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VS1103B Datasheet, PDF (23/61 Pages) List of Unclassifed Manufacturers – MIDI/ADPCM AUDIO CODEC
VLSI
Solution y
VS1103b
VS1103B
6. FUNCTIONAL DESCRIPTION
6 Functional Description
6.1 Main Features
VS1103b is based on a proprietary digital signal processor, VS DSP. It contains all the code and data
memory needed for WAV PCM + ADPCM audio decoding, MIDI synthesizer, together with serial in-
terfaces, 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 debug-
ging purposes.
6.2 Supported Audio Codecs
6.2.1 Supported RIFF WAV Formats
The most common RIFF WAV subformats are supported.
Format
0x01
0x02
0x03
0x06
0x07
0x10
0x11
0x15
0x16
0x30
0x31
0x3b
0x3c
0x40
0x41
0x50
0x55
0x64
0x65
Name
PCM
ADPCM
IEEE FLOAT
ALAW
MULAW
OKI ADPCM
IMA ADPCM
DIGISTD
DIGIFIX
DOLBY AC2
GSM610
ROCKWELL ADPCM
ROCKWELL DIGITALK
G721 ADPCM
G728 CELP
MPEG
MPEGLAYER3
G726 ADPCM
G722 ADPCM
Supported
+
-
-
-
-
-
+
-
-
-
-
-
-
-
-
-
-
-
-
Comments
16 and 8 bits, any sample rate ≤ 48kHz
Any sample rate ≤ 48kHz
Version 1.01, 2007-09-03
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