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The reason I said signed number, is that as long as I know we leverage the 2's complement wrap around in integrator sections to avoid overflow problem. I don't know how can we do it with unsigned number.
Also if we do not convert 0 to -1, there will be no subtraction in integrator...
I want to design a CIC decimation filter for a 3rd-order sigma-delta modulator with single-bit quantization.*As we know, CIC filter need's 2's complement arithmetic. Let's assume I need 16 bits internal word length for correct operation.
Now my question is, do I need to convert my...