Abstract: An oscillator circuit includes an amplifier including a first transconductance amplifier and a second transconductance amplifier; and a resonator including a capacitor element and an inductor element. The capacitor element includes a first capacitor and a second capacitor, the inductor element includes a tapped inductor, the tapped inductor includes a first segment of inductor and a second segment of inductor, and the first segment of inductor and the second segment of inductor are coupled using the first capacitor. The first segment of inductor includes a first terminal and a second terminal coupled to an input terminal and an output terminal of the first transconductance amplifier respectively. The second segment of inductor includes a third terminal and a fourth terminal coupled to an input terminal and an output terminal of the second transconductance amplifier, respectively.

Abstract: An oscillator circuit is provided, which relates to the field of electronic technologies, to improve performance of an oscillator. The oscillator circuit includes: a first amplifier (Am1) and a second amplifier (Am2), where the first amplifier (Am1) and the second amplifier (Am2) are switchable, and the oscillator circuit is operable in an inductive feedback mode or a negative resistance mode through switching. The oscillator circuit further includes a capacitive element and an inductive element, where the inductive element includes a tapped inductor that includes four terminals (V1, V2, V3, and V4), two of the four terminals are coupled to differential inputs of the first amplifier (Am1) and differential outputs of the second amplifier (Am2), and the other two terminals are coupled to differential outputs of the first amplifier (Am1).

Abstract: An oscillator circuit is provided, which relates to the field of electronic technologies, to improve performance of an oscillator. The oscillator circuit includes: a first amplifier (Am1) and a second amplifier (Am2), where the first amplifier (Am1) and the second amplifier (Am2) are switchable, and the oscillator circuit is operable in an inductive feedback mode or a negative resistance mode through switching. The oscillator circuit further includes a capacitive element and an inductive element, where the inductive element includes a tapped inductor that includes four terminals (V1, V2, V3, and V4), two of the four terminals are coupled to differential inputs of the first amplifier (Am1) and differential outputs of the second amplifier (Am2), and the other two terminals are coupled to differential outputs of the first amplifier (Am1).

Abstract: This application provides an oscillator circuit. The oscillator circuit includes: an amplifier, including a first transconductance amplifier, and a second transconductance amplifier; and a resonator, including a capacitor element and an inductor element. The capacitor element includes a first capacitor and a second capacitor, the inductor element includes a tapped inductor, the tapped inductor includes a first segment of inductor and a second segment of inductor, and the first segment of inductor and the second segment of inductor are coupled by using the first capacitor. The first segment of inductor includes a first terminal and a second terminal coupled to an input terminal and an output terminal of the first transconductance amplifier respectively. The second segment of inductor includes a third terminal and a fourth terminal coupled to an input terminal and an output terminal of the second transconductance amplifier respectively.