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

Precautions
2-2 Operation
2.1 Precautions
Power Supply Input Polarity and Maximum Voltage
Always ensure that the polarity and voltage of the external power
connected to VCC power input connector J1, J2, and/or VDD power
input connector J6 are correct. Overvoltage or reverse-polarity
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.Quick Start Platform Map
Signal Conditioning
****CAUTION****
Do not insert or remove
EVM boards with power
applied
ICC
JP4
F1
VR1
R1
JP3
JP2 JP1 AC/DC
(J2)
VCC(J1)
D1 D2 D3
D4 J2
J3 J4 J5
AC/DC
In
VCC
In
+
J1
DC
SOURCE
LED1 VCC
LED2 VDD
R2
JP5 IDD
B1
U6
POWER
SUPPLY
U3 U4
U5
U1
U2
Audio
Power
Amps
OnOff ConditioningS2
J7 J8 Right
Out Left
Out
+–+–
JP6
Mode
Mute
Spk(U2-U4)
JP8
J9 Left
Out
JP7
S3 HP Source
U2-U4
U5
Polarity
Lo
Hi
HP(U5)
C3 C2
++
R3
R5
J10
Stereo
HP Out
TP1
GND
Plug-N-PlayAudio Amplifier
Evaluation Platform
SLOP097 Rev. C.1
Stereo
In
Right
In Left
In
J6 In/Out VDD
F2
VR2 +
DC
Power
In/Out
Speaker
Output
Headphone
Output
Audio
Input
Power
Input
Batt
C1+
Right
Out
On Off Pwr
S1
TEXAS INSTRUMENTS 1997
R4
7a
1
23 4
5
6
7b
7b
7b 7b
910
13

Quick Start List for Platform
2-3
Operation
2.2 Quick Start List for Platform
Follow these steps when using the TPA2000D1 EVM with the TI plug-n-play
audio amplifier evaluation platform (see the platform user’s guide, literature
number SLOU011, for additional details). Numbered callouts for selected
steps are shown in Figure 2–1 and Figure 2–2.
-Platform preparations
1) EnsurethatallexternalpowersourcesaresettoOFFandthattheplatform
power switch S1 is set to OFF.
2) Install a TPA2000D1 module in platform socket U3 or U4, 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 Lo.
5) Set jumper JP6 to select the Mute control input (causes the TPA2000D1
to shut down if a plug is inserted into platform headphone jack J10).
6) If a headphone amplifier will be installed in U5, set the headphone source
switch S3 to U5.
Table 2–3. 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 Note 2 U5
Notes: 1) ON = Jumper installed, OFF = Jumper NOT Installed, X = Don’t care
2) SetS2 to ON when signalconditioning board isinstalled in U1;set S2
to OFF when no signal conditioning board is installed.
-Power supply
7) Selectandconnectthepowersupply(ensurepowersupplyissettoOFF ):
a) Connectanexternalregulatedpowersupplysetto5VtoplatformVDD
power input connector J6 taking care to observe marked polarity.
or
b) InstallavoltageregulatorEVM(SLVP097orequiv.)inplatformsocket
U6.Connecta7-V–12-VpowersourcetoaplatformVCCpowerinput
J1 or J2 and jumper the appropriate power input (see platform user’s
guide).IfusingJ1,J2,orB1,setS1toONtosupplypowertotheEVM.
-Inputs and outputs
8) Ensure that the audio signal source level is set to minimum.
9) Connect the audio source to left or right RCA phono jacks J3 or J5 or
stereo miniature phone jack J4.
10) Connect a speaker to left or right RCA jacks J7 or J9 or to stripped wire
speaker connectors J8.

Quick Start List for Platform
2-4 Operation
-Evaluation Module Preparations
11) Use jumpers GAIN0 and GAIN1 to set the gain (see Figure 2–2 and
Table 2–4).
Figure 2–2.Module Preparation
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–
11
Table 2–4. Typical TPA2000D1 EVM Jumper Settings
GAIN1 GAIN0 GAIN (dB)
ON ON 6
ON OF 12
OFF ON 17.5
OFF OFF 23.5
Note: ON = Jumper installed, OFF = Open, X = Don’t care
-Power Up
12) Verify correct voltage and input polarity and set the external power supply
toON.IfVCC andanonboard regulatorEVMareusedto provideVDD,set
platform power switch S1 to ON.
PlatformLED2shouldlightindicatingthepresenceofVDD,andtheevaluation
modules installed on the platform should begin operation.
13) Adjust the signal source level as needed.

Quick Start List for Stand-Alone
2-5
Operation
2.3 Quick Start List for Stand-Alone
Follow these steps to use the TPA2000D1 EVM stand-alone or when
connecting it into existing circuits or equipment. Connections to the
TPA2000D1 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 2–3.
Figure 2–3.Quick Start Module Map
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–
1
-Power supply
1) Ensure that all external power sources are set to OFF.
2) Connectanexternalregulatedpower supplyset to5VtothemoduleVDD
and GND pins taking care to observe marked polarity.
-Inputs and outputs
3) Ensure that audio signal source level adjustments are set to minimum.
4) Connect the positive lead of the audio source to the module IN+ pins and
the negative lead to the IN–pin.
5) Connect a speaker to OUT+ and OUT–.
-Evaluation module preparations
6) Use jumpers GAIN0 and GAIN1 to set the gain as shown in Table 2–5.

Quick Start List for Stand-Alone
2-6 Operation
Table 2–5. TPA2000D1 EVM Gain Settings
GAIN1 GAIN0 GAIN (dB)
ON ON 6
ON OF 12
OFF ON 17.5
OFF OFF 23.5
Note: ON = Jumper installed, OFF = Open, X = Don’t care
-Control inputs
7) SHUTDOWN: A low shuts down the amplifier IC on the module; a high
allows normal operation.
-Power up
8) Connectexternalpowersupplysetto5VacrossEVMVDDandGNDpins.
9) Verify correct voltage and input polarity and set the external power supply
to ON.
The EVM should begin operation.
10) Adjust the signal source level as needed.

Reference
2-7
Operation
2.4 Reference
2.4.1 TPA2000D1 Filterless Class-D EVM Schematic
The TPA2000D1 filterless class-D EVM schematic is shown in Figure 2–4.
Figure 2–4.TPA2000D1 Class-D EVM Schematic Diagram
INP
INN
SHUTDOWN
GAIN0
GAIN1
PVDD
OUTP
GNDP
BYPASS
AGND
COSC
ROSC
VDD
PVDD
OUTN
GNDN
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
U1
TPA2000D1
C5
1 µF
C6
1 µF
C7
1 µF
C1
220 pF R1
120 kΩ
C2
1 µF
C3
1 µF
J1
J2
C4
1 µF
C8
10 µF
R3
120 kΩ
S1
R2
120 kΩ
OUT–
VDD
OUT+
IN–
IN+
VDD
R4
120 kΩ
SHUTDOWN
GND
GND

TPA2000D1 Audio Power Amplifier Evaluation Module Parts List
2-8 Operation
2.4.2 TPA2000D1 Audio Power Amplifier Evaluation Module Parts List
Table 2–6.TPA2000D1 EVM Parts List
Reference Description Size EVM
Qty. Manufacturer/ Part Number
C1 Capacitor, ceramic, 220 pF, ±5%,
X7R, 50 V 603 1 Phillips 06032R221K9B20D
C2–7Capacitor, ceramic, 1.0 µF,
80%/–20%, Y5V, 16 V 603 6 Panasonic ECJ–1VF1A105Z
C8 Capacitor, ceramic, 10 µF,
80%/–20%, Y5V, 16 V 1210 1 Murata GRM235-Y5V106Z16
R1–R4 Resistor, chip, 120 kΩ, 1/10 W,
5%, XICON 0805 4 Mouser 260–120K
S1 Switch, momentary pushbutton,
12 V, 50 mA 0.291 x 0.138 x 0.134”1 Panasonic EVQ–PJS04K
J1, J2 Header, 2 position 2 mm 2 Norcomp
2163–02–ND(Digi–Key)
Shunts 2 mm 2 3M
2163–02–ND(Digi–Key)
Headers, 0.100 inch centers, 1/2
length, 0.1 inch center 0.5”, 0.25”, 0.1”8 Samtec TSW–19–8–G–S
U1 IC, 2 W, class–D audio power
amp 16-pin TSSOP 1 TI TPA2000D1PW
PCB PCB, 2 layer, 1.32”(L) x 1.22”(W)
x 0.062”(T) fits U3 on PnP 1 TI SLOP327

TPA2000D1 Filterless Class-D EVM PCB Layers
2-9
Operation
2.4.3 TPA2000D1 Filterless Class-D EVM PCB Layers
The following illustrations depict the TPA2000D1 filterless class-D EVM PCB
layers.Thesedrawingsarenottoscale.Gerberplotscanbeobtainedfromany
TI sales office.
Figure 2–5.TPA2000D1 Filterless Class-D EVM Top Layer
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–
Figure 2–6.TPA2000D1 Filterless Class-D EVM Bottom Layer (Top View)

2-10 Operation

2-12
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