MP3 and MIDI Codec - VS1053B

Product Description

Description:VS1053b from VLSI is a single-chip Ogg Vorbis/MP3/AAC/WMA/MIDI audio decoder and an IMA ADPCM and user-loadable Ogg Vorbis encoder. It contains a high-performance, proprietary low-power DSP processor core VS DSP4, working data memory, 16 KiB instruction RAMand 0.5+ KiB data RAM for user applications running simultaneously with any built-in decoder, serial control and input data interfaces, upto 8 general purpose I/O pins, an UART, as well as a high-quality variable-sample rate stereo ADC (mic, line, line + mic or 2×line) and stereo DAC, followed by an earphone amplifier and a common voltage buffer.



VS1053b receives its input bitstream through a serial input bus, which it listens to as a system slave. The input stream is decoded and passed through a digital volume control to an 18-bit over-sampling, multi-bit, sigma-delta DAC. The decoding is controlled via a serial control bus. In addition to the basic decoding, it is possible to add application specific features, like DSP effects, to

the user RAM memory.



Available in a LQFP-48 pin 7x7x1.4mm package.



Features:

• 
  Decodes multiple formats: Ogg Vorbis, MPEG 1 & 2 audio layer III (CBR+VBR+ABR), layers I & II optional, MPEG4 / 2 AAC-LC(+PNS), HE-AAC v2 (Level 3) (SBR + PS), WMA4.0/4.1/7/8/9 all profiles (5-384 kbps), WAV (PCM + IMA ADPCM), General MIDI 1 / SP-MIDI format 0


• 
  Encodes two different formats: from mic/line in mono or stereo Ogg Vorbis with software plugin, IMA ADPCM


• 
  Streaming support


• 
  EarSpeaker Spatial Processing


• 
  Bass and treble controls


• 
  Operates with a single 12-13 MHz or 24-26 MHz clock


• 
  Internal PLL clock multiplier


• 
  Low-power operation


• 
  High-quality on-chip stereo DAC with no phase error between channels


• 
  Zero-cross detection for smooth volume change


• 
  Stereo earphone driver capable of driving a 30­ ohm load


• 
  Quiet power-on and power-off


• 
  I2S interface for external DAC


• 
  Separate voltages for analog, digital, I/O


• 
  16.5 kiB on-chip RAM for user code and 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 up to 8 GPIO pins

Documents:

• 
  VLSI website


• 
  VS1053 Datasheet


• 
  MIDI Code Example