Texas Instruments TLV320AIC3104EVM Manuel utilisateur

User's GuideSLAU218 – August 2007

TLV320AIC3104EVM and TLV320AIC3104EVM-PDK

This user's guide describes the characteristics, operation, and use of the TLV320AIC3104EVM, both byitself and as part of the TLV320AIC3104EVM-PDK. This evaluation module (EVM) is a complete stereoaudio codec with several inputs and outputs, extensive audio routing, mixing, and effects capabilities. Acomplete circuit description, schematic diagram, and bill of materials are also included.

The following related documents are available through the Texas Instruments Web site at www.ti.com .

EVM-Compatible Device Data Sheets

Device Literature Number

TLV320AIC3104 SLAS510TAS1020B SLES025REG1117-3.3 SBVS001TPS767D318 SLVS209SN74LVC125A SCAS290SN74LVC1G125 SCES223SN74LVC1G07 SCES296

Contents1 EVM Overview ............................................................................................................... 32 EVM Description and Basics ............................................................................................... 33 TLV320AIC3104EVM-PDK Setup and Installation ...................................................................... 74 TLV320AIC3104EVM Software ............................................................................................ 9Appendix A EVM Connector Descriptions ................................................................................... 37Appendix B TLV320AIC3104EVM Schematic ............................................................................... 41Appendix C TLV320AIC3104EVM Layout Views ........................................................................... 42Appendix D TLV320AIC3104EVM Bill of Materials ......................................................................... 45Appendix E USB-MODEVM Schematic ...................................................................................... 46Appendix F USB-MODEVM Bill of Materials ................................................................................ 47Appendix G USB-MODEVM Protocol ......................................................................................... 49

List of Figures

1 TLV320AIC3104EVM-PDK Block Diagram .............................................................................. 42 Default Software Screen ................................................................................................... 83 Device Selection Window ................................................................................................... 94 Interface Selection Window ................................................................................................ 95 I

C Address Selection Window .......................................................................................... 106 Default Configuration Tab ................................................................................................. 127 Audio Input Tab ............................................................................................................ 138 Bypass Paths ............................................................................................................... 149 Audio Interface Tab ....................................................................................................... 1510 Clocks Tab ................................................................................................................. 1711 GPIO Tab ................................................................................................................... 1912 AGC Tab .................................................................................................................... 21I

S, I

C are trademarks of Koninklijke Philips Electronics N.V.Windows is a trademark of Microsoft Corporation.SPI is a trademark of Motorola, Inc.LabView is a trademark of National Instruments.

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13 Left AGC Settings .......................................................................................................... 2214 Advanced .................................................................................................................... 2215 Filters Tab .................................................................................................................. 2316 ADC High Pass Filters .................................................................................................... 2417 ADC High-Pass Filter Settings ........................................................................................... 2418 DAC Filters .................................................................................................................. 2519 De-emphasis Filters ........................................................................................................ 2520 Enabling Filters ............................................................................................................ 2621 Shelf Filters ................................................................................................................. 2622 EQ Filters ................................................................................................................... 2723 Analog Simulation Filters ................................................................................................. 2724 Preset Filters ............................................................................................................... 2825 User Filters ................................................................................................................. 2826 3D Effect Settings ......................................................................................................... 2927 Output Stage Configuration Tab ......................................................................................... 3028 DAC/Line Outputs Tab .................................................................................................... 3229 High-Power Outputs Tab ................................................................................................. 3430 Command Line Interface Tab ............................................................................................ 3531 File Menu ................................................................................................................... 36C-1 Assembly layer ............................................................................................................. 42C-2 Top Layer .................................................................................................................... 42C-3 Layer 3 ....................................................................................................................... 43C-4 Layer 4 ....................................................................................................................... 43C-5 Silk Screen .................................................................................................................. 44C-6 Bottom Layer ................................................................................................................ 44
List of Tables
1 USB-MODEVM SW2 Settings ............................................................................................. 52 List of Jumpers ............................................................................................................... 5A-1 Analog Interface Pinout .................................................................................................... 37A-2 Alternate Analog Connectors ............................................................................................. 38A-3 Digital Interface Pinout..................................................................................................... 39A-4 Power Supply Pinout ....................................................................................................... 40D-1 TLV320AIC3104EVM Bill of Materials ................................................................................... 45F-1 USB-MODEVM Bill of Materials .......................................................................................... 47G-1 USB Control Endpoint HIDSETREPORT Request .................................................................... 49G-2 Data Packet Configuration ................................................................................................ 49G-3 GPIO Pin Assignments .................................................................................................... 52
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1 EVM Overview

1.1 Features

1.2 Introduction

2 EVM Description and Basics

2.1 TLV320AIC3104EVM-PDK Block Diagram

EVM Overview

•Full-featured evaluation board for the TLV320AIC3104 stereo audio codec.•Modular design for use with a variety of digital signal processor (DSP) and microcontroller interfaceboards.

•USB connection to PC provides power, control, and streaming audio data for easy evaluation.•Onboard microphone for ADC evaluation•Connection points for external control and digital audio signals for quick connection to othercircuits/input devices.

The TLV320AIC3104EVM-PDK is a complete evaluation kit, which includes a universal serial bus(USB)-based motherboard and evaluation software for use with a personal computer (PC) running theMicrosoft Windows™ operating system (Win2000 or XP).

The TLV320AIC3104EVM is in the Texas Instruments modular EVM form factor, which provides directevaluation of the device performance and operating characteristics, and eases software development andsystem prototyping. This EVM is compatible with the 5-6K Interface Evaluation Module (SLAU104 ) and theHPA-MCUINTERFACE (SLAU106 ) from Texas Instruments and additional third-party boards whichsupport the Texas Instrument modular EVM format.

The TLV320AIC3104EVM-PDK is a complete evaluation/demonstration kit, which includes a USB-basedmotherboard called the USB-MODEVM Interface board and evaluation software for use with a personalcomputer running the Microsoft Windows operating systems.

The TLV320AIC3104EVM-PDK is operational with one USB cable connection to a personal computer. TheUSB connection provides power, control, and streaming audio data to the EVM for reduced setup andconfiguration. The EVM also provides external control signals, audio data, and power for advancedoperation, which allows prototyping and connection to the rest of the development or system evaluation.

This section provides information on the analog input and output, digital control, power and generalconnection of the TLV320AIC3104EVM.

The TLV320AIC3104EVM-PDK consists of two separate circuit boards, the USB-MODEVM and theTLV320AIC3104EVM. The USB-MODEVM is built around a TAS1020B streaming audio USB controllerwith an 8051-based core. The motherboard features two positions for modular EVM, or one double-wideserial modular EVM may be installed. The TLV320AIC3104EVM is one of the double-wide modular EVMthat is designed to work with the USB-MODEVM.

The simple diagram below (Figure 1 ) shows the how the TLV320AIC3104EVM is connected to theUSB-MODEVM. The USB-MODEVM Interface board is intended to be used in USB mode, where controlof the installed EVM is accomplished using the onboard USB controller device. Provision is made,however, for driving all the data buses (I

C, SPI™, I

S/AC97) externally. The source of these signals iscontrolled by SW2 on the USB-MODEVM. Refer to Table 1 for details on the switch settings.

The USB-MODEVM has two EVM positions that allow for the connection of two small evaluation moduleor one larger evaluation module. The TLV320AIC3104EVM is designed to fit over both of the smallerevaluation module slots as shown below.

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2.1.1 USB-MODEVM Interface Board

EVM Position 2

EVM Position 1

TLV320AIC310xEVM

Control Interface

TLV320AIC310x

TAS1020B

USB 8051

Microcontroller

USB

SPI, I C

I S, AC97

Audio Interface

USB-MODEVM

EVM Description and Basics

The simple diagram shown in Figure 1 shows only the basic features of the USB-MODEVM Interfaceboard.

Because the TLV320AIC3104EVM is a double-wide modular EVM, it is installed with connections to bothEVM positions, which connects the TLV320AIC3104 digital control interface to the I

C port realized usingthe TAS1020B, as well as the TAS1020B digital audio interface..

In the factory configuration, the board is ready to use with the TLV320AIC3104EVM. To view all thefunctions and configuration options available on the USB-MODEVM board, see the USB-MODEVMInterface Board schematic in Appendix E.

Figure 1. TLV320AIC3104EVM-PDK Block Diagram

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2.2 Default Configuration and Connections

2.2.1 USB-MODEVM

2.2.2 TLV320AIC3104 Jumper Locations

EVM Description and Basics

Table 1 provides a list of the SW2 settings on the USB=MODEVM. For use with the TLV320AIC3104EVM,SW-2 positions 1 through 7 should be set to ON, while SW-2.8 should be set to OFF.

Table 1. USB-MODEVM SW2 Settings

SW-2 Switch Number Label Switch Description

1 A0 USB-MODEVM EEPROM I

C Address A0ON: A0 = 0OFF: A0 = 12 A1 USB-MODEVM EEPROM I

C Address A1ON: A1 = 0OFF: A1 = 13 A2 USB-MODEVM EEPROM I

C Address A2ON: A2 = 0OFF: A2 = 14 USB I

S I

S Bus Source SelectionON: I

S Bus connects to TAS1020OFF: I

S Bus connects to USB-MODEVM J145 USB MCK I

S Bus MCLK Source SelectionON: MCLK connects to TAS1020OFF: MCLK connects to USB-MODEVM J146 USB SPI SPI Bus Source SelectionON: SPI Bus connects to TAS1020OFF: SPI Bus connects to USB-MODEVM J157 USB RST RST Source SelectionON: EVM Reset Signal comes from TAS1020OFF: EVM Reset Signal comes from USB-MODEVM J158 EXT MCK External MCLK SelectionON: MCLK Signal is provided from USB-MODEVM J10OFF: MCLK Signal comes from either selection of SW2-5

Table 2 provides a list of jumpers found on the EVM and their factory default conditions.

Table 2. List of JumpersDefaultJumper Position Jumper Description

JMP1 2-3 When connecting 2-3, mic bias comes from the MICBIAS pin on the device; when connecting 1-2, mic bias is supplied from thepower supply through a resistor, which the user must install.

JMP2 Installed Connects onboard Mic to Left Microphone Input.

JMP3 Installed Connects onboard Mic to Right Microphone Input.

JMP4 Installed Provides a means of measuring IOVDD current.

JMP5 Installed Provides a means of measuring AVDD_ADC current.

JMP6 Installed Provides a means of measuring DVDD current.

JMP7 Installed Provides a means of measuring DRVDD current.

JMP8 Installed Provides a means of measuring AVDD_DAC current.

JMP9 Installed Connects Analog and Digital Grounds.

JMP10 3-5

When connecting 3 to 5, I

C is selected as control mode; when connecting 1 to 3, SPI is selected as control mode. Whenconnecting 3 to 4, mode selection can be made by a logic level at J16.12

JMP11 3-5

In I

C control mode, this jumper sets the state of A0. When connecting 3 to 5, A0 = 0; when connecting 1 to 3, A0 = 1. In SPI controlmode, connecting 3 to 4, SPI /SS is provided from J16.2

JMP12 3-5

In I

C control mode, this jumper sets the state of A1. When connecting 3 to 5, A1 = 0; when connecting 1 to 3, A1 = 1. In SPI controlmode, connecting 3 to 4, SPI SCLK is provided from J16.3

JMP13 Installed When installed, shorts across the output capacitor on HPLOUT; remove this jumper if using AC-coupled output drive

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2.3 Analog Signal Connections

2.3.1 Analog Inputs

2.3.2 Analog Output

2.4 Digital Signal Connections

2.4.1 Digital Inputs and Outputs

2.4.2 Digital Controls

2.5 Power Connections

EVM Description and Basics

Table 2. List of Jumpers (continued)DefaultJumper Position Jumper Description

JMP14 Installed When installed, shorts across the output capacitor on HPLCOM; remove this jumper if using AC-coupled output drive

JMP15 Installed When installed, shorts across the output capacitor on HPROUT; remove this jumper if using AC-coupled output drive

JMP16 Installed When installed, shorts HPLCOM and HPRCOM. Use only if these signals are set to constant VCM.

JMP17 Installed When installed, shorts across the output capacitor on HPRCOM; remove this jumper if using AC-coupled output drive

JMP18 Open Selects onboard EEPROM as Firmware Source.

JMP19 Open When installed, allows the USB-MODEVM to hardware reset the device under user control

The analog inputs to the EVM can be connected through two different methods. The analog input sourcescan be applied directly to J13 (top or bottom side) or through the analog headers (J1-3 and J6) around theedge of the board. The connection details of each header/connector can be found in Appendix A.

The analog outputs to the EVM can be connected through two different methods. The analog outputs areavailable from the J13 and J14 (top or bottom) or they may be accessed through J4, J5, J7, J11,and J12at the edges of the board. The connection details can be found in Appendix A.

The digital inputs and outputs of the EVM can be monitored through J16 and J17. If external signals needto be connected to the EVM, digital inputs should be connected via J14 and J15 on the USB-MODEVMand the SW2 switch should be changed accordingly (see Section 2.2.1 ). The connector details areavailable in Section A.2 .

The digital control signals can be applied directly to J16 and J17 (top or bottom side). The modularTLV320AIC3104EVM can also be connected directly to a DSP interface board, such as the5-6KINTERFACE or HPA-MCUINTERFACE, or to the USB-MODEVM Interface board if purchased as partof the TLV320AIC3104EVM-PDK. See the product folders on the TI Web site for these evaluationmodules or the TLV320AIC3104 for a current list of compatible interface and/or accessory boards.

The TLV320AIC3104EVM can be powered independently when being used in stand-along operation or bythe USB-MODEVM when it is plugged onto the motherboard.

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2.5.1 Stand-Alone Operation

2.5.2 USB-MODEVM Operation

3 TLV320AIC3104EVM-PDK Setup and Installation

3.1 Software Installation

TLV320AIC3104EVM-PDK Setup and Installation

When used as a stand-alone EVM, power is applied to J15 directly, making sure to reference the suppliesto the appropriate grounds on that connector.

CAUTION

Verify that all power supplies are within the safe operating limits shown on theTLV320AIC3104 data sheet before applying power to the EVM.

J15 provides connection to the common power bus for the TLV320AIC3104EVM. Power is supplied on thepins listed in Table A-4 .

The TLV320AIC3104EVM-PDK motherboard (the USB-MODEVM Interface board) supplies power to J15of the TLV320AIC3104EVM. Power for the motherboard is supplied either through its USB connection orvia terminal blocks on that board.

The USB-MODEVM Interface board can be powered from several different sources:•USB

•6-Vdc to 10-Vdc AC/DC external wall supply (not included)•Lab power supply

When powered from the USB connection, JMP6 should have a shunt from pins 1–2 (this is the defaultfactory configuration). When powered from 6-V to 10-Vdc, either through the J8 terminal block or J9 barreljack, JMP6 should have a shunt installed on pins 2–3. If power is applied in any of these ways, onboardregulators generate the required supply voltages and no further power supplies are necessary.

If laboratory supplies are used to provide the individual voltages required by the USB-MODEVM Interface,JMP6 should have no shunt installed. Voltages are then applied to J2 (+5 VA), J3 (+5 VD), J4 (+1.8 VD),and J5 (+3.3 VD). The +1.8 VD and +3.3 VD can also be generated on the board by the onboardregulators from the +5VD supply; to enable this configuration, the switches on SW1 need to be set toenable the regulators by placing them in the ON position (lower position, looking at the board with textreading right-side up). If +1.8 VD and +3.3 VD are supplied externally, disable the onboard regulators byplacing SW1 switches in the OFF position.

Each power supply voltage has an LED (D1-D7) that lights when the power supplies are active.

The following section provides information on using the TLV320AIC3104EVM-PDK, including set up,program installation, and program usage.

Note: If using the EVM in stand-alone mode, the software should be installed per below, but thehardware configuration may be different.

1. Locate installation file on the CD-ROM included with the EVMs or download the latest version of thesoftware located on the AIC3104 Product Page . If downloading the software from the TI Web site, anoption is available to allow the user to be notified when the software is updated.2. Unzip the installation file by clicking on the self-extracting zip file.3. Install the EVM software by double-clicking the Setup executable and follow the directions. The usermay be prompted to restart their computer.

This should install all the TLV320AIC310x software and required drivers onto their PC.

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3.2 EVM Connections

TLV320AIC3104EVM-PDK Setup and Installation

1. Ensure that the TLV320AIC3104EVM is installed on the USB-MODEVM Interface board, aligning J13,J14, J15, J16, and J17 with the corresponding connectors on the USB-MODEVM.2. Verify that the jumpers and switches are in their default conditions.3. Attach a USB cable from the PC to the USB-MODEVM Interface board. The default configuration willprovide power, control signals, and streaming audio via the USB interface from the PC. On theUSB-MODEVM, LEDs D3-6 should light to indicate the power is being supplied from the USB.4. For the first connection, the PC should recognize new hardware and begin an initialization process.The user may be prompted to identify the location of the drivers or allow the PC to automaticallysearch for them. Allow the automatic detection option.5. Once the PC confirms that the hardware is operational, D2 on the USB-MODEVM should light toindicate that the firmware has been loaded and the EVM is ready for use. If the LED is not lite, verifythat the drivers were installed and trying to unplug and restart at Step 3.

After the TLV320AIC3104EVM-PDK software installation (described in Section 3.2 ) is complete, evaluationand development with the TLV320AIC3104 can begin.

The TLV320AIC310xEVM software can now be launched. The user should see an initial screen that lookssimilar to Figure 2 .

Figure 2. Default Software Screen

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4 TLV320AIC3104EVM Software

4.1 Device Selection for Operation With AIC3104EVM

4.2 Interface Selection

TLV320AIC3104EVM Software

The following section discusses the details and operation of the EVM software.

Note: For configuration of the codec, the TLV320AIC3104 block diagram located in theTLV320AIC3104 data sheet is a good reference to help determine the signal routing.

The software that is installed provides operation for several devices. An initial window should appear thatlooks like Figure 3 . For operation with the TLV320AIC3104EVM, the user should select AIC3104 from thepulldown menu and click Accept. The software will take a few seconds to configure the software foroperation before proceeding. A progress bar should appear and show the status of the configuration.

Figure 3. Device Selection Window

When the program first starts up, a small window (Figure 4 ) appears that gives two choices for the controlinterface: IC or SPI. Click on the interface that will be used by the EVM, as selected by the jumper settingsdetailed in Table 2 . The setting of J10 should agree with the selection.

C interface is the default interfaceused by the EVM.

Figure 4. Interface Selection Window

If the I

C interface is selected, a second window then appears which allows for selecting the address ofthe TLV320AIC3104. This window (see Figure 5 ) has two sliders for setting the state of A0 and A1. Toallow proper communication with the EVM, these should match the settings of J11 and J12 (Table 2 ).When A0 and A1 are adjusted, the correct device address will be shown. Note that the actual I

C addressshown and the address for the software may be different. This is done for programming reasons and thecorrect address should be used for system development .

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TLV320AIC3104EVM Software

If the I

C address is desired to be changed at any time during normal operation of the EVM, this menu canalso be accessed from the pulldown menu under the Configuration item. This function can be used to helpprogram multiple devices.

Figure 5. I

C Address Selection Window

Note: For operation of the EVM in the default status, no changes are required on this panel. Thedefault settings are A1=A0=0. Changes to this panel are only required when operating theEVM with a specific I

C address (other than default) or when evaluating multiple EVM.

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