Texas Instruments TPA0242 - Manual (Page 14)

Quick Start List for Platform
2-4 Quick Start
- Evaluation module preparations
Figure 2–2. Module Preparation
11
12
13
14
GND
ROUT+
ROUT–
SE/BTL S1
SHUTDOWN
GND
LOUT–
LOUT+
C11
C2
C13
VDD GND
L IN+
GND
L LINE–
L HP
VDD GND
R HP
R LINE–
GND
R IN+
C10
+
TPA00242 EVM Board
SLOP275
U1
+
TEXAS
INSTRUMENTS
R2
R1 PCBEEP
C1
C12
C6 C5 C4
R3 S2
C7 C8 C9
C3
SHUTDOWN
R4 S3 S4
HP/LINE
Table 2–4. Typical TPA0242 EVM Jumper Settings
EVM S3
TPA0242 OFF
Note: ON = Shunt installed, OFF = Open
11) To allow the module SE/BTL control input to switch the amplifier IC
between single ended (SE) and bridge-tied load (BTL) output modes, set
output mode jumper S3 to
OFF. To keep the module amplifier IC in the
single-ended output mode regardless of the control input state, set jumper
S3 to
ON.
12) To allow the module HP/LINE control input to switch the amplifier IC
between using the HP pins and the LINE pins as the signal inputs, set the
input mode jumper S3 to
OFF. To keep the amplifier IC in the HP input
mode regardless of the control input state, set jumper S3 to ON.
- Power Up
13) To allow the amplifier IC to switch from the LINE inputs to the HP inputs
when the output switches from BTL output mode to SE output mode and
vice versa, set jumper S4 to
ON. To allow the inputs and output modes to
switch independently, set jumper S4 to OFF.
Platform LED2 should light indicating the presence of V
DD
, and the evaluation
modules installed on the platform should begin operation.
14) Adjust the signal source level as needed.