发明名称 |
Methods and apparatus for a terminated fail-safe circuit |
摘要 |
An active fail-safe method and apparatus for a LVDS receiver that uses a window comparator circuit to monitor the differential voltage at the receiver's input pins and drive the output to a known logic HIGH state in the absence of a valid input signal; i.e., when the input differential signal is less than a chosen threshold value of approximately 80 mV. Such a condition may occur when the cable is removed or damaged in such a way that no valid input signal is present. In the presence of a valid input signal, the circuit's output tracks the differential input without any degradation to the signal.
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申请公布号 |
US6320406(B1) |
申请公布日期 |
2001.11.20 |
申请号 |
US20000677340 |
申请日期 |
2000.10.02 |
申请人 |
TEXAS INSTRUMENTS INCORPORATED |
发明人 |
MORGAN MARK W.;CARVAJAL FERNANDO D.;GINGERICH KEVIN J. |
分类号 |
H03K5/1252;H03K19/007;H04L25/08;(IPC1-7):H03K9/007 |
主分类号 |
H03K5/1252 |
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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