发明名称 |
Tunable capacitive component, and LC oscillator with the component |
摘要 |
The invention is directed to a tunable, capacitive component that includes a pair of MOS transistors whose gate connections are connected via a respective coupling capacitance to a pair of circuit nodes between which the tuned capacitance can be tapped off. The four load connections of the MOS transistors are connected to one another. In addition, a tuning input and a reference signal input are provided that are both coupled to the transistor pair. In this arrangement, the reference signal input is designed for setting the operating point of the transistors. The tunable capacitance has a large tuning range and also a low series resistance and permits good linearity properties on account of the operating point setting. The component can be used advantageously in LC oscillators. |
申请公布号 |
US2005088249(A1) |
申请公布日期 |
2005.04.28 |
申请号 |
US20040934167 |
申请日期 |
2004.09.03 |
申请人 |
OEHM JURGEN;PHAM-STABNER DUYEN |
发明人 |
OEHM JURGEN;PHAM-STABNER DUYEN |
分类号 |
H03B5/12;(IPC1-7):H03B5/00;H03K17/16 |
主分类号 |
H03B5/12 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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