公开(公告)号：US20130271229A1

公开(公告)日：2013-10-17

申请号：US13861125

申请日：2013-04-11

Applicant: MARVELL WORLD TRADE LTD

Inventor： Xiang GAO ,  Chi-Hung Lin ,  Li Lin

IPC: H03L7/06

CPC classification number: H03L7/06 ,  H03L7/23

Abstract: Aspects of the disclosure provide a local oscillator (LO) circuit that includes a first phase locked loop (PLL) circuit and a second PLL. The first PLL circuit is configured to generate a first oscillation signal having a first frequency based on a reference signal having a reference frequency. The second PLL circuit is configured to receive the first oscillation signal and generate a second oscillation signal having a second frequency based on the first oscillation signal.

Abstract translation: 本公开的方面提供了包括第一锁相环（PLL）电路和第二PLL的本地振荡器（LO）电路。 第一PLL电路被配置为基于具有参考频率的参考信号产生具有第一频率的第一振荡信号。 第二PLL电路被配置为接收第一振荡信号并且基于第一振荡信号产生具有第二频率的第二振荡信号。