Integrated circuit, oscillator, electronic apparatus, and vehicle
View Patent ↗An integrated circuit includes a first coupling terminal and a second coupling terminal disposed along a first side, an oscillation circuit which is electrically coupled to a resonator element via the first coupling terminal and the second coupling terminal, a temperature sensor, a temperature compensation circuit configured to compensate a temperature characteristic of the resonator element based on an output signal of the temperature sensor, and an output circuit to which a signal output from the oscillation circuit is input, and which is configured to output an oscillation signal, wherein d 1 <d 0 and d 2 <d 0 , in which an end-to-end distance between the temperature sensor and the output circuit is d 0 , an end-to-end distance between the first coupling terminal and the output circuit is d 1 , and an end-to-end distance between the second coupling terminal and the output circuit is d 2.
1. An integrated circuit comprising:
a first coupling terminal and a second coupling terminal disposed along a first side;
an oscillation circuit which is electrically coupled to a resonator element via the first coupling terminal and the second coupling terminal;
a temperature sensor;
a temperature compensation circuit configured to compensate a temperature characteristic of the resonator element based on an output signal of the temperature sensor; and
an output circuit configured to receive a signal output from the oscillation circuit and output an oscillation signal, the output circuit being located between the first coupling terminal and the second coupling terminal in a plan view, wherein
d 1 <d 0 and d 2 <d 0 , in which
an end-to-end distance between the temperature sensor and the output circuit is d 0 ,
an end-to-end distance between the first coupling terminal and the output circuit is d 1 , and
an end-to-end distance between the second coupling terminal and the output circuit is d 2 .
2. An oscillator comprising:
the integrated circuit according to claim 1 ; and
the resonator element electrically coupled to the integrated circuit.
3. The oscillator according to claim 2 , further comprising:
a base having a recessed part; and
a lid bonded to the base so as to close an opening of the recessed part, wherein
the integrated circuit and the resonator element are disposed in the recessed part.
4. The oscillator according to claim 2 , further comprising:
a base which has a first principal surface and a second principal surface in an obverse-reverse relationship, and which is provided with a first recessed part opening in the first principal surface and a second recessed part opening in the second principal surface; and
a lid bonded to the first principal surface of the base so as to close an opening of the first recessed part, wherein
the resonator element is disposed in the first recessed part, and
the integrated circuit is disposed in the second recessed part.
5. The oscillator according to claim 2 , further comprising:
a semiconductor substrate which has a first principal surface and a second principal surface in an obverse-reverse relationship, and which is provided with the integrated circuit formed on one of the first principal surface and the second principal surface; and
a lid bonded to the semiconductor substrate so as to cover the resonator element, wherein
the resonator element is disposed at the first principal surface side.
6. An electronic apparatus comprising:
the oscillator according to claim 2 ; and
a processing circuit configured to operate based on the oscillation signal.
7. A vehicle comprising:
the oscillator according to claim 2 ; and
a processing circuit configured to operate based on the oscillation signal.
8. An integrated circuit comprising:
a first coupling terminal and a second coupling terminal disposed along a first side;
an oscillation circuit which is electrically coupled to a resonator element via the first coupling terminal and the second coupling terminal;
a temperature sensor disposed so as to be shifted toward a second side opposed to the first side;
a temperature compensation circuit configured to compensate a temperature characteristic of the resonator element based on an output signal of the temperature sensor; and
an output circuit configured to receive a signal output from the oscillation circuit and output an oscillation signal, wherein
d 1 <d 0 and d 2 <d 0 , in which
an end-to-end distance between the temperature sensor and the output circuit is d 0 ,
an end-to-end distance between the first coupling terminal and the output circuit is d 1 , and
an end-to-end distance between the second coupling terminal and the output circuit is d 2 .
9. An oscillator comprising:
the integrated circuit according to claim 8 ; and
the resonator element electrically coupled to the integrated circuit.
10. An integrated circuit comprising:
a first coupling terminal and a second coupling terminal disposed along a first side;
a third coupling terminal and a fourth coupling terminal disposed along a third side which couples one ends of the first side and a second side opposed to the first side to each other;
a fifth coupling terminal and a sixth coupling terminal disposed along a fourth side which couples other ends of the first side and the second side to each other;
an oscillation circuit which is electrically coupled to a resonator element via the first coupling terminal and the second coupling terminal;
a temperature sensor:
a temperature compensation circuit configured to compensate a temperature characteristic of the resonator element based on an output signal of the temperature sensor; and
an output circuit configured to receive a signal output from the oscillation circuit and output an oscillation signal, wherein
d 1 <d 0 and d 2 <d 0 , in which
an end-to-end distance between the temperature sensor and the output circuit is d 0 ,
an end-to-end distance between the first coupling terminal and the output circuit is d 1 , and
an end-to-end distance between the second coupling terminal and the output circuit is d 2 .
11. The integrated circuit according to claim 10 , wherein
the third coupling terminal is a terminal which is electrically coupled to the output circuit, and to which the oscillation signal is output, and
the third coupling terminal is located at one side of a central axis and the temperature sensor is located at the other side, wherein the central axis is defined as an axis which is perpendicular to the first side, and which passes through a center of the integrated circuit in a plan view.
12. The integrated circuit according to claim 10 , wherein
the third coupling terminal and the fifth coupling terminal, and the fourth coupling terminal and the sixth coupling terminal are each disposed along a direction in which the first coupling terminal and the second coupling terminal are arranged side by side, and
D 1 <D 2 and D 1 <D 3 , in which
an end-to-end distance between the first coupling terminal and the second coupling terminal is D 1 ,
an end-to-end distance between the third coupling terminal and the fifth coupling terminal is D 2 , and
an end-to-end distance between the fourth coupling terminal and the sixth coupling terminal is D 3 .
13. The integrated circuit according to claim 10 , wherein
d 4 <d 0 and d 6 <d 0 , in which
an end-to-end distance between the output circuit and the fourth coupling terminal is d 4 , and
an end-to-end distance between the output circuit and the sixth coupling terminal is d 6 .
14. The integrated circuit according to claim 10 , wherein
d 3 <d 0 and d 5 <d 0 , in which
an end-to-end distance between the output circuit and the third coupling terminal is d 3 , and
an end-to-end distance between the output circuit and the fifth coupling terminal is d 5 .
15. An oscillator comprising:
the integrated circuit according to claim 10 ; and
the resonator element electrically coupled to the integrated circuit.