The fractional n phase lock loop of ring oscillator provides the reference signal that an oscillator signal is substantially greater than reference frequency in clock frequency for receiving proportional signal and integrated signal. Data input for receiving data to frequency control word converter and ...
这种情况肯定要做CDC。PLL最后COUNT出来的时钟原则上相位会比较相同，你可以设置PLL来达到。但是这只是PLL...
清华PLL讲义
职责描述: 1、根据项目要求规划芯片时钟产生及分布方案; 2、模拟时钟IP核设计: 3、设计高性能PLL,DLL,熟悉PLL、DLL设计原理; 4、设计GPLL,熟悉音视频时钟恢复原理; 5、设计ANACDR,熟悉CDR及PbossAM4工作原理; 6、设计高BOSS直聘速高性能时钟 相位混频器; 7、设计高速LC OSC; 8、根据项目要求分配设计指标,选取...
文献［2-3暂给岀了锁相环和CDR电路的VerilogA模型，但未能良好地利用锁相环VerilogA模型去指导实际电路设计，如无法用模型对实际电路的低噪声设计做岀指导。高分频比的电路级锁相环由于收敛性的问题通常无法直接进行相位噪声仿真，并且电路级输岀波形仿真需要极长时间，环路带宽的确定需要多次的输岀波形仿真,导致设计...
pll一般就三个用处，一个是做wireless的频综（本振），一个是做wireline的频综/cdr，一个是做数字系统...
职责描述: 1、根据项目要求规划芯片时钟产生及分布方案; 2、模拟时钟IP核设计: 3、设计高性能PLL,DLL,熟悉PLL、DLL设计原理; 4、设计GPLL,熟悉音视频时钟恢复原理; 5、设计ANACDR,熟悉CDBOSS直聘R及PAM4工作原理; 6、设计高速高性能时钟 相位混频器; 7、设计高速LC OSC; 8、根据项目要求分配设计指标,选取设计...
CDR,BBU,RRU,TEST,SDH,SONET,WIRELESS INFRASTRUCTURE,背板,路由器,ROUTER,MICROWAVE BACKHAUL,千兆以太网卡,数据中心,STORAGE,BACKPLANES,SWITCH,仪表,OTN EQUIPMENT,服务器,DATA CONVERTERS,BROADCAST VIDEO,数据转换器,BTS,AAUS,OTN设备,微波回程,INSTRUMENTATION,分配数量单位,PTN,SMALL CELLS,DATA CENTER,同步光纤网,...
This CDR will be able to track low frequency jitter, sometimes referred to as wander in this context, however high frequency jitter will be outside the bandwidth of the CDR and cannot be tracked out. 3. Random and Deterministic Jitter When measuring jitter, it is important to consider the ...
The author describes a clock and data recovery circuit (CDRC) designed as the key function in an interface integrated circuit to support a fiber-optic local area network-the fiber distributed data interface (FDDI). A crystal-based dual PLL (phase-locked loop) locks to 125 Mb/s NRZI (nonre...