发明名称 |
Methods and apparatus for spread spectrum generation using a voltage controlled delay loop |
摘要 |
Methods and apparatus are provided for generating a frequency with a predefined offset from a reference frequency. A spread spectrum generator circuit is disclosed that comprises a voltage controlled delay loop for generating a plurality of signals having a different phase; and at least one interpolator for processing at least two of the signals to generate an output signal having a phase between a phase of the at least two of the signals, wherein the output is varied between a phase of the at least two of the signals to generate the spread spectrum. A spread spectrum having a frequency lower than an applied clock signal is generated using a continuous phase delay increase and a spread spectrum having a frequency higher than the clock signal is generated using a continuous phase delay decrease.
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申请公布号 |
US2006268958(A1) |
申请公布日期 |
2006.11.30 |
申请号 |
US20050141695 |
申请日期 |
2005.05.31 |
申请人 |
SINDALOVSKY VLADIMIR;SMITH LANE A;ZIEMER CRAIG B |
发明人 |
SINDALOVSKY VLADIMIR;SMITH LANE A.;ZIEMER CRAIG B. |
分类号 |
H04B1/00 |
主分类号 |
H04B1/00 |
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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