发明名称 |
Variable oscillator |
摘要 |
A variable frequency oscillator comprising: an oscillatory circuit for generating a periodic output dependent on the capacitance between a first node and a second node of the circuit, and having a capacitative element connected between the first node and the second node; the capacitative element comprising: a variable capacitance unit, the capacitance of which is variable for varying the frequency of the output and a plurality of finite capacitances each being selectively connectable in parallel with the variable capacitance unit between the first node and the second node to trim the frequency of the output.
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申请公布号 |
US6968168(B1) |
申请公布日期 |
2005.11.22 |
申请号 |
US20000618296 |
申请日期 |
2000.07.18 |
申请人 |
CAMBRIDGE SILICON RADIO LTD. |
发明人 |
COLLIER JAMES DIGBY YARLET;SABBERTON IAN MICHAEL |
分类号 |
H03B5/08;H03B1/00;H03B5/12;H03L7/099;H03L7/18;(IPC1-7):H04B7/00 |
主分类号 |
H03B5/08 |
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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