发明授权
- 专利标题： High speed multi-modulus prescalar divider
- 专利标题（中）： 高速多模式预分频器
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申请号： US11717262申请日： 2007-03-13
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公开(公告)号： US07826563B2公开(公告)日： 2010-11-02
- 发明人: Hongming An , Simon Pang , Viet Linh Do
- 申请人： Hongming An , Simon Pang , Viet Linh Do
- 申请人地址： US CA San Diego
- 专利权人： Applied Micro Circuits Corporation
- 当前专利权人： Applied Micro Circuits Corporation
- 当前专利权人地址： US CA San Diego
- 代理机构： Law Office of Gerald Maliszewski
- 代理商 Gerald Maliszewski
- 主分类号： H03D3/24
- IPC分类号： H03D3/24
摘要：
A system and method are provided for multi-modulus division. The method accepts an input first signal having a first frequency and divides the first frequency by an integral number. A second signal is generated with a plurality of phase outputs, each having a second frequency. Using a daisy-chain register controller, phase outputs are selected and supplied as a third signal with a frequency. Selecting phase outputs using the daisy-chain register controller includes supplying the third signal as a clock signal to registers having outputs connected in a daisy-chain. Then, a sequence of register output pulses is generated in response to the clock signals, and register output pulses are chosen from the sequence to select second signal phase outputs. By using 8-second signal phase outputs, a third signal is obtained with a frequency equal to the second frequency multiplied by one of the following numbers: 0.75, 0.875, 1, 1.125, or 1.25.
公开/授权文献
- US20080225989A1 High speed multi-modulus prescalar divider 公开/授权日：2008-09-18
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