4d Systems SOMO 14D SOMO-14D SOMO-14D Ficha De Dados
Códigos do produto
SOMO-14D
4D SYSTEMS SOMO-14D
© 2012 4D SYSTEMS Page 3 of 11 www.4dsystems.com.au
SO
MO
-1
4D
Emb
ed
de
d Au
di
o-
Sou
nd M
od
ul
e
1. Description
The SOMO-14D (SOund MOdule) is a tiny Audio-
Sound module that can play back pre-stored audio
files such as voice and music from a micro-SD
memory card. The module supports 4-bit ADPCM
audio files with sample rates from 6Khz up to
32KHz.
By using 4D Systems Workshop 4 Software IDE,
any WAVE(.wav) or MP3(.mp3) file can be easily
converted to the ADPCM(.ad4) format which can
then be can be saved to a micro-SD memory card.
The compact 14pin drop-in-module takes up very
minimal board space and is ideal for any
application that requires embedded audio.
The module offers two modes of operation,
SERIAL-MODE and the KEY-MODE.
The SERIAL-MODE provides a simple 2-wire
interface to any micro-controller via its DATA and
CLK lines. Audio operations such as PLAY, PAUSE,
STOP and VOLUME control functions are all
available to the host micro via simple serial
commands.
The KEY-MODE provides a stand-alone operation
where a host micro is not required.
With only 3 push buttons, a 3V battery and a
speaker, an extremely compact and low
component count MP3-Player like system can be
implemented.
In short, the SOMO offers a very flexible, compact
and low cost embedded audio solution for many
applications.
2. Features
Low-cost module for all embedded Audio Sound
applications.
Supports 4-bit ADPCM (.ad4) file formats with
sampling rates from 6KHz to 32KHz.
SERIAL MODE: Supports a 2-Wire (Data, Clock)
interface to any micro-controller.
KEY-MODE: Supports a simple stand-alone
operation without a host micro.
Differential 2 line PWM output for direct
speaker drive (8/16/32 Ohm/0.25W).
Dedicated 16-bit DAC audio output to use with
an external amplifier.
On-board micro-SD memory card adaptor for
storing of audio, voice and music files (up to 512
files).
files).
Supports up to 2GB micro-SD memory cards
(FAT/FAT16 format).
Compact size measuring only 18.3 x 20.8 mm.
Weight ~13g.
3.0V to 3.8V DC voltage range (single supply).
RoHS Compliant.