VS1003 is a versatile slave MP3 and WMA decoder chip, replacing the discontinued VS1002. It can record wideband speech quality audio and play MIDI either from files or using a standard serial MIDI keyboard with the Real-Time MIDI Input Application. Many wide-ranging applications have been developed for this IC that has sold more than 5 million units.

·                  Decodes MP3 (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

·                  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 driving a 30­ ohm 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

LQFP48 7x7x1.4mm

BGA49 7x7x1.4mm