公开(公告)号：US09148192B1

公开(公告)日：2015-09-29

申请号：US13962468

申请日：2013-08-08

Applicant: Xilinx, Inc.

Inventor： Alan C. Wong ,  Christopher J. Borrelli ,  Loren Jones ,  Seu Wah Low ,  Parag Upadhyaya ,  Robert M. Ondris ,  Sarosh I. Azad

IPC: H04B1/40

CPC classification number: H04L25/14

Abstract: An apparatus relating generally to a transmitter-side of a transceiver or a transmitter used to provide a clock signal is disclosed. In this apparatus, a first signal source is to provide a first periodic signal. A second signal source is to provide a second periodic signal. A first multiplexer is coupled to receive the first periodic signal and the second periodic signal to provide a selected one thereof as a first selected output. A phase interpolator is coupled to the first multiplexer to receive the first selected output. The phase interpolator includes a second multiplexer. The second multiplexer is coupled to receive the first selected output and a phase-interpolated version of the first selected output to output a selected one thereof as a second selected output. A divider is coupled to the second multiplexer to receive the second selected output to provide the clock signal.

Abstract translation: 公开了一种与用于提供时钟信号的收发机或发射机的发射机侧有关的装置。 在该装置中，第一信号源是提供第一周期信号。 第二信号源是提供第二周期信号。 第一多路复用器被耦合以接收第一周期性信号和第二周期信号，以将其选定的一个作为第一选择输出。 相位插值器耦合到第一多路复用器以接收第一选择的输出。 相位插值器包括第二多路复用器。 第二多路复用器被耦合以接收第一选择输出和第一选择输出的相位插值版本，以将其选定的一个输出作为第二选择输出。 分频器耦合到第二多路复用器以接收第二选择的输出以提供时钟信号。