Clock data recovery device and recovery method

The invention discloses a clock data recovery device and a recovery method. the clock data recovery device comprises a clock generator, a delay adjustment device and a sampling device, wherein the clock generator is used for receiving input data containing clock information, and based on the input data, clock signals are generated; the delay adjustment device is used for delaying the input data according to the relationship between a sampling edge of one clock signal and a clock edge in the input data to enable the sampling edge of one clock signal to fall in a clock sampling range of the input data; and the sampling device is used for carrying out data recovery on the delayed input data according to the clock signals to obtain output data. Adaptive adjustment on data delay can be realized, the sampling accuracy is thus improved, and the cost is saved. 种时钟数据恢复装置和方法，所述时钟数据恢复装置包括：时钟发生装置，用于接收包含时钟信息的输入数据，基于所述输入数据产生时钟信号；延迟调整装置，用于根据时钟信号之的采样边沿与输入数据中的时钟沿之间的关系来对输入数据进行延迟，使得所述时钟信号之的采样边沿落入输入数据的时钟采样范围内；以及采样装置，用于根据所述时钟信号对延