公开(公告)号：US08958513B1

公开(公告)日：2015-02-17

申请号：US13837864

申请日：2013-03-15

Applicant: Xilinx, Inc.

Inventor： Paolo Novellini ,  Martin J. Kellermann

IPC: H04L7/00 ,  H04L7/033

CPC classification number: H04L7/0337 ,  H03L7/104 ,  H04L7/0338 ,  H04L7/046 ,  H04L7/10

Abstract: A device and method for clock and data recovery are disclosed. For example, an integrated circuit comprises a first branch for recovering a clock signal from an input signal. The first branch includes a phase and frequency detector for detecting a phase and a frequency of the clock signal and a numerically controlled oscillator that is controlled by the phase and the frequency of the clock signal from the phase and frequency detector. The integrated circuit also includes a second branch for recovering a data signal from the input signal. The second branch includes a pre-settable numerically controlled oscillator that is pre-settable with the phase and the frequency of the clock signal from the numerically controlled oscillator. The second branch also includes a sample selector that is controlled by the pre-settable numerically controlled oscillator for recovering the data signal.

Abstract translation: 公开了一种用于时钟和数据恢复的装置和方法。 例如，集成电路包括用于从输入信号恢复时钟信号的第一分支。 第一分支包括用于检测时钟信号的相位和频率的相位和频率检测器以及由相位和频率检测器的时钟信号的相位和频率控制的数控振荡器。 集成电路还包括用于从输入信号中恢复数据信号的第二分支。 第二分支包括一个可预置的数控振荡器，可以用来自数控振荡器的时钟信号的相位和频率进行预设。 第二分支还包括由可预先设定的数控振荡器控制的采样选择器，用于恢复数据信号。