Texas Instruments TLV320AIC12KEVMB-K appendix Analog Input, Analog Output, Digital Control

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Kit Operation

5.1Analog 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.

5.2Analog 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. Note that the TLV320AIC14K only has one (differential) output which can be accessed from J1 or screw terminal J6.

5.3Digital Control

The digital control signals can be applied directly to J4 and J5 (top or bottom side). The modular TLV320AIC12KEVMB/14KEVMB can also be connected directly to the USB-MODEVM Interface board included as part of the TLV320AIC12EVMB-K/14EVMB-K. See the product folder for this EVM or the TLV320AIC12K/14K for a current list of compatible interface and/or accessory boards.

5.4Default Jumper Locations

Table 5 lists the jumpers found on the EVM and their respective factory default conditions. Please note that jumper W5 must be set to position 1-2 (IOVDD=3.3V) when using the USB-MODEVM for I2C communication.

 

 

Table 5. List of Jumpers

 

DEFAULT

 

JUMPER

POSITION

JUMPER DESCRIPTION

 

 

Sets the codec as master or slave. When set as master (2-3), the codec provides the

W1

1-2

digital audio clock signals. When set as slave (1-2), the codec receives the digital

 

 

audio clock signals.

W2

1-2

W3

Installed

W4

Installed

W5

1-2

Used for correct polarity for FSD. In stand-alone master, FSD must be pulled high (2-3), In stand alone slave, FSD must be pulled low (1-2).

Provides a means of measuring IOVDD current

Provides a means of measuring DVDD current

IOVDD select. Can be set to 3.3V (1-2) or 1.8V (2-3) although 3.3V is required when using the USB-MODEVM for I2C communication.

W6

Installed

Selects on-board EEPROM as firmware source (required)

W7

Installed

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

control

 

 

W8

Installed

Provides a means of measuring AVDD current

W9

Installed

Provides a means of measuring DRVDD current

W10

Installed

Coupling for OUTP1. Either directly or via capacitor

W11

1-2

Source for INM1. Set to 1-2 when using external common mode for MICIN

W12

Installed

Disconnects electret microphone (MK1)

6Kit Operation

This section provides information on using the TLV320AIC12KEVMB-K/14KEVMB-K, including set up, program installation, and program usage.

6.1TLV320AIC12KEVMB-K/14KEVMB-K Block Diagram

A block diagram of the TLV320AIC12KEVMB-K/14KEVMB-K is shown in Figure 1. The evaluation kit consists of two circuit boards connected together. The motherboard is designated as the USB-MODEVM Interface board, while the daughtercard is the TLV320AIC12KEVMB/14KEVMB described previously in this manual.

SLAU229B–October 2007–Revised August 2008

TLV320AIC12KEVMB-K and TLV320AIC14KEVMB-K User's Guide

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Contents SN74LVC125A EVM-Compatible Device Data SheetsSN74LVC1G07 Power Supply Pinout List of Jumpers USB-MODEVM SW2 Settings Analog Interface FeaturesEVM Overview IntroductionDigital Interface Alternate Analog ConnectorsDigital Interface Pinout Sclk AIC12K/14K ResetSCL SDAStand-Alone Operation Power SuppliesUSB-MODEVM Interface Power Power Supply PinoutAnalog Output Default Jumper LocationsTLV320AIC12KEVMB-K/14KEVMB-K Block Diagram Analog InputTLV320AIC12KEVMB-K/14KEVMB-K Block Diagram USB-MODEVM SW2 Settings InstallationProgram Description USB-MODEVM Interface BoardInformation Tab Indicators and Main Screen ControlsInformation Tab Sounds and Audio Devices Properties Preset Configurations TabDevice Controls Tab Preset ConfigurationsDevice Controls Tab Control Register 1 Tab Control Register 1 Tab Control Register 2 Tab Control Register 2 Tab Control Register 3 Tab Control Register 4 Tab Control Register 5 Tab Command Line Interface Tab Command Line Interface Tab File Menu USB Control Endpoint Hidsetreport Request USB-MODEVM ProtocolSetreport Data Packet Configuration 0x01 0x80 0x02 Gpio Pin Assignments Gpio CapabilitySpi8 Writing ScriptsI2cstd I2cfast#example script i i2cfast 80 01 45 A0 r 80 01 Here is an example of a script TLV320AIC12KEVMB/14KEVMB Bill of Materials EVM Bill of MaterialsUSB-MODEVM Bill of Materials JMP7 JMP1-JMP4JMP8-JMP14 JMP5, JMP6Schematic diagram is provided as a reference Appendix a TLV320AIC12KEVMB/14KEVMB SchematicTLV320AIC12K14KDBTEVMB Ti a Appendix B USB-MODEVM Schematic Untitled USB-MODEVM Interface Rick Downs Evaluation BOARD/KIT Important Notice FCC WarningsRfid DSP