你们好,我们使用LMK04821输出LVPECL20的2GHz的时钟输出幅度仅有500mV左右,但是数据手册上LVPECL20的幅度应该有960mV左右,请问这是什么原因呢。有什么办法可以增大时钟幅度呢?
时钟输出的外围电路如上图所示。
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