OSCILLATOR CIRCUIT AND ASSOCIATED OSCILLATOR DEVICE
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United States of America
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Mar 19, 2020
app pub date -
Dec 18, 2018
filing date -
Dec 18, 2018
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Abstract
The present invention provides an oscillator circuit and associated oscillator device. The oscillator circuit comprises a negative-temperature-coefficient (NTC) bias current generating circuit and a set of oscillator sub-block circuits. The NTC bias current generating circuit is coupled between a supply voltage and a ground voltage, and is arranged to generate at least one NTC bias current. The set of oscillator sub-block circuits are coupled to each other to form an oscillator. Each oscillator sub-block circuit of the set of oscillator sub-block circuits comprises a plurality of transistors coupled between the supply voltage and a node within the NTC bias current generating circuit, wherein the NTC bias current generating circuit and the aforementioned each oscillator sub-block circuit share at least one transistor in the plurality of transistors.
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