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CDCI6214: CDCI6214 pin XOUT/FB_P 问题

dana tu
Prodigy 40 points
Part Number: CDCI6214


Could you please help me to check which PIN ( XIN or XOUT ?) should be used as the  LVCOMOS  clock input?  

Usually , should be XIN,  But from the datasheet,  It seems that XOUT is used

  • 0
    TI__Guru**** 295050 points

    您好，看下引脚定义，XOUT/FB_P是LVCMOS输入引脚，没问题。XIN是crystal输入，而XOUT/FB_P是多路复用引脚，可以是crystal output，还可以是LVCMOS或者是差分输入的正相端，上图Figure3 是作为LVCMOS输入引脚。