Texas Instruments TLV320AIC31EVM User Manual
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Texas Instruments TLV320AIC31EVM User Manual

Texas Instruments TLV320AIC31EVM User Manual

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TLV320AIC31EVM and TLV320AIC31EVM-PDK User's
This user's guide describes the characteristics, operation, and use of the
TLV320AIC31EVM, both by itself and as part of the TLV320AIC31EVM-PDK. This
evaluation module (EVM) is a complete stereo audio codec with several inputs and
outputs, extensive audio routing, mixing and effects capabilities. A complete circuit
description, schematic diagram and bill of materials are included.
The following related documents are available through the Texas Instruments web site
at www.ti.com.
1
EVM Overview
2
3
4
5
6
7
TLV320AIC31EVM Schematic
Appendix B
USB-MODEVM Schematic
1
2
3
Audio Generator Screen
4
Audio Analyzer Screen
5
6
7
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8
9
2
2
I
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.
All trademarks are the property of their respective owners.
SBAU115 - November 2005
EVM-Compatible Device Data Sheets
Device
TLV320AIC31
TAS1020B
REG1117-3.3
TPS767D318
SN74LVC125A
SN74LVC1G125
SN74LVC1G07
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Literature Number
SLAS497
SLES025
SBVS001
SLVS209
SCAS290
SCES223
SCES296
Contents
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List of Figures
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TLV320AIC31EVM and TLV320AIC31EVM-PDK User's Guide
User's Guide
SBAU115 - November 2005
Guide
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19
20
2
3
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8
1

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Summary of Contents for Texas Instruments TLV320AIC31EVM

  • Page 1: Table Of Contents

    Guide This user's guide describes the characteristics, operation, and use of the TLV320AIC31EVM, both by itself and as part of the TLV320AIC31EVM-PDK. This evaluation module (EVM) is a complete stereo audio codec with several inputs and outputs, extensive audio routing, mixing and effects capabilities. A complete circuit description, schematic diagram and bill of materials are included.
  • Page 2 Windows™ operating systems (Win2000 or XP). Introduction The TLV320AIC31EVM is in Texas Instruments' modular EVM form factor, which allows direct evaluation of the device performance and operating characteristics, and eases software development and system prototyping. This EVM is compatible with the 5-6K Interface Evaluation Module (SLAU104) and the HPA-MCUINTERFACE (SLAU106) from Texas Instruments and additional third-party boards which support TI's Modular EVM format.

  • Page 3: Analog Interface

    Analog Interface Analog Interface For maximum flexibility, the TLV320AIC31EVM is designed for easy interfacing to multiple analog sources. Samtec part numbers SSW-110-22-F-D-VS-K and TSM-110-01-T-DV-P provide a convenient 10-pin dual row header/socket combination at J1 and J2. These headers/sockets provide access to the analog input and output pins of the device.

  • Page 4: Digital Interface

    IN1RM Digital Interface The TLV320AIC31EVM 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 dual row header/socket combination at J4 and J5. These headers/sockets provide access to the digital control and serial data pins of the device.

  • Page 5: Power Supplies

    C is actually routed to both connectors; however, the device is connected only to J4. Power Supplies J3 provides connection to the common power bus for the TLV320AIC31EVM. Power is supplied on the pins listed in Table Table 4. Power Supply Pin Out...

  • Page 6: Evm Operation

    The digital control signals can be applied directly to J4 and J5 (top or bottom side). The modular TLV320AIC31EVM can also be connected directly to a DSP interface board, such as the 5-6KINTERFACE or HPA-MCUINTERFACE, or to the USB-MODEVM Interface board if purchased as part of the TLV320AIC31EVM-PDK.

  • Page 7: Default Jumper Locations

    When installed, shorts across the output capacitor on HPRCOM; remove this jumper if using AC-coupled output drive Kit Operation The following section provides information on using the TLV320AIC31EVM-PDK, including set up, program installation, and program usage. TLV320AIC31EVM-PDK Block Diagram A block diagram of the TLV320AIC31EVM-PDK is shown in Figure 1.
  • Page 8 I S, AC97 Audio Interface Figure 1. TLV320AIC31EVM-PDK Block Diagram The USB-MODEVM Interface board is intended to be used in USB mode, where control of 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...

  • Page 9: Installation

    ON: MCLK Signal is provided from USB-MODEVM J10 OFF: MCLK Signal comes from either selection of SW2-5 For use with the TLV320AIC31EVM, SW-2 positions 1 through 7 should be set to ON, while SW-2.8 should be set to OFF. Installation Ensure that the TLV320AIC31EVM is installed on the USB-MODEVM Interface board, aligning J1, J2, J3, J4, J5 with the corresponding connectors on the USB-MODEVM.

  • Page 10: Default Software Screen

    C port realized using the TAS1020B, as well as the TAS1020B digital audio interface. As configured from the factory, the board is ready to use with the TLV320AIC31EVM. To view all the functions and configuration options available on the USB-MODEVM board, see the USB-MODEVM...

  • Page 11: Program Description

    Kit Operation Program Description After the TLV320AIC31EVM-PDK software installation (described in Section 6.2) is complete, evaluation and development with the TLV320AIC31 can begin. Indicators and Main Screen Controls Figure 2 illustrates the indicators and controls near the top of the software screen display, and a large tabbed interface below.
  • Page 12 Kit Operation The output waveforms for both left and right channels are displayed in the graph at the bottom of the screen in Figure Figure 3. Audio Generator Screen TLV320AIC31EVM and TLV320AIC31EVM-PDK User's Guide SBAU115 – November 2005...
  • Page 13 The analyzer screen features a graph of the input signals, both left and right channels, in a time domain display at the top of the screen, and in the frequency domain (FFT) at the bottom of the screen. SBAU115 – November 2005 TLV320AIC31EVM and TLV320AIC31EVM-PDK User's Guide...

  • Page 14: Audio Input Tab

    ACTIVE. The level of the input channel routed to that particular ADC channel can then be adjusted using the Level knob below the MUTE/ACTIVE button. See Figure Figure 5. Audio Input Tab TLV320AIC31EVM and TLV320AIC31EVM-PDK User's Guide SBAU115 – November 2005...

  • Page 15: Audio Interface Tab

    Length control, and the bit clock rate can also be selected using the Bit Clock rate control. The Data Word Offset, used in TDM mode (see the product datasheet), can also be selected on this tab. SBAU115 – November 2005 TLV320AIC31EVM and TLV320AIC31EVM-PDK User's Guide...
  • Page 16 ±FS/4 for the ADC or DAC sample rates (see the TLV320AIC31 datasheet). The channels can be soft muted when doing the re-sync if the Soft Mute button is enabled. TLV320AIC31EVM and TLV320AIC31EVM-PDK User's Guide SBAU115 – November 2005...

  • Page 17: Clocks Tab

    The codec clock source is chosen by by the CODEC_CLK Source control. When this control is set to CLKDIV_OUT, the PLL is not used; when set to PLLDIV_OUT, the PLL is used to generate the clocks. SBAU115 – November 2005 TLV320AIC31EVM and TLV320AIC31EVM-PDK User's Guide...
  • Page 18 This allows for different possible solutions to be selected and the error evaluated before loading into the device. When a suitable combination of P,K, and R have been chosen, pressing the Load Settings into Device? button will download these values into the appropriate registers on the TLV320AIC31. TLV320AIC31EVM and TLV320AIC31EVM-PDK User's Guide SBAU115 – November 2005...

  • Page 19: Agc Tab

    Noise gate functions, such as Hysteresis, Clip stepping, Threshold, and Signal and Noise Detect debouncing are set using the corresponding controls in the Noise Gate groupbox for each channel. SBAU115 – November 2005 TLV320AIC31EVM and TLV320AIC31EVM-PDK User's Guide...

  • Page 20: Filters Tab

    Biquad 1 and Biquad 2. Note that the plot shows only the responses of the effect filters, not the combined response of those filter along with the de-emphasis and ADC high-pass filters. TLV320AIC31EVM and TLV320AIC31EVM-PDK User's Guide SBAU115 – November 2005...

  • Page 21: Adc Highpass Filter Settings

    As shown in Figure 12, in Bass mode a shelf filter applies a gain to frequencies below the corner frequency; in Treble mode the gain is applied to frequencies above the corner frequency. SBAU115 – November 2005 TLV320AIC31EVM and TLV320AIC31EVM-PDK User's Guide...

  • Page 22: Shelf Filters

    EQ, or parametric, filters can be designed on this tab. Enter a gain, bandwidth, and a center frequency (Fc). Either bandpass (positive gain) or band-reject (negative gain) filters can be created. Figure 13. EQ Filters TLV320AIC31EVM and TLV320AIC31EVM-PDK User's Guide SBAU115 – November 2005...

  • Page 23: Analog Simulation Filters

    Many applications are designed to provide preset filters common for certain types of program material. This tab allows selection of one of four preset filter responses - Rock, Jazz, Classical, or Pop. Figure 15. Preset Filters SBAU115 – November 2005 TLV320AIC31EVM and TLV320AIC31EVM-PDK User's Guide...

  • Page 24: Emphasis Filters

    Effect Filter Response graph; however, note that this response is not included in graphs of other effect responses when on the other filter design tabs. Figure 16. De-emphasis Filters TLV320AIC31EVM and TLV320AIC31EVM-PDK User's Guide SBAU115 – November 2005...

  • Page 25: User Filters

    The User Filters tab may be used to load the coefficients. Figure Figure 18. 3D Effect Settings To enable the 3D effect, check the 3D Effect On box. The Depth knob controls the value of the 3D Attenuation Coefficient. SBAU115 – November 2005 TLV320AIC31EVM and TLV320AIC31EVM-PDK User's Guide...

  • Page 26: Dac/Line Outputs Tab

    Data going to the DACs is selected using the drop-down boxes under the Left and Right Datapath. Each DAC channel can be selected to be off, use left channel data, use right channel data, or use a mono mix of the left and right data. TLV320AIC31EVM and TLV320AIC31EVM-PDK User's Guide SBAU115 – November 2005...

  • Page 27: Output Stage Configuration Tab

    The Configuration may be set as either Fully-Differential or Pseudo-Differential. The output coupling can be chosen as either capless or AC-coupled. This setting should correspond to the setting of the hardware switch (SW1) on the TLV320AIC31EVM. SBAU115 – November 2005...
  • Page 28 Protection can use a current-limit mode, where the drivers will limit current output if a short-circuit condition is detected, or in a mode where the drivers power down when such a condition exists. TLV320AIC31EVM and TLV320AIC31EVM-PDK User's Guide SBAU115 – November 2005...

  • Page 29: High Power Outputs Tab

    HPL or HPR output that the COM output is tracking. At the right side of the output strip is a master volume knob for that output, which allows muting the output or applying gain up to 9dB. SBAU115 – November 2005 TLV320AIC31EVM and TLV320AIC31EVM-PDK User's Guide...

  • Page 30: Command Line Interface Tab

    Read Data array control. When executing several commands, the Read Data control shows only the results of the last command. If you to see the results after every executed command, use the logging function described below. TLV320AIC31EVM and TLV320AIC31EVM-PDK User's Guide SBAU115 – November 2005...

  • Page 31: File Menu

    Exit, which terminates the TLV320AIC31EVM software. Figure 23. File Menu Under the Help menu is an About... menu item which displays information about the TLV320AIC31EVM software. The actual USB protocol used as well as instructions on writing scripts are detailed in the following subsections.

  • Page 32: Data Packet Configuration

    Now let's do a 16-bit register address, as found on parts like the TSC2101. Assume the register address (command word) is 0x10E0: [0] 0x14 --> Note: the I C address now serves as MSB of reg addr. [1] 0x10 [2] 0x02 [3] 0xE0 [4] 0xAA [5] 0x55 TLV320AIC31EVM and TLV320AIC31EVM-PDK User's Guide SBAU115 – November 2005...
  • Page 33 Examples above used writes. Reading is similar: Read two bytes from device starting at register 5 of an I C device with address A0: [0] 0x01 [1] 0xA0 [2] 0x02 [3] 0x05 SBAU115 – November 2005 TLV320AIC31EVM and TLV320AIC31EVM-PDK User's Guide...

  • Page 34: Gpio Pin Assignments

    Therefore, the program is not very forgiving about mistakes made in the source script file, but the formatting of the file is simple. Consequently, mistakes should be rare. TLV320AIC31EVM and TLV320AIC31EVM-PDK User's Guide SBAU115 – November 2005...
  • Page 35 0x03. Note that the slave device value does not change. It is not necessary to set the R/W bit for I C devices in the script; the read or write commands will do that for you. SBAU115 – November 2005 TLV320AIC31EVM and TLV320AIC31EVM-PDK User's Guide...

  • Page 36: Evm Bill Of Materials

    OK in the dialog box that will be displayed due to the break. EVM Bill of Materials Table 10 Table 11 contain a complete bill of materials for the modular TLV320AIC31EVM and the USB-MODEVM Interface Board (included only in the TLV320AIC31EVM-PDK). TLV320AIC31EVM and TLV320AIC31EVM-PDK User's Guide SBAU115 – November 2005...

  • Page 37: Tlv320Aic31Evm Bill Of Materials

    EVM Bill of Materials Table 10. TLV320AIC31EVM Bill of Materials REFERENCE DESIGNATOR DESCRIPTION MANUFACTURER MFGPART NUMBER R7, R8 0Ω 1/4W 5% chip resistor Panasonic ERJ-8GEY0R00V R5, R6 2.2KΩ 1/4W 5% chip resistor Panasonic ERJ-8GEYJ222V R1, R2, R3 2.7KΩ 1/10W 5% chip resistor...

  • Page 38: Usb-Modevm Bill Of Materials

    U5, U6, U7 Single IC buffer driver with Texas Instruments SN74LVC1G07DBVR open drain o/p Single tri-state buffer Texas Instruments SN74LVC1G125DBVR 64K 2-Wire serial EEPROM Microchip 24LC64I/SN USB-MODEVM PCB Texas Instruments 6463995 TLV320AIC31EVM and TLV320AIC31EVM-PDK User's Guide SBAU115 – November 2005...
  • Page 39 0.1" spacing JMP7 3-position dual row jumper, Samtec TSW-103-07-L-D 0.1" spacing SMT, half-pitch 2-position C&K Division, ITT TDA02H0SK1 switch SMT, half-pitch 8-position C&K Division, ITT TDA08H0SK1 switch Jumper plug Samtec SNT-100-BK-T SBAU115 – November 2005 TLV320AIC31EVM and TLV320AIC31EVM-PDK User's Guide...

  • Page 40: Appendix A Tlv320Aic31Evm Schematic

    Appendix A Appendix A TLV320AIC31EVM Schematic The schematic diagram is provided as a reference. TLV320AIC31EVM Schematic SBAU115 – November 2005...
  • Page 41 MD9745APZ-F DATA ACQUISITION PRODUCTS MICROPHONE HIGH PERFORMANCE ANALOG DIVISION SEMICONDUCTOR GROUP 6730 SOUTH TUCSON BLVD., TUCSON, AZ 85706 USA TITLE ENGINEER RICK DOWNS TLV320AIC31EVM DRAWN BY BOB BENJAMIN DOCUMENT CONTROL NO. 6477578 SIZE DATE 17-Oct-2005 SHEET FILE...
  • Page 42 J3B (BOTTOM) = SAM_SSW-105-22-F-D-VS-K JMP2 DATA ACQUISITION PRODUCTS HIGH-PERFORMANCE ANALOG DIVISION SEMICONDUCTOR GROUP 6730 SOUTH TUCSON BLVD., TUCSON, AZ 85706 USA TITLE ENGINEER RICK DOWNS TLV320AIC31EVM INTERFACE DRAWN BY BOB BENJAMIN DOCUMENT CONTROL NO. 6477578 SIZE DATE 17-Oct-2005 SHEET FILE...

  • Page 43: Appendix B Usb-Modevm Schematic

    www.ti.com Appendix B Appendix B USB-MODEVM Schematic The schematic diagram is provided as a reference. SBAU115 – November 2005 USB-MODEVM Schematic...
  • Page 44 REVISION HISTORY ENGINEERING CHANGE NUMBER APPROVED IOVDD IOVDD IOVDD +3.3VD +3.3VD EXT MCLK ZXMN6A07F 2.7K 2.7K SN74LVC1G125DBV USB MCK MCLK USB I2S I2SDIN USB I2S ZXMN6A07F USB MCK BCLK EXTERNAL I2C USB SPI SN74LVC125APW LRCLK USB RST +3.3VD +3.3VD EXT MCK IOVDD I2SDOUT SW DIP-8...
  • Page 45 REVISION HISTORY ENGINEERING CHANGE NUMBER APPROVED JMP5 A0(-) A0(+) CNTL GPIO0 A1(-) A1(+) CLKX DGND A2(-) A2(+) CLKR GPIO1 A3(-) A3(+) GPIO2 AGND DGND AGND GPIO3 AGND GPIO4 VCOM AGND REF- TOUT DGND +5VA J13A (TOP) = SAM_TSM-105-01-L-DV-P AGND REF+ GPIO5 J13B (BOTTOM) = SAM_SSW-105-22-F-D-VS-K DAUGHTER-ANALOG...

  • Page 46: Fcc Warnings

    EVM TERMS AND CONDITIONS Texas Instruments (TI) provides the enclosed Evaluation Module and related material (EVM) to you, the user, (you or user) SUBJECT TO the terms and conditions set forth below. By accepting and using the EVM, you are indicating that you have read, understand and agree to be bound by these terms and conditions.
  • Page 47 TI product or service and is an unfair and deceptive business practice. TI is not responsible or liable for any such statements. Following are URLs where you can obtain information on other Texas Instruments products and application solutions:...

  • Page 48: Texas Instruments

    Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Texas Instruments TLV320AIC31EVM-PDK TLV320AIC31EVM...

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