发明授权
- 专利标题: Clock frequency division methods and circuits
- 专利标题(中): 时钟分频方法和电路
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申请号: US12613248申请日: 2009-11-05
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公开(公告)号: US08089304B1公开(公告)日: 2012-01-03
- 发明人: Shafiq M. Jamal
- 申请人: Shafiq M. Jamal
- 申请人地址: BM Hamilton
- 专利权人: Marvell International Ltd.
- 当前专利权人: Marvell International Ltd.
- 当前专利权人地址: BM Hamilton
- 主分类号: H03B19/00
- IPC分类号: H03B19/00
摘要:
Frequency division methods and circuits are provided for producing an output clock signal with a frequency related to the frequency of an input clock signal by a predetermined factor. The method and circuit rely on the input clock signal and on feedback from the output signal to produce an intermediate signal. The frequency of the intermediate signal is divided to produce the output clock signal. The method and circuit may be implemented using few circuit components. In an exemplary embodiment, the method and circuit may be used to produce an output clock signal with a frequency that is two-and-a-half times lower than the frequency of the input clock signal.
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