VS1003B

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