Texas Instruments TPA2001D2 User manual


 
  
 
November 2000 Mixed-Signal Products
User’s Guide
SLOU093

IMPORTANT NOTICE
TexasInstruments andits subsidiaries(TI) reservethe rightto makechanges totheir productsor todiscontinue
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 acknowledgment, 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
TIdeemsnecessarytosupport thiswarranty. Specifictestingofallparameters ofeachdevice isnotnecessarily
performed, except those mandated by government requirements.
Customers are responsible for their applications using TI components.
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.
TIassumes noliabilityforapplicationsassistance orcustomer productdesign. TIdoes notwarrantorrepresent
thatanylicense,eitherexpressorimplied,isgrantedunderanypatentright,copyright,maskworkright,orother
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 2000, Texas Instruments Incorporated

Running Title—Attribute Reference
iii
Chapter Title—Attribute Reference
Preface
Read This First
Related Documentation From Texas Instruments
 TI 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.
 TPA2001D2 1-W STEREO CLASS-D AUDIO POWER
AMPLIFIER
(literature number SLOS292) This is the data sheet
for the TPA2001D2 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
testedforcompliancewiththelimitsofcomputingdevicespursuanttosubpart
Jofpart 15ofFCCrules,which aredesignedtoprovidereasonableprotection
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.

iv

Running Title—Attribute Reference
v
Chapter Title—Attribute Reference
Contents
1 Introduction 1-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.1 Feature Highlights 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.2 Description 1-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.3 TPA2001D2 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 2-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.4.1 TPA2001D2 EVM Connected for Stereo Output 2-6. . . . . . . . . . . . . . . . . . . . . . . . .
2.4.2 TPA2001D2 Audio Power Amplifier Evaluation Module Parts List 2-7. . . . . . . . . .
2.4.3 TPA2001D2 Filterless Class-D EVM Schematic 2-8. . . . . . . . . . . . . . . . . . . . . . . . .
2.4.4 TPA2001D2 Filterless Class-D EVM PCB Layers 2-9. . . . . . . . . . . . . . . . . . . . . . . .

Running Title—Attribute Reference
vi
Figures
1–1 The TI TPA2001D2 Audio Amplifier EVM Without Output Filter—Top View 1-3. . . . . . . . . . . .
1–2 The TI TPA2001D2 Audio Amplifier EVM Without Output Filter—Bottom 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 TPA2001D2 EVM Connected for Stereo Output 2-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2–5 TPA2001D2 Filterless Class-D EVM Schematic Diagram 2-8. . . . . . . . . . . . . . . . . . . . . . . . . . .
2–6 TPA2001D2 Filterless Class-D EVM Top Assembly 2-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2–7 TPA2001D2 Filterless Class-D EVM Bottom Assembly 2-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2–8 TPA2001D2 Filterless Class-D EVM Top Layer 2-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2–9 TPA2001D2 Filterless Class-D EVM Bottom Layer 2-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tables
2–1 Typical TI Plug-N-Play Platform Jumper and Switch Settings for the TPA2001D2 2-1. . . . . .
2–2 Typical TPA2001D2 EVM Jumper Settings 2-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2–3 Platform Jumper and Switch Settings for the TPA2001D2 2-3. . . . . . . . . . . . . . . . . . . . . . . . . .
2–4 Typical TPA2001D2 EVM Jumper Settings 2-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2–5 TPA2001D2 EVM Gain Settings 2-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2–6 TPA2001D2 EVM Parts List 2-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-1
Introduction
This chapter provides an overview of the Texas Instruments (TI) TPA2001D2
filterless class-D audio amplifier evaluation module (SLOP315). It includes a
listofEVM features,abriefdescriptionof themoduleillustratedwithapictorial
diagram, and a list of EVM specifications.
Topic Page
1.1 Feature Highlights 1–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.2 Description 1–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.3 TPA2001D2 EVM Specifications 1–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 1

Feature Highlights
1-2
Introduction
1.1 Feature Highlights
The TI TPA2001D2 audio amplifier evaluation module and the TI plug-n-play
audio amplifier evaluation platform include the following features:
TPA2001D2 Stereo 1-W Filterless Class-D Audio Power Amplifier
Evaluation Module
Class-D without output filter
Internal depop circuitry to minimize transients in outputs
High efficiency
Low distortion
Low supply current (8 mA)
1 W per channel output power into 8 Ωat 5 V
Low current consumption in shutdown mode
Four selectable gain settings: 8, 12, 17.5, and 23.5 dB
Differential stereo inputs and outputs
24-pin TSSOP PWP package
Quick and Easy Configuration With the TI Plug-N-Play Audio Amplifier
Evaluation Platform
Evaluation module is designed to simply plug into the platform,
automatically making all signal, control, and power connections
Platform provides flexible power options
Jumpers on the platform select power and module control options
Switches on the platform route signals
Platformprovides quick andeasyaudioinput and outputconnections
Platform Power Options
External 5-V – 15-V dc VCC supply inputs
External regulated VDD supply input
Socket for onboard 5 V/3.3 V VDD voltage regulator EVM
Onboard overvoltage and reverse polarity power protection
Platform Audio Input and Output Connections
Left and right RCA phono jack inputs
Miniature stereo phone jack input
Left and right RCA phono jack outputs
Left and right compression speaker terminal outputs
Miniature stereo headphone jack output

Description
1-3
Introduction
1.2 Description
The TPA2001D2 filterless class-D stereo audio power amplifier evaluation
module is a complete, 1-W per channel class-D stereo audio power amplifier
that can operate without an output filter. It consists of the TI TPA2001D2
class-D stereo 1-W 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 1-1/2 inches (Figure 1–1 and Figure 1–2).
Figure 1–1.The TI TPA2001D2 Audio Amplifier EVM Without Output Filter—Top View
GND
ROUT+
ROUT–
SHUTDOWN
GND
LOUT–
LOUT+
C7
C12
VDD GND
LIN–
GND
LIN+
VDD GND
RIN+
GND
RIN–
TPA2001D2 EVM
SLOP315 U1
R1
2000
+
+
S1
SHUTDOWN
GAIN0
GAIN1
C11
C9
C10
C5
C4
C3
C2
C1
C6
R2
R3
C8
C15
C16
Figure 1–2.The TI TPA2001D2 Audio Amplifier EVM Without Output Filter—Bottom View
C17
R4
C18
C19
C20
C21
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,ortobewired directlyintoexistingcircuitsandequipment
when used stand-alone.

TPA2001D2 EVM Specifications
1-4
Introduction
The platform has room for a single TPA2001D2 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,
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 .
1.3 TPA2001D2 EVM Specifications
Supply voltage range, VDD 4.5 V to 5.5 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Supply current, IDD 1 A max. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous output power per channel, PO: 8 Ω, VDD = 5 V 1 W. . . . . . . . . . . . . . . . . . . . . . . . . . .
Minimum load impedance, RL8 Ω. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .