first temperature compensation processing and a high-order first temperature compensation processing as the first temperature compensation processing, and
- the oscillator is set to the first mode when the oscillator is used as an oven controlled oscillator that controls a temperature of the resonator.
13 more elements
Dependencies are inferred from the claim text.