Texas Instruments TAS3108EVM2 User Manual
TAS3108EVM2 User's Guide
Evaluation Module for the
TAS3108 Digital Audio Signal Processor
User's Guide
NOVEMBER 2006 Digital Audio and Video Products
SLEU065A
TAS3108EVM2 User's Guide
Evaluation Module for the
TAS3108 Digital Audio Signal Processor
User's Guide
Literature Number: SLEU065A
SEPTEMBER 2005 – Revised NOVEMBER 2006
Contents
Preface ............................................................................................................................... 5
1 Overview ................................................................................................................... 7
1.1 TAS3108EVM2 System Features ................................................................................ 8
1.2 PCB Key Map ....................................................................................................... 9
1.3 Input Board ......................................................................................................... 10
1.4 Output Board ....................................................................................................... 11
2 Quick Setup Guide .................................................................................................... 13
2.1 Electrostatic Discharge Warning ................................................................................ 14
2.2 Unpacking the EVM ............................................................................................... 14
2.3 Power Supply Setup .............................................................................................. 15
2.4 Digital Audio Inputs/Outputs ..................................................................................... 15
2.5 Master/Slave Mode ............................................................................................... 15
2.6 TAS3108 Software Installation .................................................................................. 16
3 System Interfaces ..................................................................................................... 17
3.1 Control Interface (J11), Input .................................................................................... 18
3.2 Digital Audio Interface, Input (J12) .............................................................................. 19
3.3 Control Interface, Output (J21) .................................................................................. 20
3.4 Digital Audio Interface, output (J22) ............................................................................ 21
3.5 Connectors on the Input-USB board ............................................................................ 21
3.5.1 Analog Inputs ............................................................................................. 21
3.5.2 SPDIF Coax ............................................................................................... 22
3.5.3 AP PSIA Interface ........................................................................................ 22
3.5.4 I2C Connector (J301) .................................................................................... 24
3.5.5 Control Interface (J800) ................................................................................. 24
3.6 Connectors on the DAC8-DIT2 Board .......................................................................... 25
3.6.1 Analog Outputs ........................................................................................... 25
3.6.2 3.6.2 SPDIF Coax ........................................................................................ 26
Important Notices ............................................................................................................... 27
SLEU065A – SEPTEMBER 2005 – Revised NOVEMBER 2006 Contents 3
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List of Figures
1-1 TAS3108EVM2 System ..................................................................................................... 8
1-2 Physical Structure for the TAS3108EVM2 (Rough Outline) ............................................................ 9
1-3 Input Board Outline ........................................................................................................ 10
1-4 Physical Structure for Output DAC8-DIT2 Board Outline ............................................................. 11
1-5 Complete System .......................................................................................................... 12
2-1 TAS3108 GDE Window ................................................................................................... 16
3-1 J200 … J203 Pin Pumbers ................................................................................................ 21
3-2 J140 Pin Numbers ......................................................................................................... 22
3-3 AP PSIA Default Setting ................................................................................................... 22
3-4 AP PSIA Settings Using External I2S Source .......................................................................... 23
3-5 AP PSIA Interface Pin Numbers ......................................................................................... 23
3-6 J301 Pin Numbers ......................................................................................................... 24
3-7 J71 to J74 Pin Numbers ................................................................................................... 25
3-8 J62 Pin Numbers ........................................................................................................... 26
List of Tables
1 Related Documentation from Texas Instruments ........................................................................ 6
2-1 Recommended Supply Voltages for DAC8DIT2 Board ............................................................... 15
3-1 J11 Pin Description ........................................................................................................ 18
3-2 J12 Pin Description ........................................................................................................ 19
3-3 J21 Pin Description ........................................................................................................ 20
3-4 J22 Pin Description ........................................................................................................ 21
3-5 J200 Pin Description (Similar for J201 to J203) ........................................................................ 21
3-6 J140 Pin Description ....................................................................................................... 22
3-7 AP PSIA Pin Description .................................................................................................. 23
3-8 J301 Pin Description ....................................................................................................... 24
3-9 J800 Pin Description ....................................................................................................... 24
3-10 J71 Pin Description ........................................................................................................ 25
3-11 J62 Pin Description ........................................................................................................ 26
4 List of Figures SLEU065A – SEPTEMBER 2005 – Revised NOVEMBER 2006
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CAUTION
This is an example of a caution statement.
A caution statement describes a situation that could potentially
damage your software or equipment.
WARNING
This is an example of a warning statement.
A warning statement describes a situation that could potentially
cause harm to you.
About This Manual
This manual describes the operation of the TAS3108EVM2 evaluation module from Texas Instruments.
How to Use this Manual
This document contains the following chapters:
Chapter 1 - Overview
Chapter 2 - Quick Setup Guide
Chapter 3 - System Interfaces
Information About Cautions and Warnings
This manual may contain cautions and warnings.
Preface
SLEU065A – SEPTEMBER 2005 – Revised NOVEMBER
2006
Read This First
The information in a caution or a warning is provided for your protection. Please read each caution and
warning carefully.
SLEU065A – SEPTEMBER 2005 – Revised NOVEMBER 2006 Read This First 5
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Related Documentation from Texas Instruments
Related Documentation from Texas Instruments
The following table contains a list of data manuals that have detailed descriptions of the integrated circuits
used in the design of the TAS3108EVM2. The data manuals can be obtained at the URL
http://www.ti.com .
Additional Documentation
1. TAS3108EVM2 Application Report
2. Graphical Development tool (GDE) for TAS3108 (GDE version 1.11 or later)
3. General Application Notes
Trademarks
PurePath Digital is a trademark of Texas Instruments.
All other trademarks are the property of their respective owners.
Table 1. Related Documentation from Texas Instruments
PART NUMBER LITERATURE NUMBER
TAS3108 SLES152
TLV1117-33 SLVS561
TPS3825-33 SLVS165
6 Read This First SLEU065A – SEPTEMBER 2005 – Revised NOVEMBER 2006
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SLEU065A – SEPTEMBER 2005 – Revised NOVEMBER
Overview
The TAS3108EVM2 PurePath Digital™ customer evaluation amplifier module
demonstrates the digital audio processor TAS3108/TAS3108IA from Texas Instruments
(TI).
TAS3108DCP/TAS3108IADCP is a fully programmable high-performance audio
processor. It uses an efficient, custom, multi-instruction programming environment
optimized for digital audio processing algorithms. The TAS3108/TAS3108IA
architecture provides high-quality audio processing by using a 48-bit data path, 28-bit
filter coefficients, and a single-cycle 28 × 48-bit multiplier with a 76-bit accumulator. An
embedded 8051 microprocessor provides algorithm and data control for the
TAS3108/TAS3108IA. The TAS3108 is the commercial version, intended for home
audio and other commercial applications. The TAS3108IA is the automotive version
that is qualified for use in automotive applications. This EVM uses the TAS3108
version, and the active/passive parts used are not qualified for automotive use.
This EVM is delivered together with two boards: an input board with SPDIF, ACD, and
USB for PC control, and an output board with DACs and a SPDIF transmitter. This
system is a complete eight-channel digital audio processor system that includes digital
input/output (S/PDIF), analog inputs/outputs, interface to PC, and DAP features like
digital volume control, input and output mixers, auto mute, equalization, tone controls,
loudness, dynamic range compression, and surround effects.
The TAS3108 applications could be automotive sound systems, digital televisions,
home theater systems, mini-component audio systems, and pro-audio.
Replacing the DAC-DIT output board with one of the TI PurePath digital-amplifier EVMs
makes it possible to test the TAS3108 with a speaker connected directly. Examples of
EVMs that can be connected include, but are not limited to, TAS5508-5142K7EVM,
TAS5518-5152K8EVM, TAS5518-5182C8EVM2, and TAS5086-5186V6EVM. This
system is designed for home theater applications such as A/V receivers, DVD
mini-component systems, home theater in a box (HTIB), DVD receivers, or plasma
display panels (PDP).
Chapter 1
2006
Topic .................................................................................................. Page
1.1 TAS3108EVM2 System Features ................................................... 8
1.2 PCB Key Map ............................................................................. 9
1.3 Input Board .............................................................................. 10
1.4 Output Board ............................................................................ 11
SLEU065A – SEPTEMBER 2005 – Revised NOVEMBER 2006 Overview 7
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8-Channel
Analog
Input
USB
Interface
Optical and
Coaxial
S/PDIF Input
Control Inferface
I2C Bus
I2S Bus
TAS3108EVM2
Module
TAS3108
EEPROM
Control Inferface
I2C Bus
I2S Bus
Power
Supplies
±15V
Power
Supplies
+5V
±12V
8-Channel
Analog
Output
Optical and
Coaxial
S/PDIF Ouput
Example
TI DAC-DIT Board
Example
TI Input-USB Board
TAS3108EVM2 System Features
1.1 TAS3108EVM2 System Features
• Socketed EEPROM for download of program and coefficients
• Eight-channel analog-to-digital converter, four PCM1802 devices, 102-dB DYR A-weighted
• Eight-channel digital-to-analog converter, two PCM4104 devices, 116-dB DYR A-weighted
• Two-channel SPDIF receiver, coaxial and optical input
• Two-channel SPDIF transmitter, coaxial and optical output
• I2S input and output connectors
• USB-to-PC connection for software control
• Double-sided plated-through PCB layout
Overview 8 SLEU065A – SEPTEMBER 2005 – Revised NOVEMBER 2006
Figure 1-1. TAS3108EVM2 System
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1.2 PCB Key Map
Physical structure for the TAS3108EVM2 is illustrated in Figure 1-2 .
PCB Key Map
Figure 1-2. Physical Structure for the TAS3108EVM2 (Rough Outline)
U41 is the TAS3108 device. U33 is the EEPROM for program and coefficient storage. Digital audio data
(I2S) is input on J12 and output on J22. J11 is used for I2C control, reset signal, and power-supply
voltage. Signals in J11 are duplicated in J21 for further control of a DAC output board or speaker amplifier.
D31, a green LED, indicates that the power-supply voltage is within specifications and that the device is
brought out of reset.
SLEU065A – SEPTEMBER 2005 – Revised NOVEMBER 2006 Overview 9
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