发明名称 |
HIGH RESOLUTION SKEW DETECTION APPARATUS AND METHOD |
摘要 |
A high resolution skew detector including multi-phase input circuitry is disclosed. The input circuitry has a reference signal input and a skew signal input and is adapted for receiving in-phase and/or out of phase skew signals. In response to a control signal, the input circuitry is operative to pass or invert the skew signals. The detector also includes time-to-voltage conversion circuitry having respective first and second inputs for receiving the skewed and reference signals, and a differential amplifier for generating a relative skew signal. The relative skew signal represents the relative skew between the reference signal and the skew signal. Capture circuitry is coupled to the output of the time-to-voltage conversion circuitry for detecting the relative skew signal.
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申请公布号 |
WO0133240(A3) |
申请公布日期 |
2002.01.17 |
申请号 |
WO2000US28999 |
申请日期 |
2000.10.20 |
申请人 |
TERADYNE, INC. |
发明人 |
HAUPTMAN, STEVEN;CHUNG, EDGAR N. |
分类号 |
G01R25/00;G01R31/28;G01R31/317;G01R31/319;G01R31/3193;H01L21/66;(IPC1-7):G01R31/319 |
主分类号 |
G01R25/00 |
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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