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AFE7070应用咨询

Other Parts Discussed in Thread: AFE7070

你好,

我咨询下AFE7070芯片中数模转换器的一个问题: 我们一个项目需要AFE7070中DAC输出一个中频带宽信号f0±1MHz,中频频率f0=20MHz,带宽B=2MHz。但是我看到芯片资料说明中DAC后边的 基带滤波器只有4阶,会不会带外抑制不够,最后影响RF输出的信号指标。这种情况下,中频频率f0最好设置在一个什么范围?