Self-Booting Audio System


Design files


The purpose of this reference design is to provide hardware and software tools that can be used as reference for audio systems. The new revision of the PurePath™ Console Motherboard (Rev F) adds stand-alone self-booting capabilities to allow making compelling demos with any evaluation module (EVM) that is compatible with this platform.

  • Self-booting audio system with push-button user interface powered by MSP430F5510
  • Example MSP430 code and documentation
  • On-board TLV320AIC3262 with miniDSP allows pre-processing of audio signal before sending it over to the DUT EVM
  • Supports USB, optical and analog audio I/Os
  • Modular PurePath console motherboard works with many of our audio EVMs

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.

TIDUA79.PDF (205 K)

Test results for the reference design, including efficiency graphs, test prerequisites and more


Detailed schematic diagram for design layout and components


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

TIDRFK6.PDF (1219 K)

Detailed overview of design layout for component placement

TIDRFK8.ZIP (24452 K)

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

TIDCAJ3.ZIP (7534 K)

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

TIDRFK7.PDF (2187 K)

PCB layer plot file used for generating PCB design layout


Includes TI products in the design and potential alternatives.

Analog switches & muxes

LMS46840.5-Ω on-state resistance, 5-V, 2:1 (SPDT), 2-channel analog switch with 1.8-V input logic

Data sheet: PDF
Audio CODECs

PCM3168A24-bit Multi-channel Audio CODEC 6ch-in/8ch-out with 96/192kHz sampling rate

Data sheet: PDF | HTML
Audio CODECs

TLV320AIC3262Low Power Stereo Codec w/miniDSP, Stereo class-D Speakers, DirectPath Headphone

Data sheet: PDF | HTML
Audio op amps

OPA4134Quad SoundPlus™ High Performance Audio Operational Amplifiers

Data sheet: PDF | HTML
Boost converters (integrated switch)

LMR62421SIMPLE SWITCHER 2.7V to 5.5V, 24Vout, 2.1A Boost Converter in SOT-23

Data sheet: PDF
Buck converters (integrated switch)

TPS543323.5V to 28V Input, 3.5A, 1MHz Step-Down Converter with Eco-mode

Data sheet: PDF | HTML
Digital multiplexers & encoders

SN74LVC2G157Single 2-Line to 1-Line Data Selector/Multiplexer

Data sheet: PDF | HTML
I2C general-purpose I/Os (GPIOs)

TCA6408A8-bit translating 1.65- to 5.5-V I2C/SMBus I/O expander with interrupt, reset & config registers

Data sheet: PDF
I2C general-purpose I/Os (GPIOs)

TCA6424A24-bit translating 1.65- to 5.5-V I2C/SMBus I/O expander with interrupt, reset & config registers

Data sheet: PDF | HTML
I2C general-purpose I/Os (GPIOs)

TCA65077-bit 1.65- to 5.5-V I2C/SMBus LED driver with intensity control, shutdown & config registers

Data sheet: PDF | HTML
I2C level shifters, buffers & hubs

TCA94062-bit bidirectional 1MHz I2C/SMBus voltage level translator with internal pull-up resistor

Data sheet: PDF | HTML
Inverting buffers & drivers

SN74LVC1G14Single 1.65-V to 5.5-V inverter with Schmitt-Trigger inputs

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

LP386901-A, 10-V, low-dropout voltage regulator

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

TPS7681-A, 10-V, low-dropout voltage regulator with power good & enable

Data sheet: PDF
MSP430 microcontrollers

MSP430F551025 MHz MCU with 32KB Flash, 4KB SRAM, 10-bit ADC, comparator, DMA, UART/SPI/I2C, USB, HW multiplier

Data sheet: PDF | HTML
Noninverting buffers & drivers

SN74LVC1G125Single 1.65-V to 5.5-V buffer with 3-state outputs

Data sheet: PDF | HTML
Noninverting buffers & drivers

SN74LVC2G342-ch, 1.65-V to 5.5-V buffers

Data sheet: PDF | HTML
SPDIF transceivers

PCM9211216kHz Digital Audio Interface Transceiver (DIX) with Stereo ADC and Routing

Data sheet: PDF | HTML
Supervisor & reset ICs

TPS3825voltage supervisor (reset IC) with manual reset

Data sheet: PDF | HTML

Start development


Support software

TIDA-00609 Software — TIDCAJ4.ZIP (4158 K)

lock = Requires export approval (1 minute)

Technical documentation

= Top documentation selected by TI
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Type Title Date
* User guide Easy Demo User Manual Jun. 22, 2015
Test report TIDA-00609 Test Results Jun. 25, 2015

Support & training

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