发明授权
- 专利标题: Amplitude-controlled oscillator circuit and method for operating an amplitude-controlled oscillator circuit
- 专利标题(中): 幅度控制振荡器电路和操作振幅电路的方法
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申请号: US11037381申请日: 2005-01-18
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公开(公告)号: US07170359B2公开(公告)日: 2007-01-30
- 发明人: Heiko Koerner
- 申请人: Heiko Koerner
- 申请人地址: DE Munich
- 专利权人: Infineon Technologies AG
- 当前专利权人: Infineon Technologies AG
- 当前专利权人地址: DE Munich
- 代理机构: Slater & Matsil, L.L.P.
- 优先权: DE10-2004-005261 20040203
- 主分类号: H03L5/00
- IPC分类号: H03L5/00
摘要:
An amplitude-controlled oscillator circuit includes an oscillator for providing a frequency signal having a controllable signal amplitude, a divider circuit for a frequency division of the frequency signal, a minimum amplitude of the frequency signal being associated to the divider circuit and the divider circuit being formed to output a divided frequency signal having a predetermined quality when the signal amplitude is greater than or equal to the minimum amplitude. In addition, the amplitude-controlled oscillator circuit includes a controller for controlling the signal amplitude of the frequency signal, the controller being formed to control the signal amplitude such that it is greater than or equal to the minimum amplitude. It is possible by means of such an amplitude-controlled oscillator circuit to ensure in a simple and low-cost manner that the divided frequency signal has a predetermined quality for example within a wide temperature range.
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