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7 个月
一个Σ-Δ ADC中不会写出来的参数:OSR(最小过采样率)
在 Σ-Δ ADC 中,“最小过采样率(Minimum Oversampling Ratio,OSR)”是指系统为了达到有效的噪声整形效果、滤除量化噪声而要求的最小采样倍率,当然了这个写的有些绝对了。 最小 OSR 是指调制器输出频谱中量化噪声尚未淹没在有用信号频带中的最小采样倍率。
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