Product Description
Description: The VS1003 from VLSI is a single-chip MP3/WMA/MIDI audio decoder and ADPCM encoder. Central to the IC is a high-performance, low-power DSP processor core VS DSP4. It's loaded with features: working data memory, 5kB instruction RAM and 0.5kB data RAM for user applications, serial control and input data interfaces, 4 general purpose I/O pins, a UART. Also, a high-quality, variable-sample-rate, mono ADC and stereo DAC, followed by an earphone amplifier and a ground buffer
Comes in an LQFP-48 pin package.
Features:
Decodes:
MPEG 1 & 2 audio layer III (CBR +VBR +ABR)
WMA 4.0/4.1/7/8/9 all profiles (5-384kbit/s)
WAV (PCM + IMA ADPCM);General MIDI / SP-MIDI files
Encodes IMA ADPCM from microphone or line input
Streaming support
Bass and treble controls
Operates with a single 12 - 13 MHz or 24 - 26MHz clock
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 ohm load
Separate operating voltages for analog, digital and I/O
5.5kB On-chip RAM for user code / data
5kB instruction RAM
0.5kB user data RAM
Serial control and data interfaces
Can be used as a slave co-processor
SPI flash boot for special applications
UART for debugging purposes
New functions may be added with software and 4 GPIO pins
Documents:
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