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发表于 2009-3-4 15:53:37
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原帖由 tigeratzoo 于 2009-3-1 00:20 发表 不敢苟同,sigma-delta ADC还是比sigma-delta DAC相对难一点
hmm... it depends on which part you are talking about.  In a delta sigma ADC, a lot of nonidealities in analog circuit do not affect the performance ( or at least much less compares to Nyquist rate ADC), but for delta sigma DAC, the analog part is much harder.  For example, a headphone driver, you need to design a high gain opamp (>96dB for a 16 bits DAC) at the same time drive 32 ohm load.
[ 本帖最后由 eyetolisten 于 2009-3-4 15:55 编辑 ] |
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