VS1103B datasheet(23/61 Pages) ETC2

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VLSI

Solution

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

Name

Supported

Comments

0x01

PCM

16 and 8 bits, any sample rate ≤ 48kHz

0x02

ADPCM

0x03

IEEE FLOAT

0x06

ALAW

0x07

MULAW

0x10

OKI ADPCM

0x11

IMA ADPCM

Any sample rate ≤ 48kHz

0x15

DIGISTD

0x16

DIGIFIX

0x30

DOLBY AC2

0x31

GSM610

0x3b

ROCKWELL ADPCM

0x3c

ROCKWELL DIGITALK

0x40

G721 ADPCM

0x41

G728 CELP

0x50

MPEG

0x55

MPEGLAYER3

0x64

G726 ADPCM

0x65

G722 ADPCM

Version 1.01, 2007-09-03

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