Abstract: A circuit device is configured to switching between a first mode in which phase noise of an output clock signal is lower than that in a second mode and the second mode in which power consumption is smaller than that in the first mode, and the circuit device includes an oscillation circuit configured to generate an oscillation signal, a waveform shaping circuit configured to perform waveform shaping on the oscillation signal to obtain a rectangular wave clock signal; and an output circuit configured to output the output clock signal based on the clock signal. A driving capability of the waveform shaping circuit in the first mode is higher than a driving capability of the waveform shaping circuit in the second mode.

Abstract: A circuit apparatus includes a clock signal generation circuit configured to generate a clock signal by a resonator, an output circuit configured to operate in a first state or a second state in which a consumption current is different from that in the first state and output an output clock signal, and a temperature compensation circuit configured to compensate for a frequency-temperature characteristic of the clock signal based on a temperature detection signal. When the output circuit operates in the first state, the temperature compensation circuit outputs a first temperature compensation signal that compensates for a frequency-temperature characteristic when the output circuit operates in the first state, and the clock signal generation circuit generates a clock signal based on the first temperature compensation signal.

Abstract: A method of manufacturing an oscillator including housing a first resonator and a first integrated circuit device configured to oscillate the first resonator in a first container to manufacture the first oscillator, and housing a second resonator and a second integrated circuit device configured to oscillate the second resonator in a second container to manufacture the second oscillator, wherein the first integrated circuit device includes a first oscillation circuit configured to oscillate the first resonator to output a first oscillation signal, and no PLL circuit, the second integrated circuit device includes a second oscillation circuit configured to oscillate the second resonator to output a second oscillation signal, and a PLL circuit to which the second oscillation signal is input, and which is configured to output a third oscillation signal, and the first container and the second container are containers same in type.

Abstract: An integrated circuit apparatus includes a pad via which an AC signal is inputted or outputted, a circuit that overlaps with the pad in the plan view, protective wiring provided between the pad and the circuit, and a resistor having one end electrically coupled to the protective wiring and another end electrically coupled to an electric charge discharging path.

Abstract: The integrated circuit device includes: a pad that has a shape having a longitudinal direction and a lateral direction; a circuit that overlaps the pad in a plan view, and that is electrically coupled to the pad; a lead-out wiring that is led out from an outer edge on a longitudinal side of the pad along the lateral direction of the pad; and a via group that electrically couples the lead-out wiring and a wiring of the circuit and that does not overlap the pad in the plan view.

Abstract: The circuit device includes a current generation circuit configured to generate a temperature compensation current based on a temperature detection voltage, and a current-voltage conversion circuit configured to perform current-voltage conversion on the temperature compensation current to output a temperature compensation voltage. The current-voltage conversion circuit includes an operational amplifier, and a feedback circuit. The operational amplifier includes a differential section having a current mirror circuit and differential pair transistors, an output section configured to output the temperature compensation voltage, and an RC low-pass filter configured to output a signal obtained by performing a low-pass filter process on an output signal of the differential section to an input node of the output section.

Abstract: An oscillator includes a resonator and an integrated circuit, the integrated circuit includes an oscillation circuit that oscillates the resonator, a temperature sensor, a temperature compensation circuit that compensates for temperature characteristics of the resonator based on an output signal of the temperature sensor, an output circuit that receives a signal output from the oscillation circuit and outputs an oscillation signal, and a heat generating circuit, and in the heat generating circuit, a current flows in a first period after supply of a power supply voltage from the outside is started to generate heat and no current flows in the second period after the first period ends.

Abstract: Provided is a circuit device including: a first terminal electrically coupled to one end of a vibrator; a second terminal electrically coupled to the other end of the vibrator; an oscillation circuit electrically coupled to the first terminal and the second terminal, and oscillating the vibrator; a third terminal to which an external input signal is input; a switch circuit provided between a first wiring which couples the first terminal and the oscillation circuit with each other and the third terminal, and having a P-type transistor; and a control circuit outputting a regulated voltage, in which a power supply voltage is regulated, as a substrate voltage of the P-type transistor.

Abstract: An integrated circuit device includes a temperature sensor, a heat generation source circuit serving as a heat generation source, a pad for external coupling, and a capacitor having the MIM structure in which one electrode is electrically coupled to the pad for external coupling. In a plan view orthogonal to the substrate on which a circuit element is formed, the capacitor having the MIM structure and the temperature sensor overlap.

Abstract: The circuit device includes a current generation circuit configured to generate a temperature compensation current based on a temperature detection voltage, and a current-voltage conversion circuit configured to perform current-voltage conversion on the temperature compensation current to output a temperature compensation voltage. The current-voltage conversion circuit includes an operational amplifier, and a feedback circuit. The operational amplifier includes a differential section having a current mirror circuit and differential pair transistors, an output section configured to output the temperature compensation voltage, and an RC low-pass filter configured to output a signal obtained by performing a low-pass filter process on an output signal of the differential section to an input node of the output section.

Abstract: The circuit device includes a current generation circuit and a current-voltage conversion circuit. The current generation circuit generates a temperature compensation current based on a temperature detection voltage from the temperature sensor and temperature compensation data. The current-voltage conversion circuit converts the temperature compensation current into the temperature compensation voltage. The current generation circuit performs a fine adjustment of the temperature compensation current based on lower bits of the temperature compensation data, and performs a coarse adjustment of the temperature compensation current based on higher bits of the temperature compensation data.

Abstract: Provided is a temperature sensor including a bipolar transistor, a resistor, and a variable resistance circuit. The resistor is provided between a first node coupled to a base node of the bipolar transistor and a collector node of the bipolar transistor. The variable resistance circuit is provided between an emitter node of the bipolar transistor and a ground node.

Abstract: An integrated circuit device includes a first pad and a second pad electrically coupled to one end and the other end of a resonator, an oscillation circuit that is electrically coupled to the first pad and the second pad and generates an oscillation signal by causing the resonator to oscillate, and an output circuit that outputs a clock signal based on the oscillation signal. The oscillation circuit is disposed along a first side of the integrated circuit device among the first side, a second side that intersects the first side, a third side that is an opposite side of the first side, and a fourth side that is an opposite side of the second side. The first pad and the second pad are disposed in the oscillation circuit along the first side in a plan view, and the output circuit is disposed along the second side.

Abstract: Provided is a circuit device including: a first terminal electrically coupled to one end of a vibrator; a second terminal electrically coupled to the other end of the vibrator; an oscillation circuit electrically coupled to the first terminal and the second terminal, and oscillating the vibrator; a third terminal to which an external input signal is input; a switch circuit provided between a first wiring which couples the first terminal and the oscillation circuit with each other and the third terminal, and having a P-type transistor; and a control circuit outputting a regulated voltage, in which a power supply voltage is regulated, as a substrate voltage of the P-type transistor.

Abstract: An oscillator includes a resonator and an integrated circuit, the integrated circuit includes an oscillation circuit that oscillates the resonator, a temperature sensor, a temperature compensation circuit that compensates for temperature characteristics of the resonator based on an output signal of the temperature sensor, an output circuit that receives a signal output from the oscillation circuit and outputs an oscillation signal, and a heat generating circuit, and in the heat generating circuit, a current flows in a first period after supply of a power supply voltage from the outside is started to generate heat and no current flows in the second period after the first period ends.

Abstract: A circuit device includes a drive circuit configured to drive a physical quantity transducer by a drive signal, a PLL circuit configured to generate a clock signal by using a drive signal as a reference signal, and a measurement circuit that includes a circuit which is operated by an operation signal based on the clock signal and performs measurement processing based on a measurement signal from the physical quantity transducer, and the PLL circuit generates the clock signal having a frequency of j×fdr?fck/i in a case where it is set that a frequency of the drive signal is fdr, a frequency of the clock signal is fck, i is an integer of 1 or more, j is an integer of 1 or more, and a frequency of the operation signal is fck/i.

Abstract: A detection device includes a drive circuit of a physical quantity transducer, a synchronization signal output circuit, and a detection circuit that performs detection of a physical quantity signal based on a physical quantity. The synchronization signal output circuit includes a delay locked loop (DLL) circuit that includes: a delay control circuit that outputs a delay control signal and a delay circuit that includes a plurality of delay units in which a delay time is controlled by the delay control signal; an adjustment circuit that includes at least one delay unit in which a delay time is controlled by the delay control signal, and outputs a signal obtained by delaying an input signal based on the output signal from the drive circuit to the DLL circuit; and an output circuit that outputs the synchronization signal based on multi-phase clock signals from the DLL circuit.

Abstract: A unit operable in a plurality of operating modes includes a first circuit, a regulator and current controller. The first circuit is adapted to operate in a first operating mode, and not to operate in a second operating mode preceding the first operating mode. The a regulator is adapted to supply driving voltage to the first circuit, and switchable among a plurality of levels of internal current. The current controller adapted to control the internal current of the regulator in the first operating mode to a first level among the plurality of levels of internal current. The current controller adapted control the internal current of the regulator in the second operating mode to a second level among the plurality of levels of internal current. The second level is lower than the first level.

Abstract: A unit operable in a plurality of operating modes includes a first circuit, a regulator and current controller. The first circuit is adapted to operate in a first operating mode, and not to operate in a second operating mode preceding the first operating mode. A regulator is adapted to supply driving voltage to the first circuit, and is switchable among a plurality of levels of internal current. The current controller is adapted to control the internal current of the regulator in the first operating mode to a first level among the plurality of levels of internal current. The current controller is adapted to control the internal current of the regulator in the second operating mode to a second level among the plurality of levels of internal current. The second level is lower than the first level.

Abstract: A unit operable in a plurality of operating modes includes a first circuit, a regulator and current controller. The first circuit is adapted to operate in a first operating mode, and not to operate in a second operating mode preceding the first operating mode. The a regulator is adapted to supply driving voltage to the first circuit, and switchable among a plurality of levels of internal current. The current controller adapted to control the internal current of the regulator in the first operating mode to a first level among the plurality of levels of internal current. The current controller adapted control the internal current of the regulator in the second operating mode to a second level among the plurality of levels of internal current. The second level is lower than the first level.