Texas Instruments Corporation

Jim Wieser

Vijaya G Ceekala

Robert Karl Butler

A cable detector includes one or more peak detectors that detect when a termination impedance is missing from the output of a line driver. A peak detection signal is asserted when signals on a transmission line exceed a threshold level. A fault condition is asserted when the peak detection signal is asserted for a sufficient length of time to indicate that an actual fault is detected. The time period required for detecting a lost or missing line termination is longer than the time periods for any one of the pathological conditions to avoid a false positive detection. After the peak detection signal is de-asserted, the fault condition will be maintained until another sufficient length of time has expired without a peak detection.

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Pleasanton, CA, United States of America

Jim Wieser