Features: Decodes MPEG 1 & 2 audio layer III (CBR +VBR +ABR); WMA 4.0/4.1/7/8/9 all pro- files (5-384kbps); 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 clo...
VS1003: Features: Decodes MPEG 1 & 2 audio layer III (CBR +VBR +ABR); WMA 4.0/4.1/7/8/9 all pro- files (5-384kbps); WAV (PCM + IMA ADPCM); General MIDI / SP-MIDI files Encodes IMA ADPCM from microphone...
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Parameter |
Symbol |
Min |
Max |
Unit |
Analog Positive Supply |
AVDD |
-0.3 |
3.6 |
V |
Digital Positive Supply |
CVDD |
-0.3 |
2.7 |
V |
I/O Positive Supply |
IOVDD |
-0.3 |
3.6 |
V |
Current at Any Digital Output |
|
|
±50 |
mA |
Voltage at Any Digital Input |
|
-0.3 |
IOVDD+0.31 |
V |
Operating Temperature |
|
-40 |
+85 |
°C |
Storage Temperature |
|
-65 |
+150 |
°C |
VS1003 is a single-chip MP3/WMA/MIDI audio decoder and ADPCM encoder. It contains a highperformance, 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 variable-sample-rate mono ADC and stereo DAC, followed by an earphone amplifier and a ground buffer.
VS1003 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 the basic decoding, it is possible to add application specific features, like DSP effects, to the user RAM memory.