发明名称 |
Phase lock loop having switchable filters and oscillators |
摘要 |
A phase lock circuit including a phase/frequency detector, a plurality of selectable filters, and a plurality of variable frequency signal generators connected in a loop to lock an output signal to an input signal. An out-of-frequency-range condition detector is provided to facilitate automatic selection of an appropriate in-range combination of filter and signal generator to cause lock to occur.
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申请公布号 |
US4510461(A) |
申请公布日期 |
1985.04.09 |
申请号 |
US19820401051 |
申请日期 |
1982.07.22 |
申请人 |
TEKTRONIX, INC. |
发明人 |
DICKES, ERIC J.;HILL, III, THOMAS C.;FLEGAL, ROBERT T. |
分类号 |
H03L7/099;H03L7/10;(IPC1-7):H03L7/10 |
主分类号 |
H03L7/099 |
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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