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VS1011E-L

产品类别模拟混合信号IC    视频音频接口芯片   
文件大小554KB,共49页
制造商VLSI
官网地址http://www.vlsi.fi/
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VS1011e
VS1011e - MP3 AUDIO DECODER
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 12.0 MHz external
clock
Streaming support for all audio formats
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 driv-
ing a 30
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 boot for standalone applications
New functions may be added with soft-
ware 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_DSP
4
, working mem-
ory, 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-sample-
rate stereo DAC, followed by an earphone am-
plifier 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, sigma-
delta DAC. The decoding is controlled via a
serial control bus. In addition to basic decod-
ing, 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 sep-
arate microcontroller.
VS1011
GPIO
4
GPIO
Stereo
DAC
Stereo Ear−
phone Driver
audio
L
R
output
X ROM
DREQ
SO
SI
SCLK
XCS
XDCS
Serial
Data/
Control
Interface
VSDSP
4
X RAM
Y ROM
Y RAM
Instruction
RAM
Instruction
ROM
Version: 1.23, 2017-09-08
1

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