您好,最近在做一个射频信号源,用到LMX2581,有以下几个问题不明白:
首先,LMX2581的操作借口是uWire(microwire),想问着操作时序和SPI通用吗,而LMX2592的手册里明确的说明可以是SPI,但对于LMX2581,是否是LE引脚就是 SPI的片选型号啊?
其次,针对环路滤波器参数的选取,按照TI提供的设计软件来,如果要做成输出频率是步进的,是否在每一步步进时,环路滤波器的参数还需要修改?
谢谢
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2581的接口是uwire接口。你按照手册的figure1 Serial Data Input Timing接口时序就可以了。
LE就是uwire 的片选的