Texas Instruments TLV320AIC12KEVMB-K User Manual
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Texas Instruments TLV320AIC12KEVMB-K User Manual

Texas Instruments TLV320AIC12KEVMB-K User Manual

Evaluation module
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TLV320AIC12KEVMB-K and TLV320AIC14KEVMB-K User's
This user's guide describes the characteristics, operation, and use of evaluation modules
TLV320AIC12KEVMB
(TLV320AIC12KEVMB-K and TLV320AIC14KEVMB-K). A complete 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.
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EVM Bill of Materials
Appendix A
TLV320AIC12KEVMB/14KEVMB Schematic
Appendix B
USB-MODEVM Schematic
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SMARTDM is a trademark of Texas Instruments.
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I
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.
SLAU229B - October 2007 - Revised August 2008
Submit Documentation Feedback
and
TLV320AIC14KEVMB,
EVM-Compatible Device Data Sheets
Device
TLV320AIC12K/14K
TAS1020B
REG1117-3.3
TPS767D318
SN74LVC125A
SN74LVC1G125
SN74LVC1G07
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SLAU229B - October 2007 - Revised August 2008
both
as
Literature Number
SLWS115E
SLES025
SBVS001
SLVS209
SCAS290
SCES223
SCES296
Contents
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List of Figures
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TLV320AIC12KEVMB-K and TLV320AIC14KEVMB-K User's Guide
User's Guide
Guide
stand-alone
and
as
kits
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Summary of Contents for Texas Instruments TLV320AIC12KEVMB-K

  • Page 1: Table Of Contents

    (TLV320AIC12KEVMB-K and TLV320AIC14KEVMB-K). A complete 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 TLV320AIC12K/14K...
  • Page 2 www.ti.com .................... Command Line Interface Tab ........................File Menu ....................... Options Menu .......................... Help List of Tables ..................... Analog Interface Pinout ....................Alternate Analog Connectors ...................... Digital Interface Pinout ......................Power Supply Pinout ....................... List of Jumpers ..................... USB-MODEVM SW2 Settings ..............

  • Page 3: Evm Overview

    EVM Overview www.ti.com EVM Overview Features 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.

  • Page 4: Digital Interface

    Digital Interface www.ti.com Table 1. Analog Interface Pinout (continued) PIN NUMBER SIGNAL DESCRIPTION J2.2 INP2 Noninverting analog input 2 J2.3 Not Connected J2.4 Not Connected J2.5 Not Connected J2.6 Not Connected J2.7 INM1 Inverting analog input 1 J2.8 INP1 Noninverting analog input 1 J2.9 AGND Analog Ground...
  • Page 5 Digital Interface www.ti.com Table 3. Digital Interface Pinout (continued) PIN NUMBER SIGNAL DESCRIPTION J4.6 Not Connected J4.7 Not Connected J4.8 AIC12K/14K RESET Reset signal input to AIC12K/14KEVMB J4.9 Not Connected J4.10 DGND Digital Ground J4.11 Not Connected J4.12 Not Connected J4.13 Not Connected J4.14...

  • Page 6: Power Supplies

    Power Supplies www.ti.com Power Supplies J3 provides connection to the common power bus for the TLV320AIC12KEVMB/14KEVMB. Power is supplied on the pins listed in Table Table 4. Power Supply Pinout SIGNAL PIN NUMBER SIGNAL NC J3.1 J3.2 +5VA J3.3 J3.4 DGND J3.5 J3.6 AGND...

  • Page 7: Kit Operation

    Kit Operation www.ti.com Analog Input The analog input sources can be applied directly to J2 (top or bottom side). The analog inputs may also be accessed through J8 and screw terminals J9 and J10. Analog Output The analog outputs from the TLV320AIC12K/14K are available on J1 (top or bottom). They also may be accessed through J6 and J7 or J11.
  • Page 8 Kit Operation www.ti.com TLV320AIC12KEVMB/14KEVMB TLV320AIC12K/14K EVM Position 1 Control Interface TAS1020B USB 8051 EVM Position 2 Microcontroller SMARTDM Audio Interface 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 installed EVM is accomplished using the onboard USB controller device.

  • Page 9: Usb-Modevm Sw2 Settings

    Audio Device'. Once the device drivers are installed launch the TLV320AIC12K/14K Evaluation Tool software on your PC, 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 in Figure 2 should appear.

  • Page 10: Default Software Screen

    Kit Operation www.ti.com Figure 2. Default Software Screen USB-MODEVM Interface Board The simple diagram shown in Figure 1 shows only the basic features of the USB-MODEVM Interface board. 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 be installed.

  • Page 11: Information Tab

    Kit Operation www.ti.com Indicators and Main Screen Controls Figure 2 illustrates the indicators and the main screen controls near the top of the software screen display, and a large tabbed interface below. This section discusses the controls above this tabbed section. At the top left of the screen is an Interface indicator.
  • Page 12 Kit Operation www.ti.com Figure 3. Information Tab Additionally, the operating system's audio device must be configured as AIC12K/14K EVM (see Figure The External Audio Interface Configuration only allows I C communication between the host computer and the TLV320AIC12K/14K. In this configuration, the TLV320AIC12K/14K can transmit and receive audio data to/from an external PCM device or DSP.

  • Page 13: Sounds And Audio Devices Properties

    Kit Operation www.ti.com Figure 4. Sounds and Audio Devices Properties Preset Configurations Tab The Preset Configurations tab (Figure 5) provides several presets for both the USB-MODEVM Audio Interface Configuration and the External Audio Interface Configuration. Also, there is a TLV320AIC12K/14K Defaults preset which programs the codec's default register settings. When a radio button is selected, a detailed description of the preset will appear on the Preset Configuration Description box.

  • Page 14: Device Controls Tab

    Kit Operation www.ti.com Figure 5. Preset Configurations Device Controls Tab The Device Controls Tab (Figure 6) contains six enumerated Control Registers sub tabs with controls for all six registers of the TLV320AIC12K/14K, a register table at the bottom of the tab, several controls and an indicator at the right of the tab.

  • Page 15: Control Register 1 Tab

    Kit Operation www.ti.com Figure 6. Device Controls Tab 6.8.1 Control Register 1 Tab The Transfer Mode control lets the user select between continuous data transfer mode or programming mode. In the continuous data transfer mode, only audio data is sent and received through the serial audio bus.

  • Page 16: Control Register 2 Tab

    Kit Operation www.ti.com Figure 7. Control Register 1 Tab 6.8.2 Control Register 2 Tab The Turbo Mode control (Figure 8) sets the SCLK frequency to 16 FS (number of devices) mode or MCLK P, where number of devices is the number of codecs in cascade (default=1) and the mode is 1 for continuous data transfer mode and 2 for programming mode.

  • Page 17: Control Register 3 Tab

    Kit Operation www.ti.com Figure 8. Control Register 2 Tab 6.8.3 Control Register 3 Tab The Control Register 3 Tab (Figure 9) allows the user to set the DAC Oversampling Rate (OSR), set the Asynchronous Sampling Rate Factor and power down the ADC or DAC with the Power Down Controls.

  • Page 18: Control Register 5 Tab

    Kit Operation www.ti.com are merely for illustration; what is actually written to registers 4A and 4B are the values of P, M and N only. The USB-MODEVM Audio Interface Configuration is set up for an MCLK=11.2896 MHz, so P, M and N must satisfy the FS equation and the SCLK equation in Turbo Mode for that configuration.
  • Page 19 Kit Operation www.ti.com Please refer to Appendix A for details. Note that the ring contact in J8 is not connected. c. MICIN with external common mode (pseudo-differential) - In this mode, the single ended input is connected through ac-coupling to MICIN and the bias voltage used to generate the signal is also ac coupled to INM1.

  • Page 20: Command Line Interface Tab

    Kit Operation www.ti.com Figure 13. Command Line Interface Tab A script is loaded into the command buffer, either by operating the controls on the other tabs or by loading a script file or preset. When executed, either by loading commands from other tabs, loading a preset or pushing the Execute Command Buffer button, an array containing executed commands will be displayed on the Command History tab.

  • Page 21: File Menu

    Kit Operation www.ti.com Figure 14. File Menu The Options menu (Figure 15) provides two settings suitable for command line interface users and for troubleshooting. These settings allows the user to evaluate the device in its most basic form. The first option, Hardware Reset on Startup, enables (checked) and disables (unchecked) the hardware reset commands every time the GUI starts.

  • Page 22: Help

    Kit Operation www.ti.com Figure 16. Help The actual USB protocol used as well as instructions on writing scripts are detailed in the following subsections. While it is not necessary to understand or use either the protocol or the scripts directly, understanding them may be helpful to some users.

  • Page 23: Data Packet Configuration

    Kit Operation www.ti.com The data packet consists of the following bytes, shown in Table Table 8. Data Packet Configuration BYTE NUMBER TYPE DESCRIPTION Specifies serial interface and operation. The two values are logically OR'd. Operation: READ 0x00 WRITE 0x10 Interface: Interface GPIO 0x08...
  • Page 24 Kit Operation www.ti.com If the command is sent with no problem, the returning byte [0] should be the same as the sent one logically or'd with 0x20 - in the second example above (fast mode), the returning packet should be: 0x32 0x80 0x02...

  • Page 25: Gpio Pin Assignments

    Kit Operation www.ti.com 6.9.1.1 GPIO Capability The USB-MODEVM has seven GPIO lines. The user can access them by specifying the interface to be 0x08, and then using the standard format for packets—but addresses are unnecessary. The GPIO lines are mapped into one byte (see Table Table 9.
  • Page 26 Kit Operation www.ti.com 6.9.2 Writing Scripts A script is simply a text file that contains data to send to the serial control buses. The scripting language is quite simple, as is the parser for the language. Therefore, the program is not very forgiving about mistakes made in the source script file, but the formatting of the file is simple.
  • Page 27 Kit Operation www.ti.com For example, to write the values 0x45 0xA0 to an I C device with a slave address of 0x80, starting at a register address of 0x01, one would write: #example script i i2cfast w 80 01 45 A0 r 80 01 02 This script begins with a comment, specifies that a fast I C bus will be used, then writes 0x45 0xA0 to the...
  • Page 28 Kit Operation www.ti.com Here is an example of a script: # TLV320AIC12K/14K # This configuration allows playing audio to the DAC from any media player on # a computer and recording from the ADC on audio recording software. Pin # MICIN is configured as the input. The input can be heard via OUTP1/M1 and # OUTP2/P3 due to the digital sidetone.

  • Page 29: Tlv320Aic12Kevmb/14Kevmb Bill Of Materials

    20-pin SMT socket Samtec SSW-110-22-F-D-VS-K 10-pin SMT plug Samtec TSM-105-01-L-DV-P 10-pin SMT socket Samtec SSW-105-22-F-D-VS-K TLV320AIC12KEVMB/14KEVM Texas Instruments 6488702 B PWB W3, W4, W6-W10, W12 2-position jumper, 0.1" spacing Samtec TSW-102-07-L-S W1, W2, W5, W11 3-position jumper, 0.1" spacing Samtec...

  • Page 30: Usb-Modevm Bill Of Materials

    Red Light Emitting Diode Lumex SML-LX0603IW-TR Q1, Q2 N-Channel MOSFET Zetex ZXMN6A07F 6MHz Crystal SMD Epson MA-505 6.000M-C0 USB streaming controller Texas Instruments TAS1020BPFB 5V LDO regulator Texas Instruments REG1117-5 3.3V/1.8V dual output Texas Instruments TPS767D318PWP LDO regulator U3, U4 Quad, 3-state buffers...
  • Page 31 EVM Bill of Materials www.ti.com Table 11. USB-MODEVM Bill of Materials (continued) Designators Description Manufacturer Mfg. Part Number TP1, TP2, TP3, TP4, TP5, Miniature test point terminal Keystone Electronics 5000 TP6, TP9, TP10, TP11 TP7, TP8 Multipurpose test point Keystone Electronics 5011 terminal USB type B slave connector...
  • Page 32 Appendix A www.ti.com Appendix A TLV320AIC12KEVMB/14KEVMB Schematic The schematic diagram is provided as a reference. TLV320AIC12KEVMB/14KEVMB Schematic SLAU229B – October 2007 – Revised August 2008 Submit Documentation Feedback...
  • Page 33 REVISION HISTORY ENGINEERING CHANGE NUMBER APPROVED /J1B /J4B OUTM1 A0(-) A0(+) OUTP1 CNTL GPIO0 A1(-) A1(+) OUTP2 CLKX DGND OUTMV A2(-) A2(+) OUTMV CLKR GPIO1 A3(-) A3(+) OUTP3 GPIO2 AGND DGND AGND GPIO3 AGND GPIO4 RESET VCOM AGND REF- TOUT DGND AGND REF+...
  • Page 34 REVISION HISTORY ENGINEERING CHANGE NUMBER APPROVED OUTP1 OUTP1 IOVDD OUTP1 OUTM1 TP17 0.1uF OUTM1 PWDN PWDN PWDN OUTM1 IOVDD OUT1 OUTP2 +3.3VA OUTMV TP28 DRVSS OUTP3 TP11 AGND 10uF OUT2 TP18 TP12 DGND TP19 0.1uF DOUT DOUT DOUT OUTP2 C22 47uF OUTP2 OUTP2 TP20...
  • Page 35 Appendix B www.ti.com Appendix B USB-MODEVM Schematic The schematic diagram is provided as a reference. SLAU229B – October 2007 – Revised August 2008 USB-MODEVM Schematic Submit Documentation Feedback...
  • Page 36 REVISION HISTORY ENGINEERING CHANGE NUMBER APPROVED USB Interface Daughtercard Interface USB Interface Daughtercard Interface MCLK MCLK BCLK BCLK LRCLK LRCLK I2SDIN I2SDIN I2SDOUT I2SDOUT MISO MISO MOSI MOSI SCLK SCLK RESET RESET PWR_DWN PWR_DWN P3.3 P3.3 P3.4 P3.4 P3.5 P3.5 P1.0 P1.0 P1.1...
  • Page 37 REVISION HISTORY ENGINEERING CHANGE NUMBER APPROVED IOVDD C32 +3.3VD +3.3VD 0.1uF 0.1uF 0.1uF +3.3VD IOVDD +3.3VD C34 IOVDD +3.3VD IOVDD +3.3VD +3.3VD SN74LVC1G126DBV VCCA VCCB USB MCK DIR1 0.1uF 0.1uF 0.1uF EXT MCK EXT MCLK DIR2 0.1uF 200k 2.7K 2.7K VCCB VCCA USB I2S...
  • Page 38 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 IOVDD VCOM AGND REF- TOUT DGND +3.3VD AGND REF+ GPIO5 J13A (TOP) = SAM_TSM-105-01-L-DV-P +5VA DAUGHTER-ANALOG J13B (BOTTOM) = SAM_SSW-105-22-F-D-VS-...
  • Page 39 EVALUATION BOARD/KIT IMPORTANT NOTICE Texas Instruments (TI) provides the enclosed product(s) under the following conditions: This evaluation board/kit is intended for use for ENGINEERING DEVELOPMENT, DEMONSTRATION, OR EVALUATION PURPOSES ONLY and is not considered by TI to be a finished end-product fit for general consumer use. Persons handling the product(s) must have electronics training and observe good engineering practice standards.

  • Page 40: Important Notice

    IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete.

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