Voltage controlled oscillator
AssigneeNEC Electronics Corporation
InventorRyota Yamamoto
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Abstract
According to one aspect of the present invention, there is provided a voltage controlled oscillator controlling frequency of an output signal according to input voltage, the voltage controlled oscillator including a current controlled oscillator setting the frequency of the output signal based on control current, and a voltage-current converter including a transistor controlling a current amount of the control current according to the input voltage, in which the voltage-current converter is supplied with control voltage, and threshold value voltage of the transistor is controlled according to the control voltage.
Claims10
A voltage controlled oscillator controlling frequency of an output signal according to input voltage, the voltage controlled oscillator comprising:
- a current controlled oscillator setting the frequency of the output signal based on control current;
- and
- a voltage-current converter including a transistor controlling a current amount of the control current according to the input voltage, wherein
- the voltage-current converter is supplied with control voltage, and threshold value voltage of the transistor is controlled according to the control voltage.
Dependencies are inferred from the claim text.