The VS1011 single-chip MP3 audio decoder from VLSI  contains a high-performance, low-power DSP processor core VS DSP4, working data memory, 5.5kBytes of program or data RAM for user applications, serial control and input data interfaces, and a high-quality oversampling variable-sample-rate stereo DAC. 
This is the popular VS1011 single-chip MP3 audio decoder from VLSI is easy to solder SOIC package!
It contains a high-performance, low-power DSP processor core VS DSP4, working data memory, 5.5kBytes of program or data RAM for user applications, serial control and input data interfaces, and a high-quality oversampling variable-sample-rate stereo DAC.