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楼主你好!
1、测试方法:请使用示波器原装的X10档探头来测试,X1档的带宽较窄。不能使用普通的红黑鳄鱼夹的探头线。
2、限制带宽的还有一个指标,就是放大器的输入输出压摆率。压摆率不够的表现是在幅值较大的时候带宽不足。