Patent ID: 8669825

Claim:
A temperature-compensated oscillator comprising: a voltage-controlled oscillation circuit; a temperature compensation circuit adapted to output a temperature compensation voltage used for temperature compensation of an oscillation frequency of the voltage-controlled oscillation circuit; a switch circuit adapted to perform ON/OFF control on power supply to the temperature compensation circuit; a sample-and-hold circuit adapted to perform switching control between an ON state of outputting the temperature compensation voltage output from the temperature compensation circuit to the voltage-controlled oscillation circuit while holding the temperature compensation voltage when the power is supplied to the temperature compensation circuit, and an OFF state of outputting the temperature compensation voltage held to the voltage-controlled oscillation circuit while cutting connection to the temperature compensation circuit when the power supply to the temperature compensation circuit is cut; and an output circuit adapted to output an ON/OFF signal for performing switching control between an ON state and an OFF state of the switch circuit, and output an ON/OFF signal for performing the switching control of the sample-and-hold circuit, the output circuit includes an LC oscillation circuit as an oscillation source circuit of the ON/OFF signals.