Features

 Plays audio from SD card

 Plays audio from SPI Flash (separate

firmware)

 Plays MIDI andWAV (PCM, IMA ADPCM)

 Firmware and content can be customized

 Controlled via SPI (SD) or UART (SPI

FLASH)

 High-performance CD-quality analog out

 Supports various sample rates

 Operates from a single supply (VCC=4.0

to 6.0 V)

(Note: IO pins are not 5V-tolerant. Do

not drive them over 3.6 V!)

 Line output

 Headphone output

 Line input

 Microphone input

 SPI FLASH for code and/or audio data

storage

 SD connector for large audio data storage

 The most useful signals are routed to

pin headers for easy access and customization

Description

The VS1103 Module is a small, low-cost, highperformance,

easy-to-use audio player that is

controlled from serial control interface (when

playing from SD card) or an UART (when

playing from SPI FLASH). It can be used as

a “plug-in” audio board in electronic systems

or as a standalone small audio player.

The product is supported by design services,

audio content preparation and pre-programming.

It is also fully configurable by the user by using

free Integrated Development Tools (VSIDE)

for the VS1103 IC. The use of the module

does not require any advanced information

from the user.

Pin headers of the PCB are compatible with

DIL32 footprint 2.54 pitch 15.24 mm wide (100

mils pitch, 600 mils wide). This makes it possibe

to use standard DIL32 ZIF sockets or

solder it by using DIL32 footprint.

The left row of the PCB has digital connections

for SPI control or other circuitry. The

right row has power connections, analog connections

and a serial port. These can be

used to interface the board with a PC and

VSIDE or a host microcontroller.

The VS1103 Module operates from a single

power supply. The board has either 2MBytes

(VSMD301) or 16MBytes (VSMD321) of onboard

FLASH and a SD card connector for

audio content. The module boots from the

on-board FLASH memory.