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AMC1204 Δ-Σ 调制器的时钟输入

TI工程师:

         您好!

        1、请教在TI推出的 Δ-Σ 调制器如AMC1204,AMC1304等时钟信号都需要外部输入,多占用DSP一个管脚。请问为什么不像AMC1203或者ADI的AD7400A那样,芯片本身提供时钟输出呢?AMC1204,AMC1304这样做有什么好处吗?

2、AMC1204有两种封装,SOIC-8和SOIC-16,功能一样吗?为什么要推出两种封装?