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Description

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_DSP 4, 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 variable sample-rate mono ADC and stereo DAC, followed by an earphone amplifier and a common buffer.

Features

1. Decodes MPEG 1 & 2 audio layer III (CBR +VBR +ABR); WMA 4.0/4.1/7/8/9all profiles (5-384kbit/s); WAV (PCM + IMA ADPCM); General MIDI / SP-MIDI files

2. Encodes IMA ADPCM from microphone or line input

3. Streaming support for MP3 and WAV

4. Bass and treble controls

5. Operates with a single 12..13 MHz clock

6. Internal PLL clock multiplier

7. Low-power operation