Title: Voltage-controlled oscillator circuit and pll circuit
Application Number: 200610105812 Application Date: 2006.07.12
Publication Number: 1897463 Publication Date: 2007.01.17
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: H03L7/099
Applicant(s) Name: Sony Corp. Address:
Inventor(s) Name: Ueno Yosuke
Attorney & Agent: liu gong liu zongjie
Abstract:
    A differential type voltage-controlled oscillator circuit including: a plurality of VCO cells each having one pair of switching elements, the switching elements having one terminal side connected to a voltage source via a load and another terminal side connected to a common current source via a common node, the switching elements being supplied with differential signals, the plurality of VCO cells outputting differential signals different in phase from the differential signals; and a vibration canceling section connecting the plurality of VCO cells such that vibration at each node is cancelled.
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