VS1003 - ETC

VS1003 MP3/WMA AUDIO CODEC

VS1003 is a single-chip MP3/WMA/MIDI audio decoder and ADPCM encoder. It contains a high-performance, proprietary low-power DSP processor core VS_DSP4, working data memory, 5 KiB instruction RAM and 0.5 KiB data RAM for user applications, serial control and input data interfaces, 4 general purpose I/O pins, an UART, as well as a high-quality variablesample-r.

Features

• Decodes MPEG 1 & 2 audio layer III (CBR +VBR +ABR); WMA 4.0/4.1/7/8/9 all profiles (5-384kbit/s); WAV (PCM + IMA ADPCM); General MIDI / SP-MIDI files
• Encodes IMA ADPCM from microphone or line input
• Streaming support for MP3 and WAV
• Bass and treble controls
• Operates with a single 12..13 MHz clock
• Internal PLL clock multiplier
• Low-power operation
• High-quality on-chip stereo DAC with no phase error between channels
• Stereo earphone driver capable of driv- ing a 30Ω load
• Separate operating voltages for analog, digital and I/O
• 5.5 KiB On-chip RAM for user code / data
• Serial con.