公开(公告)号：EP2795793A1

公开(公告)日：2014-10-29

申请号：EP11877634.3

申请日：2011-12-19

申请人： Intel Corporation

发明人： BANIN, Rotem ,  DEGANI, Ofir ,  SOCHER, Eran

IPC分类号： H03K3/03 ,  H03B5/08

CPC分类号： H03B27/00 ,  H03B5/1852 ,  H03K3/0315

摘要： Embodiments provide a multi-phase voltage controlled oscillator (VCO) that produces a plurality of output signals having a common frequency and different phases. In one embodiment, the VCO may include a passive conductive structure having a first ring and a plurality of taps spaced around the first ring. The VCO may further include a capacitive load coupled to the passive conductive structure, one or more feedback structures coupled between a pair of opposing taps of the plurality of taps, and one or more current injection devices coupled between a pair of adjacent taps of the plurality of taps.