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Digital Delta-Sigma DAC

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davyzhu

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Hi all,

I want to design a digital delta-sigma DAC. It includes a pulse density modulated module and RC low-pass filter.

The pulse density modulated module is a Delta-Sigma type (one adder and one substractor). But why use Delta-Sigma type (i.e. how to understand it)? Is there any good tutorial on digital Delta-Sigma?

Best regards,
Davy
 

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