发明授权
- 专利标题: Generating non-integer clock division
- 专利标题(中): 生成非整数时钟分频
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申请号: US09968407申请日: 2001-09-28
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公开(公告)号: US06956922B2公开(公告)日: 2005-10-18
- 发明人: Paul J. Weldon , Henning Lysdal
- 申请人: Paul J. Weldon , Henning Lysdal
- 申请人地址: US CA Santa Clara
- 专利权人: Intel Corporation
- 当前专利权人: Intel Corporation
- 当前专利权人地址: US CA Santa Clara
- 代理机构: Blakely, Sokoloff, Taylor and Zafman
- 主分类号: G06F7/68
- IPC分类号: G06F7/68 ; H03K23/68 ; H03D3/24
摘要:
A clock divider and method is disclosed for generating an output clock signal having a frequency that is a fractional or integral multiple of a reference clock signal frequency. In one embodiment, the clock divider divides a clock signal by a first divisor in a first period and by a second divisor in a second period, where the second period following the first period. The clock divider circuit is triggered by a first edge of the clock signal and generates a first signal. A synchronizing circuit is coupled to the clock divider to generate a second signal from the first signal, the second signal being synchronized by a second edge of the clock signal, where the second edge is in a direction opposite to the first edge. A selector is coupled to the synchronizing circuit and the clock divider to generate an output signal by selecting the first signal and the second signal alternately between the first period and the second period.
公开/授权文献
- US20030063699A1 Generating non-integer clock division 公开/授权日:2003-04-03
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