公开(公告)号：WO2015183341A1

公开(公告)日：2015-12-03

申请号：PCT/US2014/071196

申请日：2014-12-18

Applicant: CYPRESS SEMICONDUCTOR CORPORATION

Inventor： WANG, Marshall ,  XIE, Miaoxing

IPC: H03L7/06 ,  H03L7/24

CPC classification number: H04L27/2017 ,  H03C3/095 ,  H03C3/0991 ,  H03L7/0891 ,  H04L2027/0018 ,  H04L2027/0053 ,  H04L2027/0065

Abstract: Systems, methods, and devices are disclosed for implementing frequency calibration circuits. The devices may include a data source configured to generate a first data signal based on a first data value and a second data signal based on a second data value. The devices may include a gain control circuit configured to receive the first and second data signals from the data source, and generate a first modified data signal and a second modified data signal. The devices may include an oscillator circuit configured to generate a first output signal and a second output signal based, at least in part, on the first and second modified data signals. The devices may include a calibration circuit configured to determine an adjustment value based on the first and second output signals, and further configured to change a gain of the gain control circuit based on the determined adjustment value.

Abstract translation: 公开了用于实现频率校准电路的系统，方法和装置。 所述设备可以包括被配置为基于第一数据值生成第一数据信号的数据源和基于第二数据值的第二数据信号。 所述装置可以包括被配置为从数据源接收第一和第二数据信号的增益控制电路，并且生成第一修改数据信号和第二修改数据信号。 该装置可以包括被配置为至少部分地基于第一和第二修改数据信号产生第一输出信号和第二输出信号的振荡器电路。 设备可以包括校准电路，其被配置为基于第一和第二输出信号来确定调整值，并且还被配置为基于所确定的调整值来改变增益控制电路的增益。