Texas Instruments TLV320AIC12KEVM-K, User Manual

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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 TLV320AIC12KEVM-K/14KEVM-K Block Diagram
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Kit Operation
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.
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.
The digital control signals can be applied directly to J4 and J5 (top or bottom side). The modular
TLV320AIC12KEVM/14KEVM can also be connected directly to the USB-MODEVM Interface board
included as part of the TLV320AIC12EVM-K/14EVM-K. See the product folder for this
EVM or the
TLV320AIC12K/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 note
that jumper W5 must be set to position 1-2 (IOVDD=3.3V) when using the USB-MODEVM for I
2
C
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.
Used for correct polarity for FSD. In stand-alone master, FSD must be pulled high
W2 1-2
(2-3), In stand alone slave, FSD must be pulled low (1-2).
W3 Installed Provides a means of measuring IOVDD current
W4 Installed 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
W5 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 user
W7 Installed
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)
This section provides information on using the TLV320AIC12KEVM-K/14KEVM-K, including set up,
program installation, and program usage.
A block diagram of the TLV320AIC12KEVM-K/14KEVM-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 TLV320AIC12KEVM/14KEVM described previously in this manual.
SLAU229A – October 2007 – Revised June 2008 TLV320AIC12KEVM-K and TLV320AIC14KEVM-K User's Guide 7
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