摘要
过取样∑△转换技术已广泛用于音频范围高辨率A/D、D/A转换,并为效率高的信号处理方式提供了令人感兴趣的好处。本文将评述这一技术的发展和基本方法,指出其应用前景和发展方向。
Oversampling sigma-delta conversion technology is widely used for high-resolution A/D and D/A conversion in the audio frequency band, and also gives interesting advantages in efficient signal processing. This paper reviews the development and basic methods of the technology. The prospects of application and the ways of development are also discussed.
基金
国家自然科学基金
关键词
过取样
噪声整形
Σ△调制器
集成电路
Oversampling, Noise shaping, ∑Δ modulators, A/D D/A converters, Integrated circuits
