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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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