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基本信息:
- 专利标题: 用于压控振荡器频率调谐的重叠二段电容器组
- 专利标题(英):Overlapping, two-segment capacitor bank for vco frequency tuning
- 申请号:CN201080020193.7 申请日:2010-05-07
- 公开(公告)号:CN102422526A 公开(公告)日:2012-04-18
- 发明人: 曾义 , 潘祖王 , 林义乡
- 申请人: 高通股份有限公司
- 申请人地址: 美国加利福尼亚州
- 专利权人: 高通股份有限公司
- 当前专利权人: 高通股份有限公司
- 当前专利权人地址: 美国加利福尼亚州
- 代理机构: 北京律盟知识产权代理有限责任公司
- 代理人: 宋献涛
- 优先权: 12/437,462 2009.05.07 US
- 国际申请: PCT/US2010/034129 2010.05.07
- 国际公布: WO2010/129925 EN 2010.11.11
- 进入国家日期: 2011-11-07
- 主分类号: H03B5/12
- IPC分类号: H03B5/12
A VCO (for example, in an FM receiver) includes an LC resonant tank. The LC resonant tank includes a coarse tuning capacitor bank and a fine tuning capacitor bank. The coarse tuning capacitor bank contains a plurality of digitally controlled coarse tuning capacitor elements, each providing a first capacitance value when active. The fine tuning capacitor bank contains a plurality of digitally controlled fine tuning capacitor elements, each providing a second capacitance value when active. To address the practical problem of capacitor mismatch, capacitance overlap throughout the VCO tuning range is created by selecting the first and second capacitance values such that the capacitance value of the fine capacitor bank is greater than the first capacitance value when all of the digitally controlled fine tuning capacitor elements of the fine capacitor bank are active.
公开/授权文献:
- CN102422526B 用于压控振荡器频率调谐的重叠二段电容器组 公开/授权日:2015-10-21
IPC结构图谱:
H | 电学 |
--H03 | 基本电子电路 |
----H03B | 使用工作于非开关状态的有源元件电路,直接或经频率变换产生振荡;由这样的电路产生噪声 |
------H03B5/00 | 利用由输出至输入有正反馈的放大器产生振荡 |
--------H03B5/02 | .零部件 |
----------H03B5/12 | ..放大器的有源元件为半导体器件 |