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Stable high-order delta-sigma error feedback modulators, and noise transfer functions for use in such modulators
Stable high-order delta-sigma error feedback modulators, and noise transfer functions for use in such modulators
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机译:稳定的高阶delta-sigma误差反馈调制器以及用于此类调制器的噪声传递函数
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摘要
Stable, robust, and high-resolution delta-sigma error feedback modulators, such as those used in digital-to-analog converters and phase-locked loops, include an L-order noise transfer function that is provided with L+1 high-order bits from a truncation element. The stability of such delta-sigma error feedback modulators is independent of the input signal. Moreover, the out-of-band gain of the noise transfer function need not be limited, which improves the resolution and the signal-to-noise ratio of the in-band signal.
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