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TIDM-TM4C129POEAUDIO

Audio Communication With Power Over Ethernet (PoE) Reference Design

Design files

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.

download Design guide — TIDM-TM4C129POEAUDIO
TIDUC16.PDF (14156 K)

Reference design overview and verified performance test data

download Schematic — TIDM-TM4C129POEAUDIO
TIDRNF5.ZIP (487 K)

Detailed schematic diagram for design layout and components

download Bill of materials (BOM) — TIDM-TM4C129POEAUDIO
TIDRNF6.PDF (199 K)

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

download Assembly drawing — TIDM-TM4C129POEAUDIO
TIDRNF7.ZIP (215 K)

Detailed overview of design layout for component placement

download CAD/CAE symbol — TIDM-TM4C129POEAUDIO
TIDRNF9.ZIP (25038 K)

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

download Gerber file — TIDM-TM4C129POEAUDIO
TIDCCL4.ZIP (286 K)

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

download PCB layout — TIDM-TM4C129POEAUDIO
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

TM4C1294KCPDT — 32-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

TM4C1294NCPDT — 32-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

TM4C1294NCZAD — 32-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

TM4C1299KCZAD — 32-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

TM4C1299NCZAD — 32-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

TM4C129EKCPDT — 32-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

TM4C129ENCPDT — 32-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

TM4C129ENCZAD — 32-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

TM4C129LNCZAD — 32-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

TM4C129XKCZAD — 32-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

TM4C129XNCZAD — 32-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

TPD2E2U06 — Dual 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

OPA322 — Single, 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-Q1 — Automotive 1-A, ultra-low-dropout voltage regulator with reverse current protection & enable

Data sheet: PDF
Powered devices

TPS23753A — IEEE 802.3-2005 PoE interface and Isolated Converter controller with Enhanced ESD Ride-Through

Data sheet: PDF | HTML
Shunt voltage references

TLV431A — 1% accuracy, low-voltage, adjustable precision shunt regulator

Data sheet: PDF | HTML
Speaker amps

LM4819 — 350-mW, mono, analog input Class-AB audio amplifier & VSSOP package

Data sheet: PDF

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Software

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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