摘要简要分析sigma-delta(Σ-Δ)架构模数转换器(ADC)原理,提出一种基于FPGA内部LVDS(Low Voltage Differential Signaling)接收器的音频ADC架构,并给出在FPGA上的实现结果。在FPGA内部实现音频ADC,具有扩展方便灵活,实现简单,集成度高等优点。
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