Texas Instruments TPA6010A4 User manual


  
 
November 2000 Mixed-Signal Products
User’s Guide
SLOU096

IMPORTANT NOTICE
Texas 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 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
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.
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.
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 2000, Texas Instruments Incorporated

iii
Chapter Title—Attribute Reference

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.
 TPA6010A4 STEREO 2-W AUDIO POWER AMPLIFIER WITH
BASS BOOST AND DC VOLUME CONTROL
(literature number
SLOS268) This is the data sheet for the TPA6010A4 audio
amplifier integrated circuit.
 TLV2450, TLV2451, TLV2452, TLV2453, TLV2454, TLV2455,
TLV245xA FAMILY OF 23-MA 220kHz RAIL-TO-RAIL
INPUT/OUTPUT OPERATIONAL AMPLIFIERS WITH
SHUTDOWN
(literature number SLOS218) This is the data sheet
for the TLV2450 op amp integrated circuit used on the EVM.
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.

iv

Running Title—Attribute Reference
v
Contents

1 Introduction 1-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.1 Feature Highlights 1-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.2 Description 1-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.3 TPA6010A4 EVM Specifications 1-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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 2-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.4 Stand-Alone Connection Diagrams 2-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.4.1 TPA6010A4 EVM Connected for Stereo BTL Output 2-8. . . . . . . . . . . . . . . . . . . . .
2.4.2 TPA6010A4 EVM Connected for Stereo Single-Ended Output 2-9. . . . . . . . . . . . .
2.5 Reference 2-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.5.1 EVM Schematic 2-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.5.2 EVM Parts List 2-11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.5.3 Module PCB Layers 2-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1–1 The TI TPA6010A4 Audio Amplifier Evaluation Module 1-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2–1 Quick Start Platform Map 2-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2–2 Module Preparation 2-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2–3 Quick Start Module Map 2-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2–4 TPA6010A4 EVM Connected for Stereo BTL Output 2-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2–5 TPA6010A4 EVM Connected for Stereo Single-Ended Output 2-9. . . . . . . . . . . . . . . . . . . . . . .
2–6 TPA6010A4 EVM Schematic Diagram 2-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2–7 TPA6010A4 EVM PCB 2-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2–8 TPA6010A4 EVM Layer 2 — Power 2-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2–9 TPA6010A4 EVM Layer 3 — Ground 2-13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2–10 TPA6010A4 EVM Bottom Layer 2-13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2–1 Typical TI Plug-N-Play Platform Jumper and Switch Settings for the TPA6010A4 2-1. . . . . .
2–2 Typical TPA6010A4 EVM Jumper Settings 2-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2–3 Platform Jumper and Switch Settings for the TPA6010A4 2-3. . . . . . . . . . . . . . . . . . . . . . . . . . .
2–4 Typical TPA6010A4 EVM Jumper Settings 2-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2–5 Typical TPA6010A4 EVM Jumper Settings for Stereo BTL Stand-Alone 2-8. . . . . . . . . . . . . .
2–6 Typical TPA6010A4 EVM Jumper Settings for Stereo Single-Ended Stand-Alone 2-9. . . . . .
2–7 TPA6010A4 EVM Parts List 2-11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

vi

1-1
Introduction

This chapter provides an overview of the Texas Instruments TPA6010A4 audio
amplifier evaluation module (SLOP334). 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 TPA6010A4 EVM Specifications 1–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 1

Feature Highlights
1-2
Introduction
1.1 Feature Highlights
The TI TPA6010A4 audio amplifier evaluation module and the TI plug-n-play
audio amplifier evaluation platform include the following features:
TPA6010A4 audio power amplifier evaluation module
Bass boost (with tunable active and passive filters)
Compatible with PC99 desktop line-out into 10-kΩload
Compatible with PC99 portable into 8-Ωload
Internal depop circuitry to minimize transients in outputs
Dual channel, bridge-tied load (BTL) or single-ended operation
2 W per channel output power into 3 Ωat 5 V, BTL
Line outs (LDOCK out, RDOCK out)
Low current consumption in shutdown mode (60 µA)
Internal input MUX selects among two sets of stereo inputs
DC voltage volume control from +20 dB to –40 dB
Differential stereo inputs
PC Beep input (must be dc-blocked)
Quick and easy configuration with the TI plug-n-play audio amplifier evalu-
ation 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
Platform provides quick and easy audio input and output connections
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 TPA6010A4 audio power amplifier evaluation module is a complete,
2-watt per channel stereo audio power amplifier with bass boost and dc
volume control. It consists of the TI TPA6010A4 stereo 2-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).
Figure 1–1.The TI TPA6010A4 Audio Amplifier Evaluation Module
GND
ROUT+
ROUT–
SE/BTL
S1
SHUTDOWN
GND
LOUT–
LOUT+
C4
C12
VDD GND
LIN
LLINE
LHP
VDD GND
RHP
RLINE
RIN
C10
+
U1
TEXAS INSTRUMENTS
R2
R5
PCBEEP
SHUTDOWN
HP/LINE
BUFFGAIN VOLUME
R12
R13
C8
C9
R4
J2 J3J4
TPA6010A4 EVM SLOP334
SE/BTL
HP/LINE
HP–SE
C2
C6
C5
C7
C3
C1
C16
TP1
FILTER SELECT BBENABLE R1
J5 J1
ACT
PAS
BB ATT
R11
R10 R9
ACTIVE PASSIVE
R6
R7
R8
C15 C13
C14
R3
U2
RDOCK
LDOCK
GND
TP4
TP2
TP3
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
evaluation platform, or to be wired directly into existing circuits and equipment
when used stand-alone.
The platform has room for a single TPA6010A4 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 .
1.3 TPA6010A4 EVM Specifications
Supply voltage range, VDD 4.5 V to 5.5 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Supply current, IDD 2 A max. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous output power per channel, PO: 3-ΩBTL, VDD=5 V 2 W. . . . . . .
Audio input voltage, VI,: HP input 5 Vpp max. . . . . . . . . . . . . . . . . . . . . . . . . .
Line input 5 Vpp max. . . . . . . . . . . . . . . . . . . . . . . .
PC BEEP input 5 Vpp max. . . . . . . . . . . . . . . . . . . .
Minimum load impedance, RL3 Ω. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Minimum line out load impedance 1 kΩ. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-4
Introduction

2-1
Operation

The quick start lists in this chapter contain steps that can be followed to quickly
prepare the TPA6010A4 audio amplifier EVM for use either with the TI
plug-n-play audio amplifier evaluation platform or for stand-alone operation.
Using the EVM with the TI evaluation platform is a quick and easy way to
connect power, signal and control inputs, and signal outputs to the EVM.
The platform switch and jumper settings shown in Table 2–1 are typical for the
TPA6010A4 EVM and will cause the TPA6010A4 to switch to single-ended
output mode 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
TPA6010A4
EVM JP6 JP7 JP8 S2 S3
P-N-P Platform Mode X Hi Note 2 U2–U4
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.
Table 2–2. Typical TPA6010A4 EVM Jumper Settings
EVM BBENABLE HP/LINE HP–SE SE/BTL FILTER SELECT
TPA6010A4 ON OFF ON OFF ACT
Note: ON = Shunt installed, OFF = Open
Topic Page
2.1 Precautions 2–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.2 Quick Start List for Platform 2–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.3 Quick Start List for Stand-Alone 2–6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.4 Stand-Alone Connection Diagrams 2–8. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.5 Reference 2–10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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 — 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 Conditioning
S2
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-Play Audio 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
7b
7b
7b 7b
911a
9
6 5

Quick Start List for Platform
2-3
Operation
2.2 Quick Start List for Platform
Follow these steps when using the TPA6010A4 EVM with the TI plug-n-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 Figure 2–2.
Platform preparations
1) Ensure that all external power sources are set to
OFF and that the platform
power switch S1 is set to
OFF.
2) Install aTPA6010A4 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
Hi.
5) Set jumper JP6 to select the Mode control input (causes the TPA6010A4
to switch to the single-ended output mode if a plug is inserted into platform
headphone jack J10).
6) If the headphone jack (J10) output will be used, set headphone source
switch S3 to U2–U4.
Table 2–3. Platform Jumper and Switch Settings for the TPA6010A4
EVM JP6 JP7 JP8 S2 S3
P-N-P Platform Mode X Hi Note 2 U2–U4
Notes: 1) X = Don’t care
2) SetS2 to
ON when signal conditioning board is installed in U1; set S2
to
OFF when no signal conditioning board is installed.
Power supply
7) Select and connect the power supply (ensure power supply is set to OFF ):
a) Connect an external regulated power supply set to 5 V to platform VDD
power input connector J6 taking care to observe marked polarity,
or
b) Install a voltage regulator EVM (SLVP097 or equiv.) in platform socket
U6. Connect a 7 V – 12 V power source to a platform VCC power input
J1 or J2 and jumper the appropriate power input (see platform user’s
guide).
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) If PCBEEP is to be used, a dc-blocked 1-V p–p 1-kHz square wave may
be applied to the EVM PCBEEP test point (TP1). (See the TPA6010A4
audio amplifier data sheet (TI lit number SLOS268) for more information.)
11) Connect the outputs:
a) Connect speakers to left and right RCA jacks J7 and J9 or to stripped
wire speaker connectors J8.,
and/or
b) Connect a line-level load to the EVM LDOCK and RDOCK terminals
that is
no less than 1-k Ω and is dc-blocked .

Quick Start List for Platform
2-4
Operation
Evaluation module preparations
Figure 2–2.Module Preparation
12
13
15
GND
ROUT+
ROUT–
SE/BTL
S1
SHUTDOWN
GND
LOUT–
LOUT+
C4
C12
VDD GND
LIN
LLINE
LHP
VDD GND
RHP
RLINE
RIN
C10
+
U1
TEXAS INSTRUMENTS
R2
R5
PCBEEP
SHUTDOWN
HP/LINE
BUFFGAIN VOLUME
R12
R13
C8
C9
R4
J2 J3J4
TPA6010A4 EVM SLOP334
SE/BTL
HP/LINE
HP–SE
C2
C6
C5
C7
C3
C1
C16
TP1
FILTER SELECT BBENABLE R1
J5 J1
ACT
PAS
BB ATT
R11
R10 R9
ACTIVE PASSIVE
R6
R7
R8
C15 C13
C14
R3
U2
RDOCK
LDOCK
GND
TP4
TP2
TP3
14
16
10 11b
17
17
Table 2–4. Typical TPA6010A4 EVM Jumper Settings
EVM BBENABLE HP/LINE HP–SE SE/BTL FILTER SELECT
TPA6010A4 ON OFF ON OFF ACT
Note: ON = Shunt installed, OFF = Open
12) To allow the module SE/BTL control input to switch the amplifier IC
between single ended (SE) and bridge-tied load (BTL) output modes, set
output mode jumper SE/BTL to
OFF . To keep the module amplifier IC in
the single-ended output mode regardless of the control input state, set
jumper SE/BTL to ON .
13) To allow the module HP/LINE control input to switch the amplifier IC
between the HP pins and the LINE pins as the signal inputs, set the input
mode jumper HP/LINE to OFF . To keep the amplifier IC in the HP input
mode regardless of the control input state, set jumper HP/LINE to ON .
14) To allow the amplifier IC to switch from the LINE inputs to the HP inputs
when the output switches from BTL output mode to SE output mode and
vice versa, set jumper HP–SE to ON . To allow the inputs and output modes
to switch independently, set jumper HP–SE to OFF .
15) To enable bass boost, set BBENABLE to ON . To disable bass boost, set
BBENABLE to OFF.
16) To select the onboard active or passive filter, set the FILTER SELECT
jumper to ACT for the active filter or to PAS for the passive filter.

Quick Start List for Platform
2-5
Operation
Power Up
17) Ensure that EVM potentiometers VOLUME, BUFFGAIN, and BB ATT are
set to their approximate mid points.
18) Verify 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.
19) Adjust the signal source level as needed.
Evaluation module controls
20) The EVM VOLUME potentiometer controls the volume of the platform
OUT+/– outputs. Turn this control clockwise to increase the volume.
21) The EVM BUFFGAIN potentiometer controls the volume to both the
platform OUT+/– outputs and the EVM LDOCK/RDOCK output
terminals. Turn this control clockwise to increase the volume.
22) The EVM BB ATT potentiometer controls the attenuation of the bass
boost. Turn this control clockwise to
decrease the bass boost attenuation.
23) The EVM ACTIVE and PASSIVE potentiometers control the cutoff
frequency for their respective filters. Turn these controls clockwise to
increase the filter cutoff frequency.

Quick Start List for Stand-Alone
2-6
Operation
2.3 Quick Start List for Stand-Alone
Follow these steps to use the TPA6010A4 EVM stand-alone or when
connecting it into existing circuits or equipment. Connections to the
TPA6010A4 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. Numbered callouts for selected steps are shown in Figure 2–3.
Figure 2–3.Quick Start Module Map
7
9
GND
ROUT+
ROUT–
SE/BTL
S1
SHUTDOWN
GND
LOUT–
LOUT+
C4
C12
VDD GND
LIN
LLINE
LHP
VDD GND
RHP
RLINE
RIN
C10
+
U1
TEXAS INSTRUMENTS
R2
R5
PCBEEP
SHUTDOWN
HP/LINE
BUFFGAIN VOLUME
R12
R13
C8
C9
R4
J2 J3J4
TPA6010A4 EVM SLOP334
SE/BTL
HP/LINE
HP–SE
C2
C6
C5
C7
C3
C1
C16
TP1
FILTER SELECT BBENABLE R1
J5 J1
ACT
PAS
BB ATT
R11
R10 R9
ACTIVE PASSIVE
R6
R7
R8
C15 C13
C14
R3
U2
RDOCK
LDOCK
GND
TP4
TP2
TP3
8
10
11
6c
5
4
4
2 16
6a, b
6a, b
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.
Inputs and outputs
3) Ensure that audio signal source level adjustments are set to minimum.
4) Connect the right (left) positive lead of the audio source to the module
RLINE (LLINE) pins and the negative lead to the RIN (LIN) pins. If using
the headphone inputs, connect the positive audio source to the module
RHP (LHP) and the negative lead to RIN (LIN). The inputs can be used
with a differential or single-ended audio source, but the headphone and
line have common positive inputs.
5) If PCBEEP is to be used, a dc-blocked 1-V p–p 1-kHz square wave may
be applied to the EVM PCBEEP test point (TP1). (See the TPA6010A4
audio amplifier data sheet (TI lit number SLOS268) for more information.)
6) Select output mode:
a) For BTL output, connect a speaker to the module OUT+ and OUT–
pins of each channel, (Figure 2–4)
or
b) For single-ended output, connect a headphone or a speaker to the
module OUT+ and GND pins of each channel through a 33 µF to
1000 µF output-coupling capacitor (Figure 2–5).
or
c) Connect a line-level load to the EVM LDOCK and RDOCK terminals
that is
no less than 1-k Ω and is dc-blocked .

Quick Start List for Stand-Alone
2-7
Operation
Evaluation module preparations
7) To allow the module SE/BTL control input to switch the amplifier IC
between single ended (SE) and bridge-tied load (BTL) output modes, set
output mode jumper SE/BTL to OFF . To keep the module amplifier IC in
the single-ended output mode regardless of the control input state, set
jumper SE/BTL to ON .
8) To allow the module HP/LINE control input to switch the amplifier IC
between the HP pins and the LINE pins as the signal inputs, set the input
mode jumper HP/LINE to OFF . To keep the amplifier IC in the HP input
mode regardless of the control input state, set jumper HP/LINE to ON .
9) To enable bass boost, set BBENABLE to
ON . To disable bass boost, set
BBENABLE to OFF.
10) To select the onboard active or passive filter, set the FILTER SELECT
jumper to ACT for the active filter or to PAS for the passive filter.
11) To allow the amplifier IC to switch from the LINE inputs to the HP inputs
when the output switches from BTL output mode to SE output mode and
vice versa, set jumper HP–SE to
ON . To allow the inputs and output modes
to switch independently, set jumper HP–SE to OFF . Connect control lines
to the various module control input pins as needed:
a) SE/BTL: A high selects the single-ended (SE) output mode; a low or
float selects the bridge-tied load (BTL) output mode.
b) HP/LINE: A high selects the LHP and RHP inputs; a low or float selects
the LLINE and RLINE inputs.
c) SHUTDOWN: A low shuts down the amplifier IC on the module; a high
or float allows normal operation.
EVM module controls
12) The EVM VOLUME potentiometer controls the volume of the platform
OUT+/– outputs. Turn this control clockwise to increase the volume.
13) The EVM BUFFGAIN potentiometer controls the volume to both the
platform OUT+/– outputs and the EVM LDOCK/RDOCK output
terminals. Turn this control clockwise to increase the volume.
14) The EVM BB ATT potentiometer controls the attenuation of the bass
boost. Turn this control clockwise to decrease the bass boost attenuation.
15) The EVM ACTIVE and PASSIVE potentiometers control the cutoff
frequency for their respective filters. Turn these controls clockwise to
increase the filter cutoff frequency.
Power-up
16) Ensure that EVM potentiometers VOLUME, BUFFGAIN, and BB ATT are
set to their approximate mid points.
17) Verify correct voltage and input polarity and set the external power supply
to
ON.
18) Adjust the signal source level as needed.

Stand-Alone Connection Diagrams
2-8
Operation
2.4 Stand-Alone Connection Diagrams
The power supply range is 4.5 V to 5.5 V and isolated OUT+ and OUT– lines
for BTL operation are required.
Note that the shutdown signal applied to the EVM SHUTDOWN pin must be
able to supply enough current to overcome the pullup resistor on the module
(100 kΩ).
2.4.1 TPA6010A4 EVM Connected for Stereo BTL Output
Figure 2–4 shows the TPA6010A4 EVM connected for stereo BTL operation.
Figure 2–4.TPA6010A4 EVM Connected for Stereo BTL Output
Audio
Input
(Right)
Audio
Input
(Left)
External Shut
Down Control
(active low)
Right
Left
GND
ROUT+
ROUT–
SE/BTL
S1
SHUTDOWN
GND
LOUT–
LOUT+
C4
C12
VDD GND
LIN
LLINE
LHP
VDD GND
RHP
RLINE
RIN
C10
+
U1
TEXAS INSTRUMENTS
R2
R5
PCBEEP
SHUTDOWN
HP/LINE
BUFFGAIN VOLUME
R12
R13
C8
C9
R4
J2 J3J4
TPA6010A4 EVM SLOP334
SE/BTL
HP/LINE
HP–SE
C2
C6
C5
C7
C3
C1
C16
TP1
FILTER SELECT BBENABLE R1
J5 J1
ACT
PAS
BB ATT
R11
R10 R9
ACTIVE PASSIVE
R6
R7
R8
C15 C13
C14
R3
U2
RDOCK
LDOCK
GND
TP4
TP2
TP3
5 V
Table 2–5. Typical TPA6010A4 EVM Jumper Settings for Stereo BTL Stand-Alone
EVM BBENABLE HP/LINE HP–SE SE/BTL FILTER SELECT
TPA6010A4 ON OFF ON OFF ACT
Note: ON = Shunt installed, OFF = Open

Stand-Alone Connection Diagrams
2-9
Operation
2.4.2 TPA6010A4 EVM Connected for Stereo Single-Ended Output
Figure 2–5.TPA6010A4 EVM Connected for Stereo Single-Ended Output
33 µF –
1000 µF
+
+
33 µF –
1000 µF
Audio
Input
(Right)
Audio
Input
(Left)
5 V
GND
ROUT+
ROUT–
SE/BTL
S1
SHUTDOWN
GND
LOUT–
LOUT+
C4
C12
VDD GND
LIN
LLINE
LHP
VDD GND
RHP
RLINE
RIN
C10
+
U1
TEXAS INSTRUMENTS
R2
R5
PCBEEP
SHUTDOWN
HP/LINE
BUFFGAIN VOLUME
R12
R13
C8
C9
R4
J2 J3J4
TPA6010A4 EVM SLOP334
SE/BTL
HP/LINE
HP–SE
C2
C6
C5
C7
C3
C1
C16
TP1
FILTER SELECT BBENABLE R1
J5 J1
ACT
PAS
BB ATT
R11
R10 R9
ACTIVE PASSIVE
R6
R7
R8
C15 C13
C14
R3
U2
RDOCK
LDOCK
GND
TP4
TP2
TP3
Table 2–6. Typical TPA6010A4 EVM Jumper Settings for Stereo Single-Ended
Stand-Alone
EVM BBENABLE HP/LINE HP–SE SE/BTL FILTER SELECT
TPA6010A4 ON OFF ON ON ACT
Note: ON = Shunt installed, OFF = Open

Reference
2-10
Operation
2.5 Reference
This section includes the TPA6010A4 EVM schematic, the EVM parts list, and
the module PCB layers.
2.5.1 EVM Schematic
Figure 2–6 shows the TPA6010A4 EVM schematic.
Figure 2–6.TPA6010A4 EVM Schematic Diagram
LOUT–GND
CLKLOUT+
LDOCKBBENABLE
PVDD BYPASS
BBOUTRLINEIN
PVDD RHPIN
RDOCKRIN
SE/BTLSHUTDOWN
BUFFGAINLIN
VOLUMELHPIN
VDD LLINEIN
BBINPCBEEP
10
9
12
11
6
5
8
7
2
1
4
3
23
22
21
20
19
18
17
16
15
24
LHP
ROUT–
SE/BTL
TPA6010A4
LIN
RIN
C1 0.47 µF
C3 0.47 µF
VDD
GND TP4
C9
0.1 µF
HP/LINE
ROUT+
ROUT–
GND
14
13
27
26
25
28
C5 0.47 µF
C6 0.47 µF
C2 0.47 µF
C4 0.47 µF
C7 1 µF
RHP
RLINE
PCBEEP
TP1
LLINE
R1 100 kΩ
BBENABLE
J1
S1
SHUTDOWN
R3 100 kΩ
VDD
VDD
VDD
R2
100 kΩ
J2 HP/LINE HP/SE
J4 R4
100 kΩ
HP/BTL J3
C10 10 µF
C8
0.1 µF
VDD
LDOCK TP2
RDOCK TP3
C12
0.022 µF
R8 15 kΩ
R13 50 kΩ
BUFFGAIN
R12 50 kΩ
VOLUME
PAS
ACT
FILTER
SELECT
LOUT–
LOUT+
BB ATT
R11
50 kΩ
J5
R5
100 kΩC16
0.01 µF
R6
15 kΩ
R9
200 kΩ
C13
0.01 µF
PASSIVE
_
+
TLV2450
U2
C15
0.01 µF
R7
15 kΩ
R10
200 kΩ
ACTIVE C14
0.01 µFVDD
1
6
32
4
5
SHUTDOWN
ROUT+
GND
HP/LINE