BARIX IPAM 400 Preliminary Development Specification

Advanced, multi format ip audio module with network, usb and serial interfaces plus wi-fi, adding ip based streaming and controlling capabilities to oem products

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IPAM 400

Preliminary Development Specification

Advanced, multi format IP audio module with network, USB and serial

interfaces plus Wi-Fi, adding IP based streaming and controlling

capabilities to OEM products

Document version 02.20

Release date

Hardware Rev.

All mentioned trademarks belong to their respective owners and are used for reference only

9th April 2018

HW 12

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Summary of Contents for BARIX IPAM 400

Page 1 Document version 02.20 Release date 9th April 2018 Hardware Rev. HW 12 © 2017 Barix AG, all rights reserved. All information is subject to change without notice. All mentioned trademarks belong to their respective owners and are used for reference only...
Page 2: Table Of Contents
Preliminary Development – BARIX IP AUDIO MODULE 400 – V 02.20 – 9.April.2018 Table of Contents TABLE OF CONTENTS INTRODUCTION About this document Additional documents About the IP AUDIO MODULE 400 Hardware features Evaluation of the Barix IP Audio Module...
Page 3 Preliminary Development – BARIX IP AUDIO MODULE 400 – V 02.20 – 9.April.2018 Serial interfaces Peripheral I/O interfaces Audio interfaces Audio Processor (Codec) Decoding features Line Input and A/D Conversion typical values Microphone input and A/D conversion typical values Line output and D/A conversion typical values...
Page 4: Introduction
Preliminary Development – BARIX IP AUDIO MODULE 400 – V 02.20 – 9.April.2018 Introduction About this This Development Specification aims at giving insight to detailed document technical aspects of the Barix IP AUDIO MODULE 400 (IPAM400) and complements the information given in the product sheet.
Page 5: Basic Support Package (Bsp) Yocto Layer
Preliminary Development – BARIX IP AUDIO MODULE 400 – V 02.20 – 9.April.2018 Basic Support The BARIX IPAM400 can be used for developing multiple applications Package (BSP) related to networked audio distribution, playback and control. Yocto layer BARIX provides an embedded Linux system based on the Yocto framework and the associated Yocto layer that contains the board's Basic Support Package (BSP) for the IPAM400.
Page 6: Hardware
Preliminary Development – BARIX IP AUDIO MODULE 400 – V 02.20 – 9.April.2018 Hardware Mechanical drawing The Barix IP AUDIO MODULE 400 provides five, standard 2,54mm spacing, single row pin headers, intended to match target connector or motherboard, also suitable to soldering.
Page 7: Block Diagram
Preliminary Development – BARIX IP AUDIO MODULE 400 – V 02.20 – 9.April.2018 Block diagram Network interfaces 1 x PHY (TP), 2 ETH Status LEDs The Barix IP AUDIO MODULE 400 is equipped with one physical layer (PHY) Ethernet interface (10/100MBit, full / half duplex, auto- negotiation).
Page 8: Analog Audio
Preliminary Development – BARIX IP AUDIO MODULE 400 – V 02.20 – 9.April.2018 Analog audio 1 x Stereo Output (L&R), 1 x Microphone Input (balanced/unbalanced) or 1 x Stereo Input Three analog audio interfaces are provided on the Barix IP Audio Module of which two can be used concurrently (audio input can be selected to be either stereo input or microphone input).
Page 9: Connectors
Preliminary Development – BARIX IP AUDIO MODULE 400 – V 02.20 – 9.April.2018 Connectors Connector placement For connector placement (and type) please refer to the mechanical drawing in previous chapter. Connector pin out Pin # Name Type Description (usage) J1 pin out (analog audio Mic balanced negative input (unbal.
Page 10: J4 Pin Out (Network, Usb)
Preliminary Development – BARIX IP AUDIO MODULE 400 – V 02.20 – 9.April.2018 Pin # Name Type Description (usage) Reserved USB-IDDET USB ID detection DGND Digital Ground USB 2.0 Host Interface negative / USB 2.0 OTG USBDM0 Interface negative USB 2.0 Host positive negative / USB 2.0 OTG...
Page 11: Layout Guidelines
• Analog and digital ground domains must be connected outside of the IPAM 400 ! To allow low noise designs, the analog ground domain on the IPAM is kept unconnected from the digital (noisy) ground. •...
Page 12: Carrier Pcb Power And Signal Domains
Preliminary Development – BARIX IP AUDIO MODULE 400 – V 02.20 – 9.April.2018 • Although all audio inputs are DC-decoupled consider the use of current limiting resistors in the audio signal path close to the devices connectors. It is a good procedure to also limit the max input voltage to 3.3 volts using zener diodes (ZDi) right after the resistor.
Page 13: Technical Data
Preliminary Development – BARIX IP AUDIO MODULE 400 – V 02.20 – 9.April.2018 Technical data Power supply input Parameter Unit Supply voltage (Nominal) Supply voltage (Absolute Maximum Ratings) Power consumption max. CPUs / Boot / Memory Parameter Details Central Quad-core ARM Cortex –A7 MPCore...
Page 14: Line Input And A/D Conversion Typical Values
Preliminary Development – BARIX IP AUDIO MODULE 400 – V 02.20 – 9.April.2018 Audio interfaces Parameter Value Unit Line Input and A/D Conversion Input clipping level (input gain set to 0 dBu)* 0.975 typical values 2.76 Analog input impedance 2000 Ω...
Page 15: Mtbf Calculations
Preliminary Development – BARIX IP AUDIO MODULE 400 – V 02.20 – 9.April.2018 MTBF calculations Parameter Value Unit MTBF calculated according to MIL217F Calculated Supply Voltage Calculated Temperature (ambient) ° C ° F Calculated Temperature (inside device, e.g. Barix ° C Instreamer) °...
Page 16: Certifications / Compliances
To maintain compliance with FCC’s RF Exposure guidelines, This equipment should be installed and operated with minimum distance between 20cm the radiator your body: Use only the supplied antenna. Changes or modifications made to this equipment not expressly approved by (BARIX) may void the FCC authorization to operate this equipment...
Page 17: Ordering Information
All rights reserved. All trademarks belong to their respective owners and are used for reference only. Barix and Barix IP Audio Module are trademarks of Barix AG, Switzerland and are registered in certain countries. Newest information about our devices is available via download from our website, www.barix.com.