发明授权
- 专利标题： Wide range/high speed low power CMOS VCO
- 专利标题（中）： 宽范围/高速低功耗CMOS VCO
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申请号： US12246429申请日： 2008-10-06
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公开(公告)号： US07863991B1公开(公告)日： 2011-01-04
- 发明人: Kamran Iravani
- 申请人： Kamran Iravani
- 申请人地址： US CA Los Altos
- 专利权人： Pico Semiconductor, Inc.
- 当前专利权人： Pico Semiconductor, Inc.
- 当前专利权人地址： US CA Los Altos
- 主分类号： H03K3/03
- IPC分类号： H03K3/03
摘要：
A VCO circuit having low jitter and low PSS (power supply sensitivity). The VCO circuit includes a first ring oscillator stage, a second ring oscillator stage coupled to the first ring oscillator stage, and a VCO input coupled to both the first ring oscillator stage and the second ring oscillator stage for receiving a control voltage. Each of the first ring oscillator stage and the second ring oscillator stage further includes a CMOS inverter with a plurality of cross coupled transistors to implement oscillation of the VCO circuit.
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