Texas Instruments TLV320AIC12KEVMB-K User manual

User's GuideSLAU229B – October 2007 – Revised August 2008
TLV320AIC12KEVMB-K and TLV320AIC14KEVMB-K User's
Guide
This user's guide describes the characteristics, operation, and use of evaluation modulesTLV320AIC12KEVMB and TLV320AIC14KEVMB, both as stand-alone and as kits(TLV320AIC12KEVMB-K and TLV320AIC14KEVMB-K). A complete circuit description, schematic diagramand 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
TLV320AIC12K/14K SLWS115ETAS1020B SLES025REG1117-3.3 SBVS001TPS767D318 SLVS209SN74LVC125A SCAS290SN74LVC1G125 SCES223SN74LVC1G07 SCES296
Contents1 EVM Overview ............................................................................................................... 32 Analog Interface .............................................................................................................. 33 Digital Interface .............................................................................................................. 44 Power Supplies .............................................................................................................. 65 EVM Operation ............................................................................................................... 66 Kit Operation ................................................................................................................. 77 EVM Bill of Materials ....................................................................................................... 29Appendix A TLV320AIC12KEVMB/14KEVMB Schematic ................................................................. 32Appendix B USB-MODEVM Schematic ...................................................................................... 33
List of Figures
1 TLV320AIC12KEVMB-K/14KEVMB-K Block Diagram .................................................................. 82 Default Software Screen .................................................................................................. 103 Information Tab ............................................................................................................. 124 Sounds and Audio Devices Properties .................................................................................. 135 Preset Configurations ...................................................................................................... 146 Device Controls Tab ....................................................................................................... 157 Control Register 1 Tab .................................................................................................... 168 Control Register 2 Tab .................................................................................................... 179 Control Register 3 Tab .................................................................................................... 1710 Control Register 4 Tab .................................................................................................... 1811 Control Register 5 Tab .................................................................................................... 1812 Control Register 6 Tab .................................................................................................... 19SMARTDM is a trademark of Texas Instruments.I
2
C is a trademark of Koninklijke Philips Electronics N.V.Windows is a registered trademark of Microsoft Corporation.LabView is a trademark of National Instruments.
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13 Command Line Interface Tab ............................................................................................ 2014 File Menu .................................................................................................................... 2115 Options Menu ............................................................................................................... 2116 Help .......................................................................................................................... 22
List of Tables
1 Analog Interface Pinout ..................................................................................................... 32 Alternate Analog Connectors ............................................................................................... 43 Digital Interface Pinout ...................................................................................................... 44 Power Supply Pinout ........................................................................................................ 65 List of Jumpers ............................................................................................................... 76 USB-MODEVM SW2 Settings ............................................................................................. 97 USB Control Endpoint HIDSETREPORT Request .................................................................... 228 Data Packet Configuration ................................................................................................ 239 GPIO Pin Assignments .................................................................................................... 2510 TLV320AIC12KEVMB/14KEVMB Bill of Materials ..................................................................... 2911 USB-MODEVM Bill of Materials .......................................................................................... 30
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1 EVM Overview
1.1 Features
1.2 Introduction
2 Analog Interface
www.ti.com EVM Overview
•Full-featured evaluation board for the TLV320AIC12K/14K audio codec•TLV320AIC12KEVMB-K/14KEVMB-K features USB connectivity for quick and easy setup.•Intuitive evaluation software•Easy interfacing to multiple analog sources•Analog output signals from the TLV320AIC12K/14K are available on top and bottom connectors.•On-board headphone jack, external microphone jack and electret microphone are included•Digital control signals can be applied directly to top and bottom connectors.
The TLV320AIC12KEVMB-K/14KEVMB-K is a complete evaluation/demonstration kit, which includes aUSB-based motherboard called the USB-MODEVM Interface board and evaluation software for use with apersonal computer running Microsoft Windows
®
operating systems. Provisions are made for connecting allaudio inputs and outputs either from the modular connectors or with on-board terminals, a headphonejack, and external microphone jack. An on-board electret microphone is also provided.
For maximum flexibility, the TLV320AIC12KEVMB/14KEVMB is designed for easy interfacing to multipleanalog sources. Samtec part numbers SSW-110-22-F-D-VS-K and TSM-110-01-T-DV-P provide aconvenient 10-pin dual row header/socket combination at J1 and J2. These headers/sockets provideaccess to the analog input and output pins of the device. Consult Samtec at www.samtec.com or call1-800-SAMTEC-9 for a variety of mating connector options. Table 1 summarizes the analog interfacepinout for the TLV320AIC12KEVMB/14KEVMB.
Table 1. Analog Interface Pinout
PIN NUMBER SIGNAL DESCRIPTION
J1.1 OUTM1 Inverting output of the DACJ1.2 OUTP1 Noninverting output of the DACJ1.3 OUTMV Programmable virtual ground for the output of OUTP2 and OUTP3J1.4 OUTP2 Analog output number 2 from the 16- Ωdriver
J1.5 OUTMV Programmable virtual ground for the output of OUTP2 and OUTP3J1.6 OUTMV Programmable virtual ground for the output of OUTP2 and OUTP3J1.7 OUTMV Programmable virtual ground for the output of OUTP2 and OUTP3J1.8 OUTP2 Analog output number 3 from the 16- ΩdriverJ1.9 AGND Analog GroundJ1.10 NC Not ConnectedJ1.11 AGND Analog GroundJ1.12 NC Not ConnectedJ1.13 AGND Analog GroundJ1.14 NC Not ConnectedJ1.15 NC Not ConnectedJ1.16 NC Not ConnectedJ1.17 AGND Analog GroundJ1.18 NC Not ConnectedJ1.19 AGND Analog GroundJ1.20 NC Not ConnectedJ2.1 INM2 Inverting analog input 2
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3 Digital Interface
Digital Interface www.ti.com
Table 1. Analog Interface Pinout (continued)
PIN NUMBER SIGNAL DESCRIPTION
J2.2 INP2 Noninverting analog input 2J2.3 NC Not ConnectedJ2.4 NC Not ConnectedJ2.5 NC Not ConnectedJ2.6 NC Not ConnectedJ2.7 INM1 Inverting analog input 1J2.8 INP1 Noninverting analog input 1J2.9 AGND Analog GroundJ2.10 NC Not ConnectedJ2.11 AGND Analog GroundJ2.12 NC Not ConnectedJ2.13 AGND Analog GroundJ2.14 NC Not ConnectedJ2.15 NC Not ConnectedJ2.16 NC Not ConnectedJ2.17 AGND Analog GroundJ2.18 NC Not ConnectedJ2.19 AGND Analog GroundJ2.20 NC Not Connected
In addition to the analog headers, the analog inputs and outputs may also be accessed through alternateconnectors, either screw terminals or audio jacks. The microphone input is also tied to J8 and the headsetoutput tied to J11. Table 2 summarizes the screw terminals available on theTLV320AIC12KEVMB/14KEVMB.
Table 2. Alternate Analog Connectors
DESIGNATOR PIN 1 PIN 2 PIN3
J6 OUTP1 OUTM1J7 OUTP2 OUTMV OUTP3J9 INP2 INM2J10 INM1 INP1
The TLV320AIC12KEVMB/14KEVMB is designed to easily interface with multiple control platforms.Samtec part numbers SSW-110-22-F-D-VS-K and TSM-110-01-T-DV-P provide a convenient 10-pin dualrow header/socket combination at J4 and J5. These headers/sockets provide access to the digital controland serial data pins of the device. Consult Samtec at www.samtec.com or call 1-800- SAMTEC-9 for avariety of mating connector options. Table 3 summarizes the digital interface pinout for theTLV320AIC12KEVMB/14KEVMB.
Table 3. Digital Interface Pinout
PIN NUMBER SIGNAL DESCRIPTION
J4.1 NC Not ConnectedJ4.2 NC Not ConnectedJ4.3 NC Not ConnectedJ4.4 DGND Digital GroundJ4.5 NC Not Connected
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Table 3. Digital Interface Pinout (continued)
PIN NUMBER SIGNAL DESCRIPTION
J4.6 NC Not ConnectedJ4.7 NC Not ConnectedJ4.8 AIC12K/14K RESET Reset signal input to AIC12K/14KEVMBJ4.9 NC Not ConnectedJ4.10 DGND Digital GroundJ4.11 NC Not ConnectedJ4.12 NC Not ConnectedJ4.13 NC Not ConnectedJ4.14 AIC12K/14K RESET Reset signal input to AIC12K/14KEVMBJ4.15 NC Not ConnectedJ4.16 SCL I
2
C Serial ClockJ4.17 NC Not ConnectedJ4.18 DGND Digital GroundJ4.19 NC Not ConnectedJ4.20 SDA I
2
C Serial Data Input/OutputJ5.1 NC Not ConnectedJ5.2 NC Not ConnectedJ5.3 SCLK Audio Serial Data Shift Clock (Input/Output)J5.4 DGND Digital GroundJ5.5 NC Not ConnectedJ5.6 NC Not ConnectedJ5A.7 FSD Audio Serial Data Bus Frame Sync DelayedJ5B.7 FS Audio Serial Data Bus Frame Sync (Input/Output)J5.8 NC Not ConnectedJ5.9 NC Not ConnectedJ5.10 DGND Digital GroundJ5.11 DIN Audio Serial Data Bus Data Input (Input)J5.12 NC Not ConnectedJ5.13 DOUT Audio Serial Data Bus Data Output (Output)J5.14 NC Not ConnectedJ5.15 NC Not ConnectedJ5.16 SCL I
2
C Serial ClockJ5.17 MCLK Master Clock InputJ5.18 DGND Digital GroundJ5.19 AIC12K/14K PWDN Power down signal input to AIC12K/14KEVMBJ5.20 SDA I
2
C Serial Data Input/Output
Note that J5 comprises the signals needed for a SMARTDM™ serial digital audio interface and I
2
C™signals. The reset and power down ( RESET and PWRDN) signals are routed to J4. I
2
C™ is actuallyrouted from the USB-MODEVM to both connectors; however, the codec and EEPROM are only connectedto J5.
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4 Power Supplies
4.1 Stand-Alone Operation
4.2 USB-MODEVM Interface Power
5 EVM Operation
Power Supplies www.ti.com
J3 provides connection to the common power bus for the TLV320AIC12KEVMB/14KEVMB. Power issupplied on the pins listed in Table 4 .
Table 4. Power Supply Pinout
SIGNAL PIN NUMBER SIGNAL
NC J3.1 J3.2 NC+5VA J3.3 J3.4 NCDGND J3.5 J3.6 AGNDDVDD (1.8V) J3.7 J3.8 NCIOVDD (3.3V) J3.9 J3.10 NC
The TLV320AIC12KEVMB-K/14KEVMB-K motherboard (the USB-MODEVM Interface board) suppliespower to J3 of the TLV320AIC12KEVMB/14KEVMB. Power for the motherboard is supplied either throughits USB connection or via terminal blocks on that board.
When used as a stand-alone EVM, power can be applied to J3 directly. The user must be sure toreference the supplies to the appropriate grounds on that connector.
CAUTION
Verify that all power supplies are within the safe operating limits shown on theTLV320AIC12K/14K data sheet before applying power to the EVM.
The USB-MODEVM Interface board can be powered from several different sources:•USB
•6VDC–10VDC 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 6V-10VDC, either through the J8 terminal block or the J9barrel jack, JMP6 should have a shunt installed on pins 2-3. If power is applied in any of these ways,onboard regulators generate the required supply voltages and no further power supplies are necessary.
If lab supplies are used to provide the individual voltages required by the USB-MODEVM Interface, JMP6should have no shunt installed. Voltages are then applied to J2 (+5VA), J3 (+5VD), J4 (+1.8VD), and J5(+3.3VD). The +1.8VD and +3.3VD can also be generated on the board by the onboard regulators fromthe +5VD supply; to enable this configuration, the switches on SW1 need to be set to enable theregulators by placing them in the ON position (lower position, looking at the board with text readingright-side up). If +1.8VD and +3.3VD are supplied externally, disable the onboard regulators by placingSW1 switches in the OFF position.
Each power supply voltage has an LED (D1-D7) that lights when the power supplies are active.
This section provides information on the analog input and output, digital control, and general operatingconditions for the TLV320AIC12KEVMB/14KEVMB.
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5.1 Analog Input
5.2 Analog Output
5.3 Digital Control
5.4 Default Jumper Locations
6 Kit Operation
6.1 TLV320AIC12KEVMB-K/14KEVMB-K Block Diagram
www.ti.com Kit Operation
The analog input sources can be applied directly to J2 (top or bottom side). The analog inputs may alsobe accessed through J8 and screw terminals J9 and J10.
The analog outputs from the TLV320AIC12K/14K are available on J1 (top or bottom). They also may beaccessed through J6 and J7 or J11. Note that the TLV320AIC14K only has one (differential) output whichcan be accessed from J1 or screw terminal J6.
The digital control signals can be applied directly to J4 and J5 (top or bottom side). The modularTLV320AIC12KEVMB/14KEVMB can also be connected directly to the USB-MODEVM Interface boardincluded as part of the TLV320AIC12EVMB-K/14EVMB-K. See the product folder for this EVM or theTLV320AIC12K/14K for a current list of compatible interface and/or accessory boards.
Table 5 lists the jumpers found on the EVM and their respective factory default conditions. Please notethat jumper W5 must be set to position 1-2 (IOVDD=3.3V) when using the USB-MODEVM for I
2
Ccommunication.
Table 5. List of Jumpers
DEFAULTJUMPER POSITION JUMPER DESCRIPTION
Sets the codec as master or slave. When set as master (2-3), the codec provides theW1 1-2 digital audio clock signals. When set as slave (1-2), the codec receives the digitalaudio clock signals.Used for correct polarity for FSD. In stand-alone master, FSD must be pulled highW2 1-2
(2-3), In stand alone slave, FSD must be pulled low (1-2).W3 Installed Provides a means of measuring IOVDD currentW4 Installed Provides a means of measuring DVDD currentIOVDD select. Can be set to 3.3V (1-2) or 1.8V (2-3) although 3.3V is required whenW5 1-2
using the USB-MODEVM for I
2
C communication.W6 Installed Selects on-board EEPROM as firmware source (required)When installed, allows the USB-MODEVM to hardware reset the device under userW7 Installed
controlW8 Installed Provides a means of measuring AVDD currentW9 Installed Provides a means of measuring DRVDD currentW10 Installed Coupling for OUTP1. Either directly or via capacitorW11 1-2 Source for INM1. Set to 1-2 when using external common mode for MICINW12 Installed Disconnects electret microphone (MK1)
This section provides information on using the TLV320AIC12KEVMB-K/14KEVMB-K, including set up,program installation, and program usage.
A block diagram of the TLV320AIC12KEVMB-K/14KEVMB-K is shown in Figure 1 . The evaluation kitconsists of two circuit boards connected together. The motherboard is designated as the USB-MODEVMInterface board, while the daughtercard is the TLV320AIC12KEVMB/14KEVMB described previously inthis manual.
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EVM Position 2
EVM Position 1
TLV320AIC12KEVMB/14KEVMB
Control Interface
TAS1020B
USB 8051
Microcontroller
USB
I C
2
SMARTDM
Audio Interface
TLV320AIC12K/14K
Kit Operation www.ti.com
Figure 1. TLV320AIC12KEVMB-K/14KEVMB-K Block Diagram
The USB-MODEVM Interface board is intended to be used in USB mode, where control of the installedEVM is accomplished using the onboard USB controller device. Provision is made, however, for driving allthe data buses (I
2
C, PCM/ SMARTDM™) externally. The source of these signals is controlled by SW2 onthe USB-MODEVM. Refer to Table 6 for details on the switch settings.
Additionally, SW3 on the USB-MODEVM (IOVDD SELECT) must be set up to 3.3V (SW3 position 1 on,SW3 positions 2-8 off).
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6.2 Installation
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Table 6. USB-MODEVM SW2 Settings
SW-2 SWITCH
NUMBER LABEL SWITCH DESCRIPTION
USB-MODEVM EEPROM I
2
C Address A01 A0 ON: A0 = 0OFF: A0 = 1USB-MODEVM EEPROM I
2
C Address A12 A1 ON: A1 = 0OFF: A1 = 1USB-MODEVM EEPROM I
2
C Address A23 A2 ON: A2 = 0OFF: A2 = 1Digital Audio Bus Source Selection4 USB I
2
S ON: Digital Audio Bus connects to TAS1020OFF: Digital Audio Bus connects to USB-MODEVM J14Digital Audio Bus MCLK Source Selection5 USB MCK ON: MCLK connects to TAS1020OFF: MCLK connects to USB-MODEVM J14SPI Bus Source Selection6 USB SPI ON: SPI Bus connects to TAS1020OFF: SPI Bus connects to USB-MODEVM J15RST Source Selection7 USB RST ON: EVM Reset Signal comes from TAS1020OFF: EVM Reset Signal comes from USB-MODEVM J15External MCLK Selection8 EXT MCK ON: MCLK Signal is provided from USB-MODEVM J10OFF: MCLK Signal comes from either selection of SW2-5
For use with the TLV320AIC12KEVMB/14KEVMB, SW-2 positions 1, 3, 4, 5 and 6 should be set to ON,while SW-2 positions 2, 7 and 8 should be set to OFF.
Ensure that the TLV320AIC12KEVMB/14KEVMB is installed on the USB-MODEVM Interface board,aligning J1, J2, J3, J4, J5 with the corresponding connectors on the USB-MODEVM.
Place the CD-ROM into your PC CD-ROM drive. Locate the Setup program on the disk, and start it. TheSetup program will install the TLV320AIC12K/14K Evaluation Tool software on your PC.
The NI-VISA Runtime installer is embedded to the TLV320AIC12K/14K Evaluation Tool installer. Thissoftware allows the program to communicate with the USB-MODEVM.
When the installation completes, click Finish on the TLV320AIC12K/14K Evaluation Tool installer window.You may be prompted to restart your computer.
When installation is complete, attach a USB cable from your PC to the USB-MODEVM Interface board. Asconfigured at the factory, the board will be powered from the USB interface, so the power indicator LEDsand the 'USB ACTIVE' LED on the USB-MODEVM should light.
The Found New Hardware Wizard will show up on the screen. Select the ' No, not this time' radio buttonand click ' Next >'. Select ' Install the software automatically (Recommended)' and click ' Next >'. If thedriver installs correctly the message: ' The wizard has finished installing the software for: AIC12K/14KEVM' should appear. Click ' Finish'. The AIC12K/14K EVM driver should now be installed. The deviceshould now appear on the Device Manager as ' NI-VISA USB Devices>AIC12K/14K EVM' and as ' Sound,video and game controllers>USB Audio Device'.
Once the device drivers are installed launch the TLV320AIC12K/14K Evaluation Tool software on yourPC, located on the computer's desktop or in 'Start>Programs>Texas Instruments'.
The software should automatically find the TLV320AIC12K/14K, and a screen similar to the one inFigure 2 should appear.
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6.3 USB-MODEVM Interface Board
6.4 Program Description
Kit Operation www.ti.com
Figure 2. Default Software Screen
The simple diagram shown in Figure 1 shows only the basic features of the USB-MODEVM Interfaceboard. The board is built around a TAS1020B streaming audio USB controller with an 8051-based core.The board features two positions for modular EVMs, or one double-wide serial modular EVM may beinstalled.
Since the TLV320AIC12KEVMB/14KEVMB is a double-wide modular EVM, it is installed with connectionsto both EVM positions, which connects the TLV320AIC12K/14K digital control interface to the I
2
C portrealized using the TAS1020B, as well as the TAS1020B digital audio interface.
In the factory configuration, the board is ready to use with the TLV320AIC12KEVMB/14KEVMB. To viewall the functions and configuration options available on the USB-MODEVM board, see the USB-MODEVMInterface Board schematic in Appendix B .
After the TLV320AIC12KEVMBK/14KEVMB-K software installation (described in Section 6.2 ) is complete,evaluation and development with the TLV320AIC12K/14K can begin.
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