发明名称 |
Frequency locked loop, clock recovery circuit and receiver |
摘要 |
A frequency locked loop comprising a controllable oscillator (1) and a control signal generator (2) for generating a control signal (Sc) for the oscillator (1) from a reference signal (Sref) and an output signal (So) from the oscillator (1). The frequency locked loop is characterized in that, the control signal generator (2) comprises a first chain including a high pass filter (21) and a non-linear processing unit (22) for generating a first intermediate signal (S1) from the reference signal (Sref), a second chain including a high pass filter (23) and a non-linear processing unit (24) for generating a second intermediate signal (S2) from the output signal (So) of the controllable oscillator (1), a combination unit (25) for generating a third intermediary signal (S3) from the first (S1) and the second intermediary signal (S2), a low-pass filter (26) for providing the control signal (Sc) in response to the third intermediary signal (S3).
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申请公布号 |
US2004145422(A1) |
申请公布日期 |
2004.07.29 |
申请号 |
US20030479095 |
申请日期 |
2003.11.30 |
申请人 |
SANDULEANU MIHAI ADRIAN TIBERIU |
发明人 |
SANDULEANU MIHAI ADRIAN TIBERIU |
分类号 |
H03L7/113;H03L7/08;H03L7/085;H03L7/087;H04L7/033;(IPC1-7):H03L7/00 |
主分类号 |
H03L7/113 |
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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