发明名称 |
Phase-locked loop with charge distribution |
摘要 |
According to the preferred embodiment, an improved feedforward path is provided that improves the frequency response and reduces the output jitter of a phase-locked loop. Specifically, the frequency response is improved by providing a zero in the frequency response of the phase-locked loop by means of a feedforward path. The feedforward path delivers a feedforward charge to the oscillator of the phase-locked loop. According to the preferred embodiment, the feedforward path reorders the feedforward charge, such that the feedforward charge is stored and distributed equally across all the phase-locked loop output signal sub-cycles.
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申请公布号 |
US5724008(A) |
申请公布日期 |
1998.03.03 |
申请号 |
US19960641862 |
申请日期 |
1996.05.02 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
FERRAIOLO, FRANK DAVID;GERSBACH, JOHN EDWIN;MASENAS, CHARLES JOSEPH |
分类号 |
H03L7/089;H03L7/093;H03L7/183;(IPC1-7):H03L7/093 |
主分类号 |
H03L7/089 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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