Texas Instruments MIXED SIGNAL PRODUCTS TPA0103 - Manual (Page 14)

Quick Start List for Stand-Alone
2-4 Quick Start
2.3 Quick Start List for Stand-Alone
Follow these steps to use the TPA0103 EVM stand-alone or connect it into
existing circuits or equipment. Connections to the TPA0103 module header
pins can be made via individual sockets, wire-wrapping, or soldering to the
pins, either on the top or the bottom of the module circuit board. Numbered
callouts for selected steps are shown in Figure 2–2 and details appear in
Chapter 3.
Figure 2–2. Quick Start Module Map
GND
ROUT+
HP/L*
COUT–
MODE A
SDWN
GND
COUT+
LOUT+
C1
C2
R6
GND
GND
LIN
LHP
C3
R16
C10 C9
VDD GND
R9
C7
C6
RHP
RIN
GND
GND
S3
S4
S5
R11
C11
+
S2
MODE B
R5
S1
C12
R18
R2
R1
R3
R13
R14
R4
C8
R15
R12
R7 R8
R10
C5
TPA0103 EVM
REV. A
Lit.# SLOP103
–3
009228
4
3
R17
U1
- Power supply
1) Ensure that all external power sources are set to OFF.
2) Connect an external regulated power supply set to 5 V to the module VDD
and GND pins taking care to observe marked polarity.
- TPA0103 EVM jumpers
Setting the EVM for Center or L/R as indicated in the table below will cause
the EVM to operate in the center channel BTL mode (speaker).
3) Set the jumpers on the TPA0103 EVM as indicated in Table 2–5.
Table 2–5. TPA0103 EVM Stand-Alone Jumper settings
EVM OUTPUT MODE S1 S2 S3 S4 S5
Center or L/R ON ON OFF OFF OFF
Note: OFF = Open, ON = Closed
- Inputs and outputs
4) Ensure that signal source level adjustments and EVM gain controls, R13,
R14, and R17, are set to minimum.
5) Connect the audio source to the module IN+ and GND pins, taking care
to observe marked polarity.
6) Connect the SDWN pin to V
DD
through a Normally Open switch.
7) Connect a 4-
Ω
to 8-
Ω
speaker to the module COUT+ and COUT– pins.
- Power-up
8) Verify correct voltage and input polarity and set the external power supply
to ON.
9) Adjust the signal source level and EVM gain levels as needed.