VLSI VS1003
VS1003 is a single-chip MP3/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, 4 general purpose I/O pins, an UART, as well as a high-quality variablesample-rate mono ADC and stereo DAC, followed by an earphone amplifier and a common buffer. The input stream is decoded and passed through a digital volume control to an 18-bit oversampling, multi-bit, sigmadelta DAC.| Part No. | VS1003 |
|---|---|
| Datasheet | VS1003 Download |
| Manufacturer |  VLSI |
| Description | MP3/WMA AUDIO CODEC |
| Buy | Stock & Price |
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 for MP3 and WAV
● Bass and treble controls
● Operates with a single 12..13 MHz 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 driv- ing a 30Ω load
● 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 flash boot for special applications
● UART for debugging purposes
● New functions may be added with soft- ware and 4 GPIO pins
DESCRIPTION
VS1003 receives its input bitstream through a serial input bus, which it listens to as a system slave. The decoding is controlled via a serial control bus. In addition to the basic dec...
