TIDM-TM4C129POEAUDIO

Audio Communication With Power Over Ethernet (PoE) Reference Design

TIDM-TM4C129POEAUDIO

Design files

Overview

This design uses Texas Instrument's high performance TM4C129x microcontrollers (MCUs) with integrated Ethernet PHY to capture, exchange and playback audio efficiently with power supplied over the network (PoE solution) instead of separate external power sources. The application uses TivaWare Graphics Library to implement a user interface with touch control, lwIP for exchange of data over the network and Opus Audio Codec for compressing audio data to improve bandwidth utilization.

Features
  • Less than 500 mW power consumption for the microcontroller, LCD and audio sub system with total system provision of up to 7W isolated output from the fly-back converter
  • Efficient and royalty-free open-source Opus Audio Codec to reduce network utilization during audio call and software cost due to licensing
  • Smart touch LCD panel running TivaWare Graphics Library for graphics rich User interface and experience
  • High signal to noise ratio microphone stage to improve audio capture using instrumentation ADC
  • PC application software source code and executable for dynamic node configuration over the network
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A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

Download ready-to-use system files to speed your design process.

TIDUC16.PDF (14156 K)

Reference design overview and verified performance test data

TIDRNF5.ZIP (487 K)

Detailed schematic diagram for design layout and components

TIDRNF6.PDF (199 K)

Complete listing of design components, reference designators, and manufacturers/part numbers

TIDRNF7.ZIP (215 K)

Detailed overview of design layout for component placement

TIDRNF9.ZIP (25038 K)

Files used for 3D models or 2D drawings of IC components

TIDCCL4.ZIP (286 K)

Design file that contains information on physical board layer of design PCB

TIDRNF8.ZIP (1849 K)

PCB layer plot file used for generating PCB design layout

Products

Includes TI products in the design and potential alternatives.

Arm Cortex-M4 MCUs

TM4C1294KCPDT32-bit Arm Cortex-M4F based MCU with 120-MHz, 512-kb Flash, 256-kb RAM, USB, ENET MAC+PHY

Data sheet: PDF
Arm Cortex-M4 MCUs

TM4C1294NCPDT32-bit Arm Cortex-M4F based MCU with 120-MHZ, 1-MB flash, 256-KB RAM, USB, ENET MAC+PHY

Data sheet: PDF
Arm Cortex-M4 MCUs

TM4C1294NCZAD32-bit Arm Cortex-M4F based MCU with 120-MHz, 1-MB Flash, 256-kb RAM, USB, ENET MAC+PHY

Data sheet: PDF
Arm Cortex-M4 MCUs

TM4C1299KCZAD32-bit Arm Cortex-M4F based MCU with 120-MHz, 512-kb Flash, 256-kb RAM, USB, ENET MAC+PHY, LCD

Data sheet: PDF
Arm Cortex-M4 MCUs

TM4C1299NCZAD32-bit Arm Cortex-M4F based MCU with 120-MHz, 1-MB Flash, 256-kb RAM, USB, ENET MAC+PHY, LCD

Data sheet: PDF
Arm Cortex-M4 MCUs

TM4C129EKCPDT32-bit Arm Cortex-M4F based MCU with 120-MHz, 512-kb Flash, 256-kb RAM, USB, ENET MAC+PHY, AES

Data sheet: PDF
Arm Cortex-M4 MCUs

TM4C129ENCPDT32-bit Arm Cortex-M4F based MCU with 120-MHz, 1-MB Flash, 256-kb RAM, USB, ENET MAC+PHY, AES

Data sheet: PDF
Arm Cortex-M4 MCUs

TM4C129ENCZAD32-bit Arm Cortex-M4F based MCU with 120-MHz, 1-MB Flash, 256-kb RAM, USB, ENET MAC+PHY, AES

Data sheet: PDF
Arm Cortex-M4 MCUs

TM4C129LNCZAD32-bit Arm Cortex-M4F based MCU with 120-MHz, 1-MB Flash, 256-kb RAM, USB, ENET MAC+PHY, LCD, AES

Data sheet: PDF
Arm Cortex-M4 MCUs

TM4C129XKCZAD32-bit Arm Cortex-M4F based MCU with 120-MHz, 512-kb Flash, 256-kb RAM, USB, ENET MAC+PHY, LCD, AES

Data sheet: PDF
Arm Cortex-M4 MCUs

TM4C129XNCZAD32-bit Arm Cortex-M4F based MCU with 120-MHz, 1-MB Flash, 256-KB RAM, USB, ENET MAC+PHY, LCD, AES

Data sheet: PDF
ESD protection diodes

TPD2E2U06Dual 1.5-pF, 5.5-V, ±25-kV ESD protection diode with 5.5-A 8/20-uS surge rating for USB 2.0

Data sheet: PDF | HTML
General-purpose op amps

OPA322Single, 5.5-V, 20-MHz, 65-mA output current, low noise (8.5-nV/√Hz) operational amplifier

Data sheet: PDF | HTML
Linear & low-dropout (LDO) regulators

TPS737-Q1Automotive 1A ultra-low-dropout voltage regulator with reverse current protection and enable

Data sheet: PDF
Powered devices

TPS23753AIEEE 802.3-2005 PoE interface and Isolated Converter controller with Enhanced ESD Ride-Through

Data sheet: PDF | HTML
Shunt voltage references

TLV431A1% accuracy, low-voltage, adjustable precision shunt regulator

Data sheet: PDF | HTML
Speaker amps

LM4819350-mW, mono, analog input Class-AB audio amplifier & VSSOP package

Data sheet: PDF

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Software

Firmware

TIDCCL9 TIDM-TM4C129POEAUDIO Firmware

Technical documentation

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Type Title Date
* Design guide Audio Communication With Power Over Ethernet (PoE) Design Guide Aug. 12, 2016

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Reference designs

REFERENCE DESIGN
TIDM-TM4C129POE TM4C129POE Power Over Ethernet (PoE) Reference Design for Connected IoT

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