说明：  芯片PCM1808是低成本、高性能、单芯片的立体声模拟—数字转换器，拥有单端模拟电压输入。这是pcm1808的英文数据手册以及中文翻译。
(Chip PCM1808 stereo analog low-cost, high-performance, single-chip- digital converter with a single-ended analog voltage input. This data sheet is pcm1808 English and Chinese translations.)