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Stabilized noise shaper of a small scale having a suppressed quantization noise in high frequency region without deteriorating S/N ratio
Stabilized noise shaper of a small scale having a suppressed quantization noise in high frequency region without deteriorating S/N ratio
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机译:在不降低信噪比的情况下,在高频区域抑制量化噪声的小规模稳定噪声整形器
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摘要
In a noise shaper comprising integrators of three or more stages, a quantizer and a feedback circuit, there are provided a circuit for subtracting from an output of each of the integrators a result obtained by delaying the output of the same integrator by one sample and multiplying it by a constant number, so as to output the result of the subtraction to an integrator at the subsequent stage, and a circuit for feeding back a result obtained by delaying an output of the quantizer by one sample and multiplying it by any constant number value, to an input of each of the integrators.
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