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关于DA的模拟与数字电源

Other Parts Discussed in Thread: DAC7554

想用DAC7554,但是发现它不区分模拟与数字部分。

注意到,涉及电源的端口只有VDD与GND,这意味该芯片的输出VOUTA~D都是基于数字地GND的模拟信号,像这样模拟与数字混用,输出的信号质量靠谱吗?