Texas Instruments TPA2000D1 User manual

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2001 Mixed-Signal Products
User’s Guide
SLOU083A

Information About Cautions and Warnings
iii
Read This First
Preface
Read This First
Information About Cautions and Warnings
This book may contain cautions and warnings.
This is an example of a caution statement.
A caution statement describes a situation that could potentially
damage your software or equipment.
This is an example of a warning statement.
A warning statement describes a situation that could potentially
cause harm to you.
The information in a caution or a warning is provided for your protection.
Please read each caution and warning carefully.
Related Documentation From Texas Instruments
JTI Plug-N-Play Audio Amplifier Evaluation Platform (literature
number SLOU011) provides detailed information on the evaluation
platform and its use with TI audio evaluation modules.
JTPA2000D1 2-W Mono Class-D Audio Power Amplifier
(literature number SLOS328) This is the data sheet for the
TPA2000D1 audio amplifier integrated circuit.

Running Title—Attribute Reference
iv
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
testedforcompliancewiththe limitsofcomputing devicespursuantto subpart
Jofpart15ofFCCrules,whichare designedtoprovide reasonableprotection
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.

Running Title—Attribute Reference
v
Contents
Contents
1 Introduction 1-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.1 Feature Highlights 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.2 Description 1-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.3 TPA2000D1 EVM Specifications 1-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2 Operation 2-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.1 Precautions 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.2 Quick Start List for Platform 2-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.3 Quick Start List for Stand-Alone 2-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.4 Reference 2-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.4.1 TPA2000D1 Filterless Class-D EVM Schematic 2-7. . . . . . . . . . . . . . . . . . . . . . . . .
2.4.2 TPA2000D1 Audio Power Amplifier Evaluation Module Parts List 2-8. . . . . . . . . .
2.4.3 TPA2000D1 Filterless Class-D EVM PCB Layers 2-9. . . . . . . . . . . . . . . . . . . . . . . .
Figures
1–1 The TI TPA2000D1 Audio Amplifier EVM Without Output Filter—Top View 1-3. . . . . . . . . . . .
2–1 Quick Start Platform Map 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2–2 Module Preparation 2-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2–3 Quick Start Module Map 2-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2–4 TPA2000D1 Class-D EVM Schematic Diagram 2-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2–5 TPA2000D1 Filterless Class-D EVM Top Layer 2-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2–6 TPA2000D1 FIlterless Class-D EVM Bottom Layer 2-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tables
2–1 Typical TI Plug-N-Play Platform Jumper and Switch Settings for the TPA2000D1 2-1. . . . . .
2–2 Typical TPA2000D1 EVM Jumper Settings 2-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2–3 Platform Jumper and Switch Settings for the TPA2000D1 2-3. . . . . . . . . . . . . . . . . . . . . . . . . .
2–4 Typical TPA2000D1 EVM Jumper Settings 2-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2–5 TPA2000D1 EVM Gain Settings 2-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2–6 TPA2000D1 EVM Parts List 2-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

vi

1-1
Introduction
Introduction
This chapter provides an overview of the Texas Instruments (TI) TPA2000D1
filterless class-D audio amplifier evaluation module (SLOU083). It includes a
listofEVMfeatures,abriefdescriptionofthemoduleillustratedwithapictorial
diagram, and a list of EVM specifications.
Topic Page
1.1 Feature Highlights 1–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.2 Description 1–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.3 TPA2000D1 EVM Specifications 1–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 1

Feature Highlights
1-2 Introduction
1.1 Feature Highlights
The TI TPA2000D1 audio amplifier evaluation module and the TI plug-n-play
audio amplifier evaluation platform include the following features:
-TPA2000D1 Mono 2-W Filterless Class-D Audio Power Amplifier
Evaluation Module
JClass-D without output filter
J2.7 V to 5.5 V supply voltage range
JInternal depop circuitry to minimize transients in outputs
JHigh efficiency
JLow distortion
JLow-supply current (5 mA)
J2-W output power into 4 Ωat 5 V
JLow current consumption in shutdown mode
JFour selectable gain settings: 6, 12, 17.5, and 23.5 dB
JDifferential stereo input
J16-pin TSSOP PWP package
-Quick and Easy Configuration With the TI Plug-N-Play Audio Amplifier
Evaluation Platform
JEvaluation module is designed to simply plug into the platform,
automatically making all signal, control, and power connections.
JPlatform provides flexible power options
JJumpers on the platform select power and module control options
JSwitches on the platform route signals
JPlatformprovidesquickandeasy audio input and output connections
-Platform Power Options
JExternal 5-V –15-V dc VCC supply inputs
JExternal regulated VDD supply input
JSocket for onboard 5 V/3.3 V VDD voltage regulator EVM
JOnboard overvoltage and reverse polarity power protection
-Platform Audio Input and Output Connections
JLeft and right RCA phono jack inputs
JMiniature stereo phone jack input
JLeft and right RCA phono jack outputs
JLeft and right compression speaker terminal outputs
JMiniature stereo headphone jack output

Description
1-3
Introduction
1.2 Description
The TPA2000D1 filterless class-D mono audio power amplifier evaluation
module is a complete, 2-W class-D audio power amplifier that can operate
without an output filter. It consists of the TI TPA2000D1 class-D mono 2-W
audiopoweramplifierIC along with a small number of other parts mounted on
acircuitboardthatmeasuresapproximately1-1/4inchesby 1-1/4inches (see
Figure 1–1.
Figure 1–1.The TI TPA2000D1 Audio Amplifier EVM Without Output Filter—Top View
TEXAS
INSTRUMENTS
TPA2000D1 EVM
SLOP327
SHUTDOWN
R1
C1
C7
C2
C3
R2 R3
IN+
VDD GND
C8 C5
IN–J1
R4
C4
GAIN1
J2
GAIN0
S1
C6
U1
GND
OUT+
OUT–
Single in-line header pins extend from the underside of the module circuit
board to allow the EVM to be plugged into the TI plug-n-play audio amplifier
evaluationplatform, or tobe wired directlyintoexisting circuitsand equipment
when used stand-alone.
The platform has room for two TPA2000D1 evaluation modules 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,
andconnectsthemtoaversatilearrayofstandardaudioinputandoutputjacks
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.

TPA2000D1 EVM Specifications
1-4 Introduction
1.3 TPA2000D1 EVM Specifications
Supply voltage range, VDD 2.7 V to 5.5 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Supply current, IDD 2 A max. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous output power per channel, PO: 4 Ω, VDD = 5 V 2 W. . . . . . . . . . . . . . . . . . . . . . . . . . .
Minimum load impedance, RL4 Ω. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-1
Operation
Operation
The steps in this chapter can be followed to quickly prepare the TPA2000D1
filterless class-D audio amplifier EVM for use. Using the TPA2000D1 with the
TI plug-n-play audio amplifier evaluation platform is a quick and easy way to
connectpower, signal and control inputs,andsignaloutputs 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 can
be wired directly into existing circuits or equipment.
Theplatform switch andjumpersettings shown in Table2–1are typical for the
TPA2000D1 EVM and will cause the TPA2000D1 to shut down when a plug
is inserted into platform headphone jack J10.
Table 2–1. Typical TI Plug-N-Play Platform Jumper and Switch Settings for the
TPA2000D1
EVM JP4 JP5 JP6 JP7 JP8 S2 S3
P-N-P Platform X ON Mute X Lo See Note 2 U5
Notes: 1) ON = Jumper installed, OFF = Jumper NOT Installed, X = Don’t care
2) SetS2 to ONwhen signal conditioningboard is installedin U1;set S2
to OFF when no signal conditioning board is installed.
Table 2–2. Typical TPA2000D1 EVM Jumper Settings
EVM GAIN0 GAIN1
TPA2000D1 ON ON
Note: ON = Jumper installed, OFF = Jumper NOT Installed, X = Don’t care
Topic 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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.4 Reference 2–7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 2