VS1003 - MP3/WMA AUDIO CODEC
■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 variable-sample-rate mono ADC and stereo DAC, followed by an earphone amplifier and a common 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.
●Features
■Decodes MPEG 1 & 2 audio layer III (CBR +VBR +ABR); WMA 4.0/4.1/7/8/9 all pro- files (5-384kbit/s); WAV (PCM + IMA AD- PCM); 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 driving a 30Ω load
■Separate operating voltages for analog, dig- ital 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 software and 4 GPIO pins
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MP3/WMA AUDIO CODEC 、 single-chip MP3/WMA/MIDI audio decoder and ADPCM encoder |
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Datasheet |
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Please see the document for details |
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LQFP-48;BGA-49 P |
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English Chinese Chinese and English Japanese |
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2009-02-03 |
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Version 1.04 |
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522 KB |
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