ADS5404的时钟电平要求为如下:
这么高的标称值该使用什么电平的时钟芯片提供呢?LVDS和LVPECL的摆幅都应该达不到吧?
为什么手册后面又说可以使用LVDS或LVPECL的时钟源头呢?推荐什么电平呢?
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看手册20页有描写对时钟的要求
The ADS5404 clock input can be driven differentially with a sine wave, LVPECL or LVDS source with little or no
difference in performance
建议用jitter clean的时钟芯片产生时钟。比如LMK04808系列