CKC & Partners Co., Ltd.
Unlock detector, unlock-detecting method and clock and data recovery circuit
An unlock detector includes a checker, an accumulator, and a comparator. The accumulator is electrically connected to the checker, and the comparator is electrically connected to the accumulator. The checker includes several checking units. The checker is configured to receive a sampled data signal and a sampled edge signal, and to check the sampled data signal and the sampled edge signal via the checking units to generate several checking results. The accumulator is configured to generate a counting value in a manner of counting according to the checking results. The comparator is configured to compare the counting value with a threshold to generate an unlock-detecting result.
TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD. GLOBAL UNICHIP CORPORATION
H H H H H H H H
H04L H03L H03L H04L H04L H04L H03L H03K
inventional inventional additional inventional inventional additional inventional inventional
Wen-Juh Cheng-Hung Yu-Chu
Kang Wu Chen