发明授权
- 专利标题： Multiband voltage controlled oscillator without switched capacitor
- 专利标题（中）： 多频带压控振荡器，无开关电容
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申请号： US13176893申请日： 2011-07-06
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公开(公告)号： US08493155B2公开(公告)日： 2013-07-23
- 发明人: Stephane Razafimandimby
- 申请人： Stephane Razafimandimby
- 申请人地址： FR Montrouge
- 专利权人： STMicroelectronics SA
- 当前专利权人： STMicroelectronics SA
- 当前专利权人地址： FR Montrouge
- 代理机构： Allen, Dyer, Doppelt, Milbrath & Gilchrist, P.A.
- 优先权： FR1002850 20100706
- 主分类号： H03B5/12
- IPC分类号： H03B5/12 ; H03K3/282 ; H03K3/354
摘要：
A controlled oscillator includes, connected in parallel, a capacitor configured to be tuneable based upon a first signal, an inductor, and an active impedance. The active impedance is formed by a pair of cross-coupled transistors connected so as to produce a negative resistive component at the terminals of the active impedance. Circuitry produces a degeneracy tuneable by a second signal in the cross-coupled pair, such that the cross-coupled pair produces a capacitive component tuneable based upon the second signal at the terminals of the active impedance.
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