Features

 Decodes MPEG 1.0 & 2.0 audio layer

III (MP3: CBR, VBR, ABR); layers I &

II (MP1, MP2) optional; WAV (PCM +

IMA ADPCM)

 320 kbit/s MP3 with 12.0MHz external

clock

 Streaming support for all audio formats

 Bass and treble controls

 Operates with single 12..13MHz or

24..26MHz 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

load

 Separate 2.5..3.6V 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 boot for standalone applications

 New functions may be added with software

and 4 GPIO pins

 Lead-free and RoHS-compliant packages

LQFP-48 and SOIC-28

Description

VS1011e is a single-chip MPEG audio (MP3)

decoder IC. It contains a high-performance,

low-power DSP core VS_DSP4, working memory,

5 KiB instruction RAM and 0.5 KiB data

RAM for user applications, serial control and

input data interfaces, 4 general purpose I/O

pins, as well as a high-quality variable-samplerate

stereo DAC, followed by an earphone amplifier

and a common buffer.

VS1011e 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 oversampling, multi-bit, sigmadelta

DAC. The decoding is controlled via a

serial control bus. In addition to basic decoding,

it is possible to add application specific

features, like DSP effects, to the user RAM

memory.

VS1011e can boot directly from SPI EEPROM

to run standalone applications without a separate

microcontroller.