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CONTINUOUS TIME LINEAR EQUALIZATION (CTLE) ADAPTATION ALGORITHM ENABLING BAUD-RATE CLOCK DATA RECOVERY (CDR) LOCKED TO CENTER OF EYE
CONTINUOUS TIME LINEAR EQUALIZATION (CTLE) ADAPTATION ALGORITHM ENABLING BAUD-RATE CLOCK DATA RECOVERY (CDR) LOCKED TO CENTER OF EYE
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机译:连续时间线性均衡(CTL)适应算法,使波特率时钟数据恢复(CDR)锁定在眼中
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摘要
Apparatus and associated methods relate to adapting a continuous time linear equalization circuit with minimum mean square error baud-rate clock and data recovery circuit to be able to lock to the center or near center of an eye diagram. In an illustrative example, a circuit may include an inter-symbol interference (ISI) detector configured to receive data and error samples, a summing circuit coupled to the output of the ISI detector, a moving average filter configured to receive the output of the summing circuit and generate an average output, a voter configured to generate a vote in response to the average output and a predetermined threshold, and, an accumulator and code generator configured to generate a code signal in response to the generated vote. By introducing the moving average filter and the voter, a quicker way to lock to the center or near center of an eye diagram may be obtained.
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