Texas Instruments TPA005D02 User Manual

TPA005D02 Class D Stereo
Audio Power Amplifier
Evaluation Module

User’s Guide

October 1998 Mixed-Signal Products

SLOU032A

IMPORTANT NOTICE

T exas Instruments and its subsidiaries (TI) reserve the right to make changes to their products or to discontinue
any product or service without notice, and advise customers to obtain the latest version of relevant information
to verify, before placing orders, that information being relied on is current and complete. All products are sold
subject to the terms and conditions of sale supplied at the time of order acknowledgement, including those
pertaining to warranty, patent infringement, and limitation of liability.

TI warrants performance of its semiconductor products to the specifications applicable at the time of sale in
accordance with TI’s standard warranty. Testing and other quality control techniques are utilized to the extent
TI deems necessary to support this warranty . Specific testing of all parameters of each device is not necessarily
performed, except those mandated by government requirements.

CERT AIN APPLICATIONS USING SEMICONDUCTOR PRODUCTS MAY INVOLVE POTENTIAL RISKS OF
DEATH, PERSONAL INJURY, OR SEVERE PROPERTY OR ENVIRONMENTAL DAMAGE (“CRITICAL
APPLICATIONS”). TI SEMICONDUCTOR PRODUCTS ARE NOT DESIGNED, AUTHORIZED, OR
WARRANTED TO BE SUITABLE FOR USE IN LIFE-SUPPORT DEVICES OR SYSTEMS OR OTHER
CRITICAL APPLICA TIONS. INCLUSION OF TI PRODUCTS IN SUCH APPLICATIONS IS UNDERST OOD TO
BE FULLY AT THE CUSTOMER’S RISK.

In order to minimize risks associated with the customer’s applications, adequate design and operating
safeguards must be provided by the customer to minimize inherent or procedural hazards.

TI assumes no liability for applications assistance or customer product design. TI does not warrant or represent
that any license, either express or implied, is granted under any patent right, copyright, mask work right, or other
intellectual property right of TI covering or relating to any combination, machine, or process in which such
semiconductor products or services might be or are used. TI’s publication of information regarding any third
party’s products or services does not constitute TI’s approval, warranty or endorsement thereof.

Copyright  1998, Texas Instruments Incorporated

Related Documentation From Texas Instruments

J

TI Plug-N-Play Audio Amplifier Evaluation Platform

number SLOU011) provides detailed information on the evaluation
platform and its use with TI audio evaluation modules.

J

TPA005D02 CLASS D STEREO AUDIO POWER AMPLIFIER

(literature number SLOS227) This is the data sheet for the
TPA005D02 audio amplifier integrated circuit.

FCC Warning

This equipment is intended for use in a laboratory test environment only. It
generates, uses, and can radiate radio frequency energy and has not been
tested for compliance with the limits of computing devices pursuant to subpart
J of part 15 of FCC rules, which are designed to provide reasonable protection
against radio frequency interference. Operation of this equipment in other
environments may cause interference with radio communications, in which
case the user at his own expense will be required to take whatever measures
may be required to correct this interference.

Preface

(literature

Trademarks

TI is a trademark of Texas Instruments Incorporated.

Chapter Title—Attribute Reference

iii

iv

Running Title—Attribute Reference

Contents

1 Introduction 1-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1.1 Feature Highlights 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1.2 Description 1-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1.3 TP A0202 EVM Specifications 1-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2 Quick Start 2-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.1 Precautions 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.2 Quick Start List for Platform 2-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.3 Quick Start List for Stand-Alone 2-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3 Details 3-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.1 Precautions 3-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.2 The TPA005D02 Audio Power Amplifier Evaluation Module 3-3. . . . . . . . . . . . . . . . . . . . . .

3.2.1 TPA005D02 Class D Stereo Audio Amplifier IC 3-4. . . . . . . . . . . . . . . . . . . . . . . . . .

3.2.2 Overview of Class D Audio Amplifiers 3-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.2.3 EVM Design Considerations 3-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.2.4 Efficiency of Class D vs. Linear Operation 3-15. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.3 Using The TPA005D02 Class D EVM With the Plug-N-Play Platform 3-22. . . . . . . . . . . . .

3.3.1 Installing and Removing EVM Boards 3-22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.3.2 Module Switches 3-23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.3.3 Signal Routing 3-24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.3.4 Mute 3-25. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.3.5 Power Requirements 3-26. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.3.6 Inputs and Outputs 3-27. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.4 Using The TPA005D02 Class D EVM Stand-Alone 3-28. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.4.1 TPA005D02 Class D EVM Connected for BTL Output 3-28. . . . . . . . . . . . . . . . . . .

3.5 TPA005D02 Audio Power Amplifier Evaluation Module Parts List 3-29. . . . . . . . . . . . . . . .

3.6 TPA005D02 Class D EVM Measured Characteristics 3-30. . . . . . . . . . . . . . . . . . . . . . . . . . .

3.7 TPA005D02 Class D EVM PCB Layers 3-33. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Chapter Title—Attribute Reference

v

Running Title—Attribute Reference

Figures

1–1 The TI TPA005D02 Class D Stereo Audio Amplifier Evaluation Module 1-3. . . . . . . . . . . . . . .

2–1 Quick Start Platform Map 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3–1 The TI Plug-N-Play Audio Amplifier Evaluation Platform 3-2. . . . . . . . . . . . . . . . . . . . . . . . . . . .

3–2 TPA005D02 Class D EVM 3-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3–3 TPA005D02 Class D EVM Schematic Diagram 3-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3–4 Class D Functional Diagram 3-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3–5 Class D Input and Output Waveforms 3-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3–6 Single-Ended Class D Output FIlter 3-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3–7 Low-Pass Filter for Bridged Application 3-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3–8 Resulting Bridged Output Filter 3-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3–9 Half-Bridge Class D Output Stage 3-15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3–10 Class D Currents 3-16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3–11 Class D Voltages 3-16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3–12 H-Bridge Class D Output Stage 3-17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3–13 Output Transistor Simplification for Conduction Loss Calculation 3-18. . . . . . . . . . . . . . . . . . .

3–14 Output Switching Losses 3-19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3–15 Audio Signal Showing Peak and RMS Power 3-20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3–16 Audio Signal Showing Peak and RMS Power (with Music Applied) 3-20. . . . . . . . . . . . . . . . . .

3–17 Supply Current vs Peak Output Voltage of TPA005D02 vs TPA0202 with Music Input 3-21.

3–18 Platform Signal Routing and Outputs 3-24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3–19 Mute/Mode and Polarity Control 3-25. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3–20 Typical Headphone Plug 3-27. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3–21. TPA005D02 Class D EVM Connected for Stereo BTL Output 3-28. . . . . . . . . . . . . . . . . . . . . . . .

3–22. Frequency Response 3-30. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3–23. Distortion versus Output Power 3-31. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3–24. Distortion versus Frequency 3-32. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3–25. Crosstalk versus Frequency 3-32. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3–26. TPA005D02 Class D EVM Silkscreen 3-33. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3–27. TPA005D02 Class D EVM Top Layer 3-33. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3–28. TPA005D02 Class D EVM 2nd Layer 3-34. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3–29. TPA005D02 Class D EVM 3rd Layer 3-34. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3–30. TPA005D02 Class D EVM Bottom Layer 3-35. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

T ables

2–1 Typical TI Plug-N-Play Platform Jumper and Switch Settings for the

2–2 Platform Jumper and Switch Settings for the TPA005D02 2-3. . . . . . . . . . . . . . . . . . . . . . . . . .

3–1 TPA005D02 Class D EVM Fault Indicator Table 3-14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3–2 Efficiency vs Output Power in 5-V 8-W H-Bridge Systems 3-19. . . . . . . . . . . . . . . . . . . . . . . . .

3–3 TPA005D02 Class D EVM Parts List 3-29. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

vi

TPA005D02 Class D EVM 2-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Chapter 1

Introduction

This chapter provides an overview of the T exas Instruments (TI) TP A005D02
Class D Stereo Audio Amplifier Evaluation Module (SLOP223). It includes a
list of EVM features, a brief description of the module illustrated with a pictorial
diagram, and a list of EVM specifications.

Topic Page

1.1 Feature Highlights 1–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1.2 Description 1–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1.3 TP A005D02 Class D EVM Specifications 1–4. . . . . . . . . . . . . . . . . . . . . . . .

Introduction

1-1

Feature Highlights

1.1 Feature Highlights

The TI TP A005D02 Class D Stereo Audio Amplifier Evaluation Module and the
TI Plug-N-Play Audio Amplifier Evaluation Platform include the following
features:

-

TPA005D02 Class D Stereo Audio Power Amplifier Evaluation Module

J

J

J

J

J

J

J

-

Quick and Easy Configuration with The TI Plug-N-Play Audio Amplifier
Evaluation Platform

J

External depop circuitry to eliminate turn-on transients in outputs
Dual channel, bridge-tied load (BTL) only operation
5-V operation
2 W per channel output power into 4 Ω at 5 V, BTL
Low current consumption in shutdown/mute mode (400 µA)
Module gain set to 24 dB
High efficiency

Evaluation module is designed to simply plug into the platform,
automatically making all signal, control, and power connections

J

Platform provides flexible power options

J

Jumpers on the platform select power and module control options

J

Switches on the platform route signals

J

Platform provides quick and easy audio input and output connections

-

Platform Power Options

J

External 5-V – 15-V DC VCC supply inputs

J

External regulated VDD supply input

J

Socket for onboard 5 V/3.3 V VDD voltage regulator EVM

J

Onboard overvoltage and reverse polarity power protection

-

Platform Audio Input and Output Connections

J

Left and right RCA phono jack inputs

J

Miniature stereo phone jack input

J

Left and right RCA phono jack outputs

J

Left and right compression speaker terminal outputs

J

Miniature stereo headphone jack output

1-2

Introduction

Description

1.2 Description

The TP A005D02 Class D Stereo Audio Power Amplifier Evaluation Module is
a complete, 2-Watt per channel stereo audio power amplifier . It consists of the
TI TPA005D02 Class D Stereo Audio Power Amplifier IC along with a small
number of other parts mounted on a circuit board that measures approximately
2

1/4

inches by 1

Figure 1–1.The TI TPA005D02 Class D Stereo Audio Amplifier Evaluation Module

3/4

inches (Figure 1–1).

GND
RIN+
RIN–

Shutdown
C1

R2
R1

Q1
LIN–

LIN+

GND

Mute

T exas Instruments

R6 R7

1998

C4
C2
C3

C5

R3

R4
R5

D1

S1

SLOP223

C8

S2

C6

C7

D2

1

C10

VDD

GND

C19

C20

L1

C14

L2

C21

L3

U1

L4

GND

D3

+

C12

C13

C9

C17

C15

+

C11

VDD

TPA005D02 EVM Board Rev. A

C24

C23

C25

C26

C22

C27

Rout+

Rout–

Mute

Lout–

Lout+

Single in-line header pins extend from the underside of the module circuit
board to allow the EVM to either be plugged into the TI Plug-N-Play Audio Am­plifier Evaluation Platform, or to be wired directly into existing circuits and
equipment when used stand-alone.

The platform has room for a single TPA005D02 class D evaluation module and
is a convenient vehicle for demonstrating TI’s audio power amplifier and
related evaluation modules. The EVMs simply plug into the platform, which
automatically provides power to the modules, interconnects them correctly,
and connects them to a versatile array of standard audio input and output jacks
and connectors. Easy-to-use configuration controls allow the platform and
EVMs to quickly model many possible end-equipment configurations.

There is nothing to build, nothing to solder, and nothing but the speakers
included with the platform to hook up.

Introduction

1-3

TPA005D02 Class D EVM Specifications

1.3 TPA005D02 Class D EVM Specifications

Supply voltage range, V
Supply current, I

DD

DD

Continuous output power per channel, P
Audio input voltage, V
Load impedance, R

: 0.47 Vpp max. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

I

L

4.5 V to 5.5 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.8 A max. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

:4-Ω BTL, VDD=5 V 2 W. . . . . . . . . . . . . . . . . . . . . .

O

4 Ω. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-4

Introduction

Chapter 2

Quick Start

Follow the steps in this chapter to quickly prepare the TPA005D02 Class D
Stereo Audio Amplifier EVM for use. Using the TP A005D02 class D EVM with
the TI Plug-N-Play Audio Amplifier Evaluation Platform is a quick and easy way
to connect power, signal and control inputs, and signal outputs to the EVM
using standard connectors. However, the audio amplifier evaluation module
can be used stand-alone by making connections directly to the module pins,
and it can be wired directly into existing circuits or equipment.

The platform switch and jumper settings shown in T able 2–1 are typical for the
TPA005D02 class D EVM.

Table 2–1. Typical TI Plug-N-Play Platform Jumper and Switch Settings for the
TPA005D02 Class D EVM

EVM JP6 JP7 JP8 S2 S3

P-N-P Platform Mute X Lo Note 2 U5

Notes: 1) X = Don’t care

2) Set S2 to ON when signal conditioning board is installed in U1; set S2
to OFF when no signal conditioning board is installed.

T opic Page

2.1 Precautions 2–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.2 Quick Start List for Platform 2–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.3 Quick Start List for Stand-Alone 2–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Quick Start

2-1

Precautions

2.1 Precautions

Power Supply Input Polarity and Maximum Voltage
Always ensure that the polarity and voltage of the external power

connected to V
input connector J6 are correct. Overvoltage or reverse-polarity

power input connector J1, J2, and/or VDD power

CC

power applied to these terminals can open onboard soldered-in
fuses and cause other damage to the platform, installed evaluation
modules, and/or the power source.

Inserting or Removing EVM Boards
Do not insert or remove EVM boards with power applied — damage

to the EVM board, the platform, or both may result.

Figure 2–1.

VCC

In

+

Audio
Input

9

AC/DC

In

Power

Input

7b

Quick Start Platform Map

7b

JP3

JP2

JP1

SOURCE

DC

VCC(J1)

J1

D4

J2

D3

Right

J3

In

Stereo

J4

In

Left

J5

In

TEXAS

INSTRUMENTS

1997

AC/DC

(J2)

D2

Signal Conditioning

Plug-N-Play Audio Amplifier
Evaluation Platform
SLOP097 Rev. C.1

F1

Batt

VR1

D1

LED1

VCC

****CAUTION****
Do not insert or remove
EVM boards with power

applied

C1+

R1

U1

117

Off Pwr

GND

On

S1

Audio
Power
Amps

OnOff

ConditioningS2

TP1

ICC
JP4

B1

IDD

U5

JP5

7b

U3 U4

R2

U2-U4

U5

HP

Source

SUPPLY

U2

HP(U5)

Polarity

S3

R3

R4

7b

POWER

U6

LED2

VDD

JP6

Lo
Hi

JP7

JP8

+

+

F2

J7

Right

Out

J8

+–+–
Right

Out

Left

Out

Mode
Mute

Spk(U2-U4)

J9

Left

Out

Stereo

C3 C2

HP Out

VR2

In/Out

VDD

J10

R5

DC
Power
In/Out

+

J6

Speaker
Output

Headphone
Output

7a

10

5

2-2

3

2

6

4

Quick Start

2.2 Quick Start List for Platform

Follow these steps when using the TP A005D02 class D EVM with the TI Plug­N-Play Audio Amplifier Evaluation Platform (see the platform user’s guide,
SLOU011, for additional details). Numbered callouts for selected steps are
shown in Figure 2–1 and details appear in Chapter 3.

-

Platform Preparations

Quick Start List for Platform

1) Ensure that all external power sources are set to
power switch S1 is set to

OFF.

2) Install a TP A005D02 module in platform socket U2, taking care to align the
module pins correctly.

3) Use switch S2 to select or bypass the signal conditioning EVM (U1).

4) Set control signal Polarity jumper JP8 to

5) Set jumper JP6 to select the

Mute

control input (causes the TP A005D02

Lo.

to mute if a plug is inserted into platform headphone jack J10).

U5

6) Set switch S3 to

. It is important that S3 always be in the U5 position

to avoid possible damage to the EVM and headphones when the
TPA005D02 class D EVM is installed in platform socket U2.

Table 2–2. Platform Jumper and Switch Settings for the TPA005D02

EVM JP6 JP7 JP8 S2 S3

P-N-P Platform Mute X Lo Note 2 U5

Notes: 1) X = Don’t care

ON

2) Set S2 to
to

OFF

-

Power supply

7) Select and connect the power supply (ensure power supply is set to
a) Connect an external regulated power supply set to 5 V to platform V

power input connector J6 taking care to observe marked polarity,
or

b) Install a voltage regulator EVM (SL VP097 or equiv .) in platform socket

U6. Connect a 7 V – 12 V power source to a platform V
J1 or J2 and jumper the appropriate power input (see platform user’s

guide).

when signal conditioning board is installed in U1; set S2

when no signal conditioning board is installed.

OFF

and that the platform

power input

CC

OFF

):

DD

-

Inputs and outputs

8) Ensure that the audio signal source level is set to minimum.

9) Connect the audio source to left and right RCA phono jacks J3 and J5 or
stereo miniature phone jack J4.

10) Connect 4-Ω – 8-Ω speakers (use 4-Ω for best performance) to left and
right RCA jacks J7 and J9 or to stripped wire speaker connectors J8.

-

Power Up

1 1) V erify correct voltage and input polarity and set the external power supply

to

ON.

If VCC and an onboard regulator EVM are used to provide VDD, set

platform power switch S1 to

ON.

Platform LED2 should light indicating the presence of VDD, and the evaluation
modules installed on the platform should begin operation.

12) Adjust the signal source level as needed.

Quick Start

2-3

Quick Start List for Stand-Alone

2.3 Quick Start List for Stand-Alone

Follow these steps to use the TPA005D02 class D EVM stand-alone or to
connect it into existing circuits or equipment. Connections to the TP A005D02
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.

-

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. Separate right
channel and left channel VDD supplies can be connected, or a single
supply can be used for both.

-

Inputs and outputs

3) Ensure that audio signal source level adjustments are set to minimum.

4) Connect the audio source to the module RIN+/RIN– and LIN+/LIN– pins,
taking care to observe marked polarity.

5) Connect a control signal to the module MUTE pin, if necessary . The control
signal should be high or floating for normal operation and low to mute the
module.

6) Connect a 4-Ω – 8-Ω speaker (use 4-Ω for best performance) to the
module ROUT+/ROUT– pins and another speaker to the LOUT+/LOUT–
pins, taking care to observe marked polarity.

-

Power-up

7) Verify correct voltage and input polarity and set the external power supply
to

ON.

2-4

The EVM should begin operation.

8) Adjust the signal source level as needed.

Quick Start

Chapter 3

Details

This chapter provides details on the TPA005D02 IC, the evaluation module,
and the steps in the Quick-Start List, a discussion on class D amplifiers,
additional application information, a parts list for the TPA005D02 class D
evaluation module, module performance graphs, and module PCB layer
illustrations.

Topic Page

3.1 Precautions 3-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.2 The TPA005D02 Audio Power Amplifier Evaluation Module 3-3. . . . . . .

3.3 Using The TPA005D02 Class D EVM With the P-N-P Platform 3-22. . . .

3.4 Using The TPA005D02 Class D EVM Stand-Alone 3-28. . . . . . . . . . . . . . .

3.5 TP A005D02 Audio Power Amplifier Evaluation Module Parts List 3-29

3.6 TP A005D02 Class D EVM Measured Characteristics 3-30. . . . . . . . . . . . .

3.7 TP A005D02 Class D EVM PCB Layers 3-33. . . . . . . . . . . . . . . . . . . . . . . . . .

Details

3-1