This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

cdce62005 25M晶振不起振

Other Parts Discussed in Thread: CDCE62005

自己设计的6678原理图,FPGA+DSP6678,FPGA控制6678上电,DSP时钟CDCE62005提供,由外接参考时钟25M晶体提供大体原理是参考开发板设计,相关电路也是采用开发板设计,PD管脚悬空。通过软件工具和手册配置了cdce62005寄存器输出100M和125M,现象是所有输出均没有,PLL_LOCK长低;经测量电源均正常;

寄存器0的值为 EB060320 ,

寄存器1的值为 EB060301  ,

寄存器2的值为 EB060302 ,

寄存器3的值为 EB060303 ,

寄存器4的值为 EB040314,

寄存器5的值为 10000B25  ,

寄存器6的值为 34CE03E6,

寄存器7的值为 95887A47  ,

寄存器8的值为 80009D98 ,

寄存器9的值为 0000001F;