VS1002D Datasheet, PDF (22/54 Pages) List of Unclassifed Manufacturers – MP3 AUDIO CODEC

VLSI
Solution ^y
VS1002d
VS1002D
8. FUNCTIONAL DESCRIPTION
8 Functional Description
8.1 Main Features
VS1002d is based on a proprietary digital signal processor, VS DSP. It contains all the code and data
memory needed for MP3 and WAV PCM + ADPCM audio decoding, together with serial interfaces, a
multirate stereo audio DAC and analog output amplifiers and filters. Also ADPCM audio encoding is
supported using a microphone amplifier and A/D converter. A UART is provided for debugging purposes.
VS1002d can play all MPEG 1.0 and 2.0 layer III files, with all sample rates and bitrates, including
variable bitrate (VBR).
8.2 Supported Audio Codecs
Mark
+
-
Conventions
Description
Format is supported
Format exists but is not supported
Format doesn’t exist
8.2.1 Supported MP3 (MPEG layer III) Formats
MPEG 1.0¹:
Samplerate / Hz
Bitrate / kbit/s
32 40 48 56 64 80 96 112 128 160 192 224 256 320
48000 + + + + + + + + + + + + +³ +³
44100 + + + + + + + + + + + + + +³
32000 + + + + + + + + + + + + + +
MPEG 2.0¹:
Samplerate / Hz
8
24000 +
22050 +
16000 +
Bitrate / kbit/s
16 24 32 40 48 56 64 80 96 112 128 144 160
+++++++++++++
+++++++++++++
+++++++++++++
MPEG 2.5^{1 2}:
Samplerate / Hz
8
12000 +
11025 +
8000 +
Bitrate / kbit/s
16 24 32 40 48 56 64 80 96 112 128 144 160
+++++++++++++
+++++++++++++
+++++++++++++
1 _{Also all variable bitrate (VBR) formats are supported.}
2 _{Incompatibilities may occur because MPEG 2.5 is not a standard format.}
3 _{Nominal CLKI=24.576 MHz may be too little for glitchless playback.}
Version 1.0, 2005-04-27
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