Description
   VS1063a is an easy-to-use, versatile encoder, decoder and codec for a multitude of audio formats.
   VS1063a contains a high-performance, proprietary low-power DSP core VS_DSP4, ROM memories, 16 KiB instruction RAM and up to 80 KiB data RAM for user applications running simultaneously with any built-in decoder, serial control and input data interfaces, up to 12 general purpose I/O pins, a UART, as well as a high-quality stereo ADC, and a variablesample-rate stereo DAC, followed by an earphone amplifier and a common voltage buffer.

KEY FEATUREs
• Encoders:
   MP3; Ogg Vorbis; PCM; IMA ADPCM;
   G.711 (µ-law, A-law); G.722 ADPCM
• Decoders:
   MP3 (MPEG 1 & 2 audio layer III (CBR
   +VBR +ABR));
   MP2 (layer II) (optional);
   MPEG4 / 2 AAC-LC(+PNS),
   HE-AAC v2 (Level 3) (SBR + PS);
   Ogg Vorbis; FLAC;
   WMA 4.0/4.1/7/8/9 all profiles (5-384 kbps);
   WAV (PCM, IMA ADPCM, 
       G.711 µ-law/A-law, G.722 ADPCM)
• Full Duplex Codecs with optional AEC:
   PCM; G.711 (µ-law, A-law);
   G.722 ADPCM; IMA ADPCM
• Streaming support
• Up to 96 KiB RAM for user code / data
• Unique ID for user code protection
• Quiet power-on and power-off
• I2S output interface for external DAC
• Serial control and data interfaces
• Can be used either as a slave co-processor
   or as a standalone processor
• UART for debugging purposes
• New functions may be added with software and up to 12 GPIO pins

APPLICATIONs
• MP3-recording audio player
• Streaming server and client
• Wireless audio transfer
• Standalone player and recorder
• Internet phones