Texas Instruments TPA0103 User Manual download pdf (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+

GND

LIN

LHP

R16

C10C9

VDD GND

RHP

RIN

GND

R11

C11

MODE B

C12

R18

R13

R14

R15

R12

R7R8

R10

TPA0103 EVM

REV. A

Lit.# SLOP103

–3

009228

R17

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

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

ON.

9) Adjust the signal source level and EVM gain levels as needed.

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