Design procedures of charge pump PLLs for jitter transfer characteristic optimization Decide the maximum tolerated jitter peaking and find capacitance ratio m using JP(m). Use ξm(m) to find the optimal damping ratio value ξm; Decide ωn according to the application, choose reasonable KVCO, an...
锁相环 PLL 第6讲 曲径通幽 Charge-Pump PLLs, 视频播放量 9100、弹幕量 13、点赞数 259、投硬币枚数 238、收藏人数 90、转发人数 8, 视频作者 鳌中堂讲电路, 作者简介 全世界电路爱好者,联合起来! Electronics workers of all lands, unite!,相关视频:锁相环 PLL 第4讲
PLL-charge pump
Charge Pump PLL1
The Charge Pump PLL (phase-locked loop) block automatically adjusts the phase of a locally generated signal to match the phase of an input signal. It is suitable for use with digital signals. This PLL has these three components: A sequential logic phase detector, also called a digital phase...
该文提出一种16 GHz电荷泵锁相环(CP-PLL),用于产生鲁棒占空比调频连续波(FMCW)雷达线性调频。引入了占空比 (DC) 方案以降低整体功耗。为了实现快速启动和快速锁定,设计了一种两点调制的CP-PLL频率调制器。为了实现两点增益失配校准,该文探讨了一种时域符号提取技术。对于 1.5GHz 线性调频带宽,16GHz 线性调频发生器...
charge-pump电路仿真要点: (1)DC 输出范围(Vtune范围) (2)电流mismatching,PVT和MC仿真;、 (3)输出电流phase noise; 两篇论文都是该领域的经典,charge-pump电流是模拟锁相环系统的关键模块,影响PLL带内噪声,尤其是小数/参考杂散的大小。数字锁相环中该模块被TDC替代,TDC的精度与charge-pump的电流失配一样,决定...
【锁相环PLL】2.1.4 Charge Pump PLL Transfer Function【锁相环PLL】2.1.4 Charge Pump PLL Transfer F大马庆编辑于 2024年12月04日 18:09 11:20 超简单的PFD&CP传输函数 CP的输出阻抗看作Z1 那么整个PFD&CP的传输函数就再乘以Icp/2π 13:55 BW<Fref/10 由于前面用连续信号Vcont代替了离散的充电pulse...
A charge pump has a reference stage that simulates the output stage of the paths, at least in terms of the output-side transistors of the paths. An equivalent symmetrical current is generated on a reference stage. The equivalent symmetrical current replicates the fault current and controls a ...
A charge pump circuit for stable latching in of a PLL requires a zero net charge transfer from the charge pump (CP) into the low-pass loop filter (LF) during a reference cycle, in order to set a stable control voltage (V tune) for the voltage controlled oscillator (VCO). The charge ...