发明名称 |
Circuit for synchronizing an oscillator to a pulse train |
摘要 |
In an arrangement comprising a phase control circuit the phase comparator, when receiving input pulses with which the clock pulses are in phase, will produce an output signal having a pulse frequency which is twice the pulse frequency of the input pulses. The ripple on the control-voltage for the oscillator to be controlled resulting therefrom is compensated for by adding to the output signal of the phase detector a signal which is opposite in phase to the output signal. The result is that only frequency- and phase errors produce a ripple (change) on the output signal.
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申请公布号 |
US4689577(A) |
申请公布日期 |
1987.08.25 |
申请号 |
US19850735901 |
申请日期 |
1985.05.20 |
申请人 |
U.S. PHILIPS CORPORATION |
发明人 |
VREEKEN, ROELOF;DE NIET, EDMOND;RIJCKAERT, ALBERT M. A. |
分类号 |
H03K5/26;H03L7/085;H03L7/089;(IPC1-7):H03K5/22 |
主分类号 |
H03K5/26 |
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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