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IP Audio Module 300

low cost version with limited feature set, one serial port, digital I/O, Decoding only, 3.3V supply

The IPAM 300 is a universal, standalone, IP Audio function block which can be easily embedded into OEM products. The module decodes IP Audio streams and provides the decoded audio as a (stereo) analog or digital (I2S) feed. Supporting a vast range of protocols and codecs the module can be used for both VoIP and IP paging as well as high quality music distribution and IP music streaming applications. Control I/O (serial port, digital inputs and outputs) allow the use with UI and control interfaces. Most of the Barix Exstreamer products are based on this module.

Main Features

  • AACplus, MP3, Ogg Vorbis, G.711, PCM Decoding
  • IP Streaming via TCP, UDP, RTP, Multicast
  • Line Level Output (Stereo)
  • General Purpose I/O (4)
  • RS-232 Serial Port (TTL Level)
  • Supply Voltage (3.3V)
  • USB Flash Memory Interface

Designed in Switzerland and with more than 100.000 modules used in the field, the Barix IPAM-300 family is the solution of choice for OEMs and product designers who want to add IP Audio capabilities to their devices with simplicity.

Technical Specifications

Audio Interfaces and Formats

I2S bus (Inter-IC Sound), Analog stereo out 1.5Vpp, Volume, base and treble adjustable by application

AAC+ (HE-AAC V2 incl SBR and PS, needs licensing by OEM), MP3 up to 320 kBit fixed & variable bit rates, Ogg Vorbis (floor 1), WMA, G.711 (uLaw / aLaw @ 8 to 48 kHz), PCM (16 bit @ 8 to 48 kHz)


Network Interface

10/100 Mbit Ethernet (Auto), TCP/IP, UDP, RTP, HTTP, DHCP, SNMP, AutoIP, SonicIP, IPzator, ES-100/SPKR (Ethersound)


Misc. Interfaces

TTL Level UART 300..230'400 Baud

Outputs for 2 dualcolor Ethernet status LEDs,

4 General Purpose I/Os, 1 input for reset button,

2 status LED outputs), USB1.1 interface for memory


CPU / Memory

Integrated CPU / MAC / IO controller with on-chip 256 KB RAM, 2 KB EEprom (configuration), 2 MB Flash memory (application and web server content)

Operating System

Embedded, robust OS, IP stack with Multicast support


User / Application Interfaces

Integrated web server (control/configuration),

browser based, serial or Ethernet control API,

programmable software environment


Power requirements

Single 3.3 VDC, 1.6 Watt max.


Weight, dimensions

14 g approx.

2.2" x 1.3" x 0.39", 56 mm x 33 mm x 10 mm



Min. 950 000h acc. to MIL217F at 40°C

Use Cases

Internet Radio Receiver

SIP and IP Paging Zone Device

Generic VoIP decoder for IP Paging and Announcement applications

Commercial Audio Streaming Applications

Digital Annunciator, Message Player, Message Repeater

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Ordering Numbers

  • 2012.9122

    IPAM 300


    Sold in quantities of 10, 200 and 1000.

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