请教一下,最近在选DAC,假如一款四通道dac是2MSPS,那么我用来生成四通道输出的50kHz正弦波,每个波形是否是由2M/4/50k=10个点拟合? 假如我只用到2个通道,频率不变的话拟合点数是否会变成20个,或者拟合点数不变,频率翻倍? 多谢
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这个要看具体的芯片是4:1MUX+DAC还是4个独立DAC的结构。
如果是独立的4个DAC,那么每个通道就是2M的采样率。