VS1003 是一个单片MP3/WMA/MIDI音频解码器和ADPCM编码器。它包含一个高性能，自主产权的低功

耗DSP 处理器核VS_DSP4,工作数据存储器，为用户应用提供5KB 的指令RAM 和0.5KB 的数据RAM。

串行的控制和数据接口，4 个常规用途的I/O 口，一个UART，也有一个高品质可变采样率的ADC和立体

声DAC，还有一个耳机放大器和地线缓冲器。-The VS1003 is a the monolithic MP3/WMA/MIDI audio decoder and ADPCM encoder. It contains a high-performance, independent property rights, low-power DSP processor core VS_DSP4 working data memory, the 5KB instruction RAM and 0.5KB of data RAM for user applications. Serial control and data interface, four general-purpose I/O port, a UART, a high-quality variable sampling rate ADC and stereo DAC, as well as a headphone amplifier and a ground buffer.