公开(公告)号：US08184761B2

公开(公告)日：2012-05-22

申请号：US11896284

申请日：2007-08-30

申请人： Paavo Väänänen

发明人： Paavo Väänänen

IPC分类号： H03D3/24

CPC分类号： H03D3/241 ,  H03C3/0925 ,  H03C3/0933 ,  H03K5/135 ,  H03K2005/00234 ,  H03L7/087 ,  H03L7/0891 ,  H03L7/093 ,  H03L7/113 ,  H03L7/197 ,  H03L7/1976 ,  H03L7/235

摘要： A method and apparatus for controlling phase locked loop are provided. The apparatus includes a voltage controlled oscillator configured to generate an output signal with a frequency proportional to a control voltage fed into the oscillator. The apparatus also includes an analog loop filter connected to the oscillator and configured to form the control voltage for the oscillator, and a charge pump configured to generate a current pulse into the loop filter. The apparatus includes a phase-frequency detector operationally connected to the charge pump and configured to form waveforms, based on a reference signal and a feedback signal, the feedback signal being proportional to the output signal of the oscillator. The apparatus further includes a controller configured to modulate the feedback signal on the basis of the frequency or phase error of the output signal of the voltage controlled oscillator and the reference signal.

摘要翻译： 提供了一种用于控制锁相环的方法和装置。 该装置包括被配置为产生具有与馈送到振荡器中的控制电压成比例的频率的输出信号的压控振荡器。 该装置还包括连接到振荡器并被配置为形成用于振荡器的控制电压的模拟环路滤波器，以及被配置为将电流脉冲产生到环路滤波器中的电荷泵。 该装置包括可操作地连接到电荷泵并被配置为基于参考信号和反馈信号形成波形的相位频率检测器，反馈信号与振荡器的输出信号成比例。 该装置还包括控制器，其被配置为基于压控振荡器的输出信号和参考信号的频率或相位误差来调制反馈信号。

公开(公告)号：US07148760B2

公开(公告)日：2006-12-12

申请号：US11026560

申请日：2004-12-30

申请人： Paavo Väänänen

发明人： Paavo Väänänen

IPC分类号： H03L7/099

CPC分类号： H03L7/18 ,  H03J7/023 ,  H03J7/065 ,  H03J7/10 ,  H03J2200/10 ,  H03J2200/29 ,  H03J2200/36 ,  H03L7/099

摘要： This invention describes a method for gain tuning of a voltage-controlled oscillator of a phase locked loop (PLL) of an electronic device using voltage measurements and a frequency iteration. The invention presents a method of minimizing integrated VCO gain variations. More specifically, the invention implementation is based on an analysis which includes changing the VCO frequency by iteration steps and optionally calculating said iteration steps and measuring a gain of said voltage controlled oscillator (VCO) at said frequencies changed by the iteration steps, wherein the analysis is based on a predetermined criterion. The present invention can be used in any radio architecture that requires limiting of the VCO gain variation and tuning its center frequency.

摘要翻译： 本发明描述了一种使用电压测量和频率迭代对电子设备的锁相环（PLL）的压控振荡器进行增益调谐的方法。 本发明提出了一种使集成VCO增益变化最小化的方法。 更具体地说，本发明实现是基于一种分析，其包括通过迭代步骤改变VCO频率，并且可选地计算所述迭代步骤并且在由迭代步骤改变的所述频率处测量所述压控振荡器（VCO）的增益，其中分析 基于预定标准。 本发明可以用于需要限制VCO增益变化并调整其中心频率的任何无线电架构中。