作者: John L. Melanson
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摘要: A signal processing system includes an analog-to-digital delta sigma modulator with a duty cycle and finite impulse response (FIR) filter in main loop feedback path of the modulator. The FIR can provide high performance filtering path. To prevent instability caused by filter, also stabilizer loop. Transfer functions combine to achieve target transfer function for that provides stable operation In at least one embodiment, output data directly integrator filter.