Texas Instruments TAS3108EVM2 User manual

TAS3108EVM2 User's GuideEvaluation Module for theTAS3108 Digital Audio Signal Processor
User's Guide
NOVEMBER 2006 Digital Audio and Video Products
SLEU065A

TAS3108EVM2 User's Guide
Evaluation Module for theTAS3108 Digital Audio Signal Processor
User's Guide
Literature Number: SLEU065ASEPTEMBER 2005 – Revised NOVEMBER 2006

Contents
Preface ............................................................................................................................... 5
1 Overview ................................................................................................................... 71.1 TAS3108EVM2 System Features ................................................................................ 81.2 PCB Key Map ....................................................................................................... 91.3 Input Board ......................................................................................................... 101.4 Output Board ....................................................................................................... 11
2 Quick Setup Guide .................................................................................................... 132.1 Electrostatic Discharge Warning ................................................................................ 142.2 Unpacking the EVM ............................................................................................... 142.3 Power Supply Setup .............................................................................................. 152.4 Digital Audio Inputs/Outputs ..................................................................................... 152.5 Master/Slave Mode ............................................................................................... 152.6 TAS3108 Software Installation .................................................................................. 16
3 System Interfaces ..................................................................................................... 173.1 Control Interface (J11), Input .................................................................................... 183.2 Digital Audio Interface, Input (J12) .............................................................................. 193.3 Control Interface, Output (J21) .................................................................................. 203.4 Digital Audio Interface, output (J22) ............................................................................ 213.5 Connectors on the Input-USB board ............................................................................ 213.5.1 Analog Inputs ............................................................................................. 213.5.2 SPDIF Coax ............................................................................................... 223.5.3 AP PSIA Interface ........................................................................................ 223.5.4 I2C Connector (J301) .................................................................................... 243.5.5 Control Interface (J800) ................................................................................. 243.6 Connectors on the DAC8-DIT2 Board .......................................................................... 253.6.1 Analog Outputs ........................................................................................... 253.6.2 3.6.2 SPDIF Coax ........................................................................................ 26
Important Notices ............................................................................................................... 27
SLEU065A – SEPTEMBER 2005 – Revised NOVEMBER 2006 Contents 3Submit Documentation Feedback

List of Figures
1-1 TAS3108EVM2 System ..................................................................................................... 81-2 Physical Structure for the TAS3108EVM2 (Rough Outline) ............................................................ 91-3 Input Board Outline ........................................................................................................ 101-4 Physical Structure for Output DAC8-DIT2 Board Outline ............................................................. 111-5 Complete System .......................................................................................................... 122-1 TAS3108 GDE Window ................................................................................................... 163-1 J200 …J203 Pin Pumbers ................................................................................................ 213-2 J140 Pin Numbers ......................................................................................................... 223-3 AP PSIA Default Setting ................................................................................................... 223-4 AP PSIA Settings Using External I2S Source .......................................................................... 233-5 AP PSIA Interface Pin Numbers ......................................................................................... 233-6 J301 Pin Numbers ......................................................................................................... 243-7 J71 to J74 Pin Numbers ................................................................................................... 253-8 J62 Pin Numbers ........................................................................................................... 26
List of Tables
1 Related Documentation from Texas Instruments ........................................................................ 62-1 Recommended Supply Voltages for DAC8DIT2 Board ............................................................... 153-1 J11 Pin Description ........................................................................................................ 183-2 J12 Pin Description ........................................................................................................ 193-3 J21 Pin Description ........................................................................................................ 203-4 J22 Pin Description ........................................................................................................ 213-5 J200 Pin Description (Similar for J201 to J203) ........................................................................ 213-6 J140 Pin Description ....................................................................................................... 223-7 AP PSIA Pin Description .................................................................................................. 233-8 J301 Pin Description ....................................................................................................... 243-9 J800 Pin Description ....................................................................................................... 243-10 J71 Pin Description ........................................................................................................ 253-11 J62 Pin Description ........................................................................................................ 26
4List of Figures SLEU065A – SEPTEMBER 2005 – Revised NOVEMBER 2006Submit Documentation Feedback

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.
PrefaceSLEU065A – SEPTEMBER 2005 – Revised NOVEMBER
2006
Read This First
About This Manual
This manual describes the operation of the TAS3108EVM2 evaluation module from Texas Instruments.
How to Use this ManualThis document contains the following chapters:
Chapter 1 - Overview
Chapter 2 - Quick Setup Guide
Chapter 3 - System Interfaces
Information About Cautions and WarningsThis manual may contain cautions and warnings.
The information in a caution or a warning is provided for your protection. Please read each caution andwarning carefully.
SLEU065A – SEPTEMBER 2005 – Revised NOVEMBER 2006 Read This First 5Submit Documentation Feedback

www.ti.com
Related Documentation from Texas Instruments
Related Documentation from Texas InstrumentsThe following table contains a list of data manuals that have detailed descriptions of the integrated circuitsused in the design of the TAS3108EVM2. The data manuals can be obtained at the URLhttp://www.ti.com .
Table 1. Related Documentation from Texas Instruments
PART NUMBER LITERATURE NUMBER
TAS3108 SLES152TLV1117-33 SLVS561TPS3825-33 SLVS165
Additional Documentation
1. TAS3108EVM2 Application Report2. Graphical Development tool (GDE) for TAS3108 (GDE version 1.11 or later)3. General Application NotesTrademarks
PurePath Digital is a trademark of Texas Instruments.
All other trademarks are the property of their respective owners.
6Read This First SLEU065A – SEPTEMBER 2005 – Revised NOVEMBER 2006Submit Documentation Feedback

Chapter 1SLEU065A – SEPTEMBER 2005 – Revised NOVEMBER
2006
Overview
The TAS3108EVM2 PurePath Digital™ customer evaluation amplifier moduledemonstrates the digital audio processor TAS3108/TAS3108IA from Texas Instruments(TI).
TAS3108DCP/TAS3108IADCP is a fully programmable high-performance audioprocessor. It uses an efficient, custom, multi-instruction programming environmentoptimized for digital audio processing algorithms. The TAS3108/TAS3108IAarchitecture provides high-quality audio processing by using a 48-bit data path, 28-bitfilter coefficients, and a single-cycle 28 ×48-bit multiplier with a 76-bit accumulator. Anembedded 8051 microprocessor provides algorithm and data control for theTAS3108/TAS3108IA. The TAS3108 is the commercial version, intended for homeaudio and other commercial applications. The TAS3108IA is the automotive versionthat is qualified for use in automotive applications. This EVM uses the TAS3108version, 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, andUSB for PC control, and an output board with DACs and a SPDIF transmitter. Thissystem is a complete eight-channel digital audio processor system that includes digitalinput/output (S/PDIF), analog inputs/outputs, interface to PC, and DAP features likedigital 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 EVMsmakes it possible to test the TAS3108 with a speaker connected directly. Examples ofEVMs that can be connected include, but are not limited to, TAS5508-5142K7EVM,TAS5518-5152K8EVM, TAS5518-5182C8EVM2, and TAS5086-5186V6EVM. Thissystem is designed for home theater applications such as A/V receivers, DVDmini-component systems, home theater in a box (HTIB), DVD receivers, or plasmadisplay panels (PDP).
Topic .................................................................................................. Page
1.1 TAS3108EVM2 System Features ................................................... 81.2 PCB Key Map ............................................................................. 91.3 Input Board .............................................................................. 101.4 Output Board ............................................................................ 11
SLEU065A – SEPTEMBER 2005 – Revised NOVEMBER 2006 Overview 7Submit Documentation Feedback

www.ti.com
1.1 TAS3108EVM2 System Features
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
•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
Figure 1-1. TAS3108EVM2 System
Overview 8 SLEU065A – SEPTEMBER 2005 – Revised NOVEMBER 2006Submit Documentation Feedback

www.ti.com
1.2 PCB Key Map
PCB Key Map
Physical structure for the TAS3108EVM2 is illustrated in Figure 1-2 .
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-supplyvoltage. 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 isbrought out of reset.
SLEU065A – SEPTEMBER 2005 – Revised NOVEMBER 2006 Overview 9Submit Documentation Feedback

www.ti.com
1.3 Input Board
M UTE /UNM UTE
RESET button (board )
Input indicator
Digitalinput select
ANALO G INPUT - Ch 1 and 2
ANALO G INPUT -Ch 3 and 4
ANALO G INPUT -Ch 5 and 6
DIGITAL INPUT -O ptical
DIGITAL INPUT -Coaxial
ANALO G INPUT -Ch 7 and 8
USB Connector
ANALO G Sam ple Rate
Input Indicator
DIGITAL INPUT - Optical
Digital Input Select
DIGITAL INPUT - Coaxial
ANALOG INPUT - Ch 3 and 4
ANALOG Sample Rate
ANALOG INPUT - Ch 5 and 6
ANALOG INPUT - Ch 7 and 8
USB Connector
RESET Button (Board)
ANALOG INPUT - Ch 1 and 2
MUTE / UNMUTE
Input Board
The input board contains an eight-channel ADC, SPDIF receiver, and USB connection. Buttons for MUTE,RESET, and selection between 48-kHz and 96-kHz sample rate.
Physical structure for the input-USB board is illustrated in Figure 1-3 .
Figure 1-3. Input Board Outline
Overview 10 SLEU065A – SEPTEMBER 2005 – Revised NOVEMBER 2006Submit Documentation Feedback

www.ti.com
1.4 Output Board
SPDIF DATA OUT select
SPDIF Output - Coaxial
SPDIF Output - Optical
ANALOG OUTPUT - Ch 7 and 8
ANALOG OUTPUT - Ch 5 and 6
ANALOG OUTPUT - Ch 3 and 4
+/-15 V Power Supply Connector
ANALOG OUTPUT - Ch 1 and 2
SDIN1 SDIN2 SDIN3 SDIN4
U301 U301 U301 U301
Output Board
•Eight-channel digital-to-analog converter, two PCM4104 devices, automatic sample-rate detection, andsupports 44.1 kHz, 48 kHz, and 96 kHz in this application. Relation between master clock and samplerate clock must be 256. 4-Vrms for 0-dB and 116-dB DYR A-weighted.•Two-channel digital audio output, SPDIF format, DIT4192, optical and electrical output• ± 12-V and 5-V power-supply regulators
The physical structure of the output DAC8-DIT2 board is illustrated in Figure 1-4 .
Figure 1-4. Physical Structure for Output DAC8-DIT2 Board Outline
SLEU065A – SEPTEMBER 2005 – Revised NOVEMBER 2006 Overview 11Submit Documentation Feedback

www.ti.com
Output Board
A picture of the complete system is shown in Figure 1-5 . The input board is to the left, the TAS3108EVM2is in the middle, and the output board is to the right.
Figure 1-5. Complete System
12 Overview SLEU065A – SEPTEMBER 2005 – Revised NOVEMBER 2006Submit Documentation Feedback

Chapter 2SLEU065A – SEPTEMBER 2005 – Revised NOVEMBER
2006
Quick Setup Guide
This chapter describes the TAS3108EVM2 board, with regard to power supplies andsystem interfaces. The chapter provides information regarding handling and unpacking,absolute operating conditions, and a description of the factory default switch andjumper configuration.
This chapter provides a step-by-step guide to configuring the TAS3108EVM2 for deviceevaluation.
Topic .................................................................................................. Page
2.1 Electrostatic Discharge Warning ................................................. 142.2 Unpacking the EVM ................................................................... 142.3 Power Supply Setup .................................................................. 152.4 Digital Audio Inputs/Outputs ...................................................... 152.5 Master/Slave Mode .................................................................... 152.6 TAS3108 Software Installation .................................................... 16
SLEU065A – SEPTEMBER 2005 – Revised NOVEMBER 2006 Quick Setup Guide 13Submit Documentation Feedback

www.ti.com
2.1 Electrostatic Discharge Warning
CAUTION
Failure to observe ESD handling procedues may result in damage
to EVM components.
2.2 Unpacking the EVM
Electrostatic Discharge Warning
Many of the components on the TAS3108EVM2 are susceptible to damage by electrostatic discharge(ESD). Customers are advised to observe proper ESD handling precautions when unpacking and handlingthe EVM, including the use of a grounded wrist strap at an approved ESD workstation.
Upon opening the TAS3108EVM2 package, please ensure that the following items are included:•One TAS3108EVM2 board using one TAS3108DCP•One TI input-USB board for interfacing TAS3108EVM2 with SPDIF receiver and eight-channelanalog-to-digital converter and USB for PC control•One TI DAC8-DIT2 board for interfacing TAS3108EVM2 with SPDIF transmitter and digital-to-analogconverter outputs and power-supply regulators•Two signal interface IDC cables for connection to an I2S back-end like the attached TI DAC8-DIT2board, 14 pin•Two control interface IDC cables for connection to an I2C back-end like the attached TI DAC8-DIT2board, 34 pin•One cable for connecting input-USB board to a USB port on a PC for TAS3108 control by software•One cable for connecting DAC8-DIT2 board to the power supplies•One PurePath CD-ROM containing data sheets, application notes, user's guides, gerber files, and PCsoftware tools
If any of these items are missing, please contact the Texas Instruments Product Information Centernearest you to obtain a replacement.
Connect the input-USB board to TAS3108EVM2 using the two included delivered IDC cables. ConnectTAS3108EVM2 board to DAC8-DIT2 board using the two included IDC cables.
Quick Setup Guide14 SLEU065A – SEPTEMBER 2005 – Revised NOVEMBER 2006Submit Documentation Feedback

www.ti.com
2.3 Power Supply Setup
CAUTION
Applying voltages above the limitations given in the table above
may cause permanent damage to your hardware.
2.4 Digital Audio Inputs/Outputs
2.5 Master/Slave Mode
Power Supply Setup
The TAS3108EVM2 is powered via the DAC8-DIT2 board or another output board, like aTAS5086-5186EVM. The DAC8-DIT2 board generates a +5-V supply that is fed to the TAS3108EVM2.The +5-V supply is further regulated to +3.3 V with the aid of a low-dropout linear regulator, U31.
Set the power supplies to ±15 V, switch off the power supply, connect all cables to the EVM, and switchon the power supply. Current consumption should be less than is shown in Table 2-1 . If it is higher, switchoff the power supply and double check the cabling.
Table 2-1. Recommended Supply Voltages for DAC8DIT2 Board
DESCRIPTION VOLTAGE LIMITATIONS CURRENT REQUIREMENT CABLE
+15 V +14.5 V to +15.5 V 0.3 A J31 pin 2–15 V –15.5 V to –14.4V 0.1 A J31 pin 1
The digital audio inputs can be connected to the board in two ways, either in the SPDIF format on thecoaxial connector or optical TosLink input or in I2S format on connector J12. The pinouts are shown inSection 3.5 and Section 3.6 .
The digital audio outputs can be both SPDIF and I2S. SPDIF format is output on the coaxial connector(J62) or optical TosLink® connector (J61), or I2S format is output on connector J22. Jumpers J301 andJ302 select the SDATA line to feed to the SPDIF transmitter.
The TAS3108EVM2 is delivered in Slave mode.
The SPDIF receiver, on the input board, is the MCLK clock master in this system.
The digital audio outputs can be both SPDIF and I2S. SPDIF format is output on coaxial connector, J62,or optical TosLink, J61, or in I2S format on connector J22. Jumpers J301 and J302 selects the SDATAline to feed to the SPDIF transmitter.
After each reset, either auto-generated during power-up sequence or manual pressing RESET button, theinput-USB board is always in the following configuration:•Mute enabled•Analog input set to 48-kHz sample rate
SLEU065A – SEPTEMBER 2005 – Revised NOVEMBER 2006 Quick Setup Guide 15Submit Documentation Feedback

www.ti.com
2.6 TAS3108 Software Installation
TAS3108 Software Installation
To start up a PurePath EVM, use following procedure:1. Turn on all power supplies before connecting USB interface.2. Connect USB interface and press RESET button.3. Start GUI software and press RESET in GUI window. Make sure that the "USB attached" LED is onand that the status indicator changes to "OK".4. Load EVM configuration file. Ensure that the correct file is selected, according to the EVM in use.5. Press MUTE to unmute the EVM.6. The EVM is now ready to use.
The TAS3108 GDE and IDE software provide easy programming of the TAS3108 and enableprogramming of the EEPROM on the EVM board.1. Insert the PurePath CD-ROM•If it does not autorun, run the ReadMe file.•Select "SOFTWARE" in the menu to the left.•Select the TAS3108 tools, and follow the instructions given to install.2. After installation, turn on power supplies and connect USB cable to input-USB board.3. Start GDE program from the Windows Start menu. Startup of GDE requires a few seconds.
Figure 2-1. TAS3108 GDE Window
To test the connection from PC to EVM, load the TAS3108EVM2 test file (helloworld.pfw), located inC:\Program Files\Texas Instruments Inc\TAS3108 Development Tools\Examples\HelloWorld.pfw.
For more advanced use of the GDE, see the GDE online help, GDE release notes, and TAS3108 MCUprogrammer's reference guide.
16 Quick Setup Guide SLEU065A – SEPTEMBER 2005 – Revised NOVEMBER 2006Submit Documentation Feedback

Chapter 3SLEU065A – SEPTEMBER 2005 – Revised NOVEMBER
2006
System Interfaces
This chapter describes the TAS3108EVM2 board regard to power supplies and systeminterfaces.
Topic .................................................................................................. Page
3.1 Control Interface (J11), Input ...................................................... 183.2 Digital Audio Interface, Input (J12) .............................................. 193.3 Control Interface, Output (J21) .................................................... 203.4 Digital Audio Interface, output (J22) ............................................ 213.5 Connectors on the Input-USB board ............................................ 213.6 Connectors on the DAC8-DIT2 Board .......................................... 25
SLEU065A – SEPTEMBER 2005 – Revised NOVEMBER 2006 System Interfaces 17Submit Documentation Feedback

www.ti.com
3.1 Control Interface (J11), Input
Control Interface (J11), Input
This interface connects the TAS3108EVM2 board to a TI input-USB board. This is a general-purposeinterface, so not all signals are used by the TAS3108. Unused signals are shaded in Table 3-1 .
Table 3-1. J11 Pin Description
NET-NAME ATPIN NO. DESCRIPTIONSCHEMATICS
1 GND Ground2 RESERVED
3 GND Ground4 RESET System reset (bidirectional). Activate MUTE before RESET for quiet reset.5 RESERVED
6 MUTE Ramp volume from any setting to noiseless soft mute. Mute can also be activated by I2C.7 PDN Power down. TAS3108 goes ino power down state when activated.8 RESERVED
9 RESERVED
10 SDA I2C data clock11 GND Ground12 SCL I2C bit clock13 GPIO114 GPIO215 GPIO316 GPIO4 General-purpose input/output 4, used to reset the TAS3108 after programming.17 GND Ground18 GPIO519 GPIO620 SD Shutdown reporting. Used for speaker-output EVMs.21 RESERVED
22 OTW Temperature warning. Used for speaker-output EVMs.23 RESERVED
24 RESERVED
25 GND Ground26 GND Ground27 RESERVED
28 RESERVED
29 RESERVED
30 RESERVED
31 GND Ground32 GND Ground33 +5V +5-Vdc power supply (output)34 +5V +5-Vdc power supply (output)
System Interfaces18 SLEU065A – SEPTEMBER 2005 – Revised NOVEMBER 2006Submit Documentation Feedback

www.ti.com
3.2 Digital Audio Interface, Input (J12)
Digital Audio Interface, Input (J12)
The digital audio interface contains digital audio signal data (I2S), clocks, etc. See the TAS3108 datamanual for signal timing and details not covered in this document.
Table 3-2. J12 Pin Description
PIN NET-NAME AT DESCRIPTIONNUMBER SCHEMATICS
1 GND Ground2 MCLK Master clock input3 GND Ground4 SDIN1 I2S data 1, Channel 1 and 25 SDIN2 I2S data 2, Channel 3 and 46 SDIN3 I2S data 3, Channel 5 and 67 SDIN4 I2S data 4, Channel 7 and 88 Reserved9 Reserved10 GND Ground11 SCLK I2S bit clock12 GND Ground13 LRCLK I2S left-right clock14 GND Ground15 Reserved16 GND Ground
SLEU065A – SEPTEMBER 2005 – Revised NOVEMBER 2006 System Interfaces 19Submit Documentation Feedback

www.ti.com
3.3 Control Interface, Output (J21)
Control Interface, Output (J21)
This interface connects the TAS3108EVM2 board to a TI DAC8-DIT2 output board or a general amplifierpower EVM. This is a general-purpose interface, so not all signals are used by the TAS3108. Unusedsignals are shaded in Table 3-3 .
Table 3-3. J21 Pin Description
NET-NAME ATPIN NO. DESCRIPTIONSCHEMATICS
1 GND Ground2 RESERVED
3 GND Ground4 RESET System reset (bidirectional). Activate MUTE before RESET for quiet reset.5 RESERVED
6 MUTE Ramp volume from any setting to noiseless soft mute. Mute can also be activated by I2C.7 PDN Power down. TAS3108 goes ino power down state when activated.8 RESERVED
9 RESERVED
10 SDA I2C data clock11 GND Ground12 SCL I2C bit clock13 GPIO114 GPIO215 GPIO316 GPIO4 General-purpose input/output 4, used to reset the TAS3108 after programming.17 GND Ground18 GPIO519 GPIO620 SD Shutdown reporting. Used for speaker output EVMs.21 RESERVED
22 OTW Temperature warning. Used for speaker output EVMs.23 RESERVED
24 RESERVED
25 GND Ground26 GND Ground27 RESERVED
28 RESERVED
29 RESERVED
30 RESERVED
31 GND Ground32 GND Ground33 +5V +5-Vdc power supply (output)34 +5V +5-Vdc power supply (output)
System Interfaces20 SLEU065A – SEPTEMBER 2005 – Revised NOVEMBER 2006Submit Documentation Feedback