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VS1033C Datasheet, PDF (1/74 Pages) List of Unclassifed Manufacturers – MP3/AAC/WMA/MIDI AUDIO CODEC | |||
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VS1033c PRELIMINARY
VS1033C
VS1033 - MP3/AAC/WMA/MIDI
AUDIO CODEC
Features
⢠Decodes MPEG 1 & 2 audio layer III (CBR
+VBR +ABR); layers I & II optional;
MPEG4 / 2 AAC-LC-2.0.0.0 (+PNS);
WMA 4.0/4.1/7/8/9 all proï¬les (5-384 kbps);
WAV (PCM + IMA ADPCM);
General MIDI / SP-MIDI format 0 ï¬les
⢠Encodes IMA ADPCM from microphone
or line input
⢠Streaming support for MP3 and WAV
⢠EarSpeaker Spatial Processing
⢠Bass and treble controls
⢠Operates with a single clock 12..13 MHz
⢠Can also be used with 24..26 MHz clocks
⢠Internal PLL clock multiplier
⢠Low-power operation
⢠High-quality on-chip stereo DAC with no
phase error between channels
⢠Stereo earphone driver capable of driving a
30 ⦠load
⢠Quiet power-on and power-off
⢠I2S interface for external DAC
⢠Separate operating voltages for analog,
digital and I/O
⢠5.5 KiB On-chip RAM for user code / data
⢠Serial control and data interfaces
⢠Can be used as a slave co-processor
⢠SPI ï¬ash boot for special applications
⢠UART for debugging purposes
⢠New functions may be added with software
and 8 GPIO pins
⢠Lead-free RoHS-compliant package (Green)
Description
VS1033 is a single-chip MP3/AAC/WMA/MIDI
audio decoder and ADPCM encoder. It contains
a high-performance, proprietary low-power DSP
processor core VS DSP4, working data memory,
5 KiB instruction RAM and 0.5 KiB data RAM
for user applications, serial control and input data
interfaces, upto 8 general purpose I/O pins, an
UART, as well as a high-quality variable-sample-
rate mono ADC and stereo DAC, followed by an
earphone ampliï¬er and a common buffer.
VS1033 receives its input bitstream through a se-
rial 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 con-
trolled via a serial control bus. In addition to the
basic decoding, it is possible to add application
speciï¬c features, like DSP effects, to the user RAM
memory.
mic
audio
line
audio
GPIO
VS1033
MIC AMP
MUX
8
GPIO
DREQ
SO
SI
SCLK
XCS
XDCS
Serial
Data/
Control
Interface
RX
TX
UART
Mono
ADC
I2S
Stereo
DAC
VSDSP4
Stereo Earâ
phone Driver
X ROM
audio
L
R
output
X RAM
Y ROM
Y RAM
Clock
multiplier
Instruction
RAM
Instruction
ROM
Version 0.9, 2006-08-15
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