VS1003
MP3 / WMA AUDIO CODEC
Features
Decodes MPEG 1 & 2 audio layer III (CBR
+VBR +ABR); WMA 4.0/4.1/7/8/9 all pro-
files (5-384kbps); 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 clock 12..13 MHz.
Internal PLL clock multiplier
Low-power operation
High-quality on-chip stereo DAC with no
phase error between channels
Stereo earphone driver capable of driving a
30Ω load
Separate operating voltages for analog, digital and I/O
5.5 KiB On-chip RAM for user code / data
Serial control and data interfaces
Can be used as a slave co-processor
SPI flash boot for special applications
UART for debugging purposes
New functions may be added with software
and 4 GPIO pins
