[信息与通信]VS1011.pdf

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[信息与通信]VS1011

VS1011 VS1011 PRELIMINARY VS1011 - MP3 AUDIO CODEC Features Description Decodes MPEG 1 2 audio layer 3 (ISO VS1011 is a single-chip MP3 audio decoder. The 11172-3), WAV and PCM files chip contains a high-performance, low-power DSP Supports VBR (variable bitrate) for MP3 4 processor core VS DSP , working memory, 5 KiB Stream support instruction RAM and 0.5 KiB data RAM for user Can be used as a slave co-processor applications, serial control and input data inter- Operates with single clock 12.288..14 MHz faces, 4 general purpose I/O pins, as well as a or 24.576..28 MHz. high-quality variable-sample-rate stereo DAC, fol- Low-power operation High-quality stereo DAC with no phase er- lowed by an earphone amplifier and a ground buffer. ror between channels Stereo earphone driver capable of driving a VS1011 receives its input bitstream through a se- 30Ω load rial input bus, which it listens to as a system slave. Separate 2.5 .. 3.6V operating voltages for

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