摘要
设计一种改进型盲过采样时钟数据恢复电路。电路主要由并行过采样、滤波整形、鉴相编码和数据选择等模块组成。提出的滤波整形电路可以有效改善采样数据流,让电路拥有更高的抑制噪声和干扰的能力。与鉴相编码电路组合工作,可以使整个时钟数据恢复电路的误码率更低,相位锁定时间更短。
This is a improved blind oversampling clock and data recovery circuit. The circuit mainly contains parallel oversampling module, filtering and shaping circuit, phase detector and encoding circuit, data selection module. The filtering and shaping circuit can effectively improve the mutations in the sampling data stream, so that the circuit has a higher ability to suppress noise and disturbing, combined with phase detector and encoding circuit, the clock and data recovery circuit can get a lower BER and shorter phase-locking time.
出处
《电子与封装》
2017年第12期23-25,共3页
Electronics & Packaging
关键词
盲过采样
时钟数据恢复
鉴相编码电路
blind oversampling
clock and data recovery（ CDR）
phase detector and encoding circuit
