CAJ | 학술논문

首先分析了便携式M P3播放器的工作原理及其系统构成，接着介绍了一种基于51单片机的M P3播放器设计方案。采用AT89C51SND1C单片机，其片内集成了 MP3解码器，使用 K9F1208闪存作为外存储器，放音电路采用CS4330，音乐文件通过播放器上的U SB接口从PC机上直接下载。该方案设计简单，性价比高、低功耗、易扩展。
수선분석료편휴식M P3파방기적공작원리급기계통구성，접착개소료일충기우51단편궤적M P3파방기설계방안。채용AT89C51SND1C단편궤，기편내집성료 MP3해마기，사용 K9F1208섬존작위외존저기，방음전로채용CS4330，음악문건통과파방기상적U SB접구종PC궤상직접하재。해방안설계간단，성개비고、저공모、역확전。
A MP3 player design scheme based on 51 microcontroller is proposed after analyzing the working principle and system compo‐sition of the portable MP3 player .The design uses the AT89C51SND1C microcontroller as the MP3 decoder ,the K9F1208 flash as exter‐nal memory ,the CS4330 as the sound playing circuit .The music file can be downloaded from PC through USB interface of the player .The scheme is simple ,cost‐effective ,low power consumption and easy to expand .