发明名称 |
Squelch circuitry for high speed high frequency operation |
摘要 |
A squelch circuit for operating at high speed and at high frequencies includes a squelch input unit, a low swing pre-amplifier and a sampling and decision circuit. The squelch input unit pre-processes the positive and negative signals of an input signal to generate four pre-processed signals that are paired and sent to the low swing pre-amplifier. The outputs of the low-swing pre-amplifier are then over-sampled by the sampling and decision circuit. Multi-phase clocks are used to control the over-sampling in the sampling and decision circuit. A logic circuit then determines if the state of the input signal based on multiple samples.
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申请公布号 |
US2004120389(A1) |
申请公布日期 |
2004.06.24 |
申请号 |
US20020327271 |
申请日期 |
2002.12.20 |
申请人 |
WU CHING-LIN;LIU HSIEN-FENG;LIU HUNG-CHIH |
发明人 |
WU CHING-LIN;LIU HSIEN-FENG;LIU HUNG-CHIH |
分类号 |
H03G3/34;(IPC1-7):H04L25/00;H04L27/00 |
主分类号 |
H03G3/34 |
代理机构 |
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代理人 |
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主权项 |
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