Patent ID: 7952442
Filing Date: 2011-05-31
Classification: H01L

Abstract:
1. An oscillator circuit, comprising: an active oscillator having two output nodes; an inductor loop coupled to the output nodes; and at least one capacitive circuit coupled to one of the output nodes, said capacitive circuit including a capacitor, a resistor, and a first switch, wherein said resistor provides a bias voltage to the capacitor when the first switch is open and wherein said first switch couples and decouples the capacitor to the output nodes of the active oscillator, and wherein the active oscillator and capacitive circuit are included in a semiconductor package which includes an integrated circuit chip, said inductor loop including: a first conductor connecting a bonding pad on the chip to an input/output pin of a semiconductor package; and a second conductor connecting the bonding pad on the chip to the input/output pin of the package.