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how to start digital design in AD converter

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yyh

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I am an analog designer and have some background in digital design. But I have no idea how to design the digital part in the AD(delta_sigma) converter. Can somebody give me some advice?
Thanks,
YYH
 

A.Anand Srinivasan

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decide when each block must be turned on and design a timing diagram and then design the circuit for it.... for this you would have to fix your clock frequency first...
 

sunjimmy

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Maybe you should start to design your digital part first as a behavior model. Then you should translate your floating point format into fixed-point format. After that, you should divide your behavior model into sub-modules with proper spec and timing information, then you can coding your sub-module based on the spec and timing from previous step. Before doing this, make sure you have simulated the sub-block modules behavior model based on the individual spec and timing you defined.

Hope it helps :)
 

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