Patent ID: 6927643
Filing Date: 2005-08-09
Classification: H03B

Abstract:
1. An oscillator circuit, which comprises: a tank circuit having a first port and a second port, the tank circuit configured to resonate at one or more predefined frequencies; a first oscillator transistor having a first port, a second port coupled to the first port of the tank circuit, and a third port; a second oscillator transistor having a first port, a second port coupled to the second port of the tank circuit, and a third port; a gain-cell tuning inductor coupled between the third ports of the first and second oscillator transistors: a first capacitor coupled between the third port of the first oscillator transistor and the second port of the tank circuit; and a second capacitor coupled between the third port of the second oscillator transistor and the first port of the tank circuit, wherein the gain-cell tuning inductor is operable to conduct a bias signal supplied thereto to the third ports of the first and second oscillator transistors.