The present disclosure relates to an oscillator including a charge and discharge circuit which generates a first oscillation signal according to a clock signal using a first constant current and a second oscillation signal according to an inverted clock signal using a second constant current, an integrating circuit which generates a first comparison voltage reflecting an amount of change in the first oscillation signal based on a comparison reference voltage and a second comparison voltage reflecting an amount of change in the second oscillation signal based on the comparison reference voltage, and a comparison circuit which generates the clock signal and the inverted clock signal according to a result of comparison between the first oscillation signal and the first comparison voltage and a result of comparison between the second oscillation signal and the second comparison voltage.

The present disclosure relates to an oscillator including a charge and discharge circuit which generates a first oscillation signal according to a clock signal using a first constant current and a second oscillation signal according to an inverted clock signal using a second constant current, an integrating circuit which generates a first comparison voltage reflecting an amount of change in the first oscillation signal based on a comparison reference voltage and a second comparison voltage reflecting an amount of change in the second oscillation signal based on the comparison reference voltage, and a comparison circuit which generates the clock signal and the inverted clock signal according to a result of comparison between the first oscillation signal and the first comparison voltage and a result of comparison between the second oscillation signal and the second comparison voltage.

The present disclosure relates to an oscillator including a charge and discharge circuit which generates a first oscillation signal according to a clock signal using a first constant current and a second oscillation signal according to an inverted clock signal using a second constant current, an integrating circuit which generates a first comparison voltage reflecting an amount of change in the first oscillation signal based on a comparison reference voltage and a second comparison voltage reflecting an amount of change in the second oscillation signal based on the comparison reference voltage, and a comparison circuit which generates the clock signal and the inverted clock signal according to a result of comparison between the first oscillation signal and the first comparison voltage and a result of comparison between the second oscillation signal and the second comparison voltage.

The present disclosure relates to an oscillator including a charge and discharge circuit which generates a first oscillation signal according to a clock signal using a first constant current and a second oscillation signal according to an inverted clock signal using a second constant current, an integrating circuit which generates a first comparison voltage reflecting an amount of change in the first oscillation signal based on a comparison reference voltage and a second comparison voltage reflecting an amount of change in the second oscillation signal based on the comparison reference voltage, and a comparison circuit which generates the clock signal and the inverted clock signal according to a result of comparison between the first oscillation signal and the first comparison voltage and a result of comparison between the second oscillation signal and the second comparison voltage.

According to one embodiment, there is provided a semiconductor integrated circuit including an oscillation circuit, a charge pump circuit, a smoothing circuit, and a negative feedback circuit. The charge pump circuit is arranged between each of a power supply input terminal and the oscillation circuit and a power supply output terminal. The smoothing circuit is arranged between the charge pump circuit and the power supply output terminal. The negative feedback circuit is arranged on a path returning from the smoothing circuit to the oscillation circuit. The smoothing circuit includes a first zero point generation circuit.

According to one embodiment, there is provided a semiconductor integrated circuit including an oscillation circuit, a charge pump circuit, a smoothing circuit, and a negative feedback circuit. The charge pump circuit is arranged between each of a power supply input terminal and the oscillation circuit and a power supply output terminal. The smoothing circuit is arranged between the charge pump circuit and the power supply output terminal. The negative feedback circuit is arranged on a path returning from the smoothing circuit to the oscillation circuit. The smoothing circuit includes a first zero point generation circuit.

According to one embodiment, there is provided a semiconductor integrated circuit including an oscillation circuit, a charge pump circuit, a smoothing circuit, and a negative feedback circuit. The charge pump circuit is arranged between each of a power supply input terminal and the oscillation circuit and a power supply output terminal. The smoothing circuit is arranged between the charge pump circuit and the power supply output terminal. The negative feedback circuit is arranged on a path returning from the smoothing circuit to the oscillation circuit. The smoothing circuit includes a first zero point generation circuit.

According to one embodiment, there is provided a semiconductor integrated circuit including an oscillation circuit, a charge pump circuit, a smoothing circuit, and a negative feedback circuit. The charge pump circuit is arranged between each of a power supply input terminal and the oscillation circuit and a power supply output terminal. The smoothing circuit is arranged between the charge pump circuit and the power supply output terminal. The negative feedback circuit is arranged on a path returning from the smoothing circuit to the oscillation circuit. The smoothing circuit includes a first zero point generation circuit.