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VS1011 - MP3 Decoder Circuit

Block diagram

Introduction

The VS1011 is VLSI Solution's basic MP3 decoder chip. It has a reliable and high-quality MP3 and WAV decoding engine combined with a stereo D/A converter and earphone amplifier. Although intended as slave processor, the VS1011 also has a standalone mode that can be used to create a simple standalone MP3 player. Available in two difference packages, this IC is truly customer-proven: already ten million units have been delivered!

Features

·                  Decodes MP3 (MPEG 1.0 & 2.0 audio layer III (CBR, VBR, ABR));
MP1 & MP2 (MPEG 1.0 & 2.0 audio layers I & II) optional;
WAV (PCM + IMA ADPCM)

·                  Full 320 kbit/s MP3 with 12.0 MHz external clock

·                  Streaming support for MP1/2/3 and WAV

·                  Bass and treble controls

·                  Operates with single 12 - 13 MHz or 24 - 26 MHz external clock

·                  Internal clock doubler

·                  Low-power operation

·                  High-quality stereo DAC with no phase error between channels

·                  Stereo earphone driver capable of driving a 30­ ohm load

·                  Separate 2.5...3.6 V operating voltages for analog and digital

·                  Serial control and data interfaces

·                  Can be used as a slave co-processor

·                  5.5 KiB On-chip RAM for user code / data

·                  SPI flash boot for special applications

·                  New functions may be added with software and 4 GPIO pins

Package

LQFP48 7x7x1.4mm

SOIC28 10 x 17.5 x 2.5 mm

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