我仿真了下,给信号输出端频率20k---120k,幅值问500u---2.6mv的正弦信号,经过模拟前端带通滤波输出的波形才不失真。1、请问我给的信号对吗?我对直流电弧信号是什么样的还不清楚。2、我仿了一下板子上的自检信号部分,按键闭合U4A出口侧用示波器看不出噪声信号波形?3、按下自检噪声按键,可以在AD转换前端看到自检噪声的波形吗? 谢谢大家,我想想没有可以贴的图。@TI员工
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