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Texas Instruments TPA6010A4EVM - User guides
User’s Guide
November 2000
Mixed-Signal Products
SLOU096
IMPORTANT NOTICE
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accordance with TI’s standard warranty. Testing and other quality control techniques are utilized to the extent
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Customers are responsible for their applications using TI components.
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Copyright  2000, Texas Instruments Incorporated
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.
Chapter Title—Attribute Reference
iii
iv
Running Title—Attribute Reference
1
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.1
Feature Highlights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.2
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.3
TPA6010A4 EVM Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-1
1-2
1-3
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
2–1
2–2
2–3
2–4
2–5
2–6
2–7
2–8
2–9
2–10
The TI TPA6010A4 Audio Amplifier Evaluation Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Quick Start Platform Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Module Preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Quick Start Module Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
TPA6010A4 EVM Connected for Stereo BTL Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8
TPA6010A4 EVM Connected for Stereo Single-Ended Output . . . . . . . . . . . . . . . . . . . . . . . 2-9
TPA6010A4 EVM Schematic Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10
TPA6010A4 EVM PCB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12
TPA6010A4 EVM Layer 2 — Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12
TPA6010A4 EVM Layer 3 — Ground . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13
TPA6010A4 EVM Bottom Layer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13
2–1
2–2
2–3
2–4
2–5
2–6
2–7
Typical TI Plug-N-Play Platform Jumper and Switch Settings for the TPA6010A4 . . . . . . 2-1
Typical TPA6010A4 EVM Jumper Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Platform Jumper and Switch Settings for the TPA6010A4 . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Typical TPA6010A4 EVM Jumper Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Typical TPA6010A4 EVM Jumper Settings for Stereo BTL Stand-Alone . . . . . . . . . . . . . . 2-8
Typical TPA6010A4 EVM Jumper Settings for Stereo Single-Ended Stand-Alone . . . . . . 2-9
TPA6010A4 EVM Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11
Contents
v
vi
Chapter 1
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
Introduction
1-1
Feature Highlights
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-kΩ load
Compatible with PC99 portable into 8-Ω load
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 Ω at 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
1-2
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
Introduction
Description
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
BUFFGAIN VOLUME
RLINE
ROUT–
TP1
PCBEEP
C16
BB ATT
SE/BTL
C7
C12
U1
C3
TP3
RDOCK
TP4
GND
TP2
C9
LDOCK
C1
R10
R9
ACTIVE
PASSIVE
R7
R6
C13
C8
C5
C6
C2
U2
R2
C4
LHP
S1
SHUTDOWN
R3 VDD GND
J3
SE/BTL
C14
R4 SHUTDOWN
J4
HP–SE
J2
HP/LINE
C15
LLINE
R8
LIN
HP/LINE
R12
R13
R5
R11
ROUT+
GND
PAS
ACT
FILTER SELECT BBENABLE VDD GND
J5
R1 C10
J1
RHP
+
RIN
LOUT–
GND
TEXAS INSTRUMENTS LOUT+
TPA6010A4 EVM SLOP334
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-Ω BTL, 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, RL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Ω
Minimum line out load impedance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 kΩ
Introduction
1-3
1-4
Introduction
Chapter 2
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
Operation
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 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
7b
1
C1+
On
Off
7b
ICC
VR2
JP4
VR1
+
J6
Speaker
Output
J9
Left
Out
+
Stereo
Headphone
Output
HP Out
R4
6
5
J10
+
S3
HP
Source
Spk(U2-U4) C3 C2
JP8
U5
JP7
HP(U5)
U2-U4
R3
+
JP6
U4
U5
GND
2
TP1
Plug-N-Play Audio Amplifier
Evaluation Platform
SLOP097 Rev. C.1
11a
– Left
Out
On
Conditioning
TEXAS
INSTRUMENTS
1997
2-2
VDD
In/Out
U2
U1
J5
Left
In
Mode
Mute
Polarity
Lo
Hi
****CAUTION****
Do not insert or remove
EVM boards with power
applied
3
+ Right –
Out
U3
Off
S2
J4
Stereo
In
Audio
Input
DC
Power
In/Out
J8
J7 Right
Out
LED2
VDD
Audio
Power
Amps
Signal Conditioning
9
R2
JP5
IDD
LED1
VCC
J3
Right
In
R1
7a
F2
B1
D1
D2
D3
D4 J2
AC/DC
In
Power
Input
U6
7b
POWER
SUPPLY
S1
Pwr
J1
VCC
In
+
JP3
Batt
JP2
AC/DC
JP1 (J2)
VCC(J1)
DC
SOURCE
F1
7b
9
R5
4
Operation
Quick Start List for Platform
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 a TPA6010A4 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) Set S2 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-kΩ and is dc-blocked.
Operation
2-3
Quick Start List for Platform
Evaluation module preparations
Figure 2–2. Module Preparation
BUFFGAIN VOLUME
16
RLINE
TP1
PCBEEP
17
ROUT–
C16
BB ATT
C12
U1
TP3
RDOCK
TP4
GND
TP2
C9
LDOCK
C1
R10
R9
ACTIVE
PASSIVE
R7
R6
C13
C5
C6
R3 VDD GND
J4
J3
SE/BTL
S1
SHUTDOWN
R4 SHUTDOWN
HP–SE
J2
C14
LHP
14
13
R2
C4
HP/LINE
C15
LLINE
R8
LIN
11b
C8
C2
U2
17
SE/BTL
C7
C3
10
HP/LINE
R12
R13
R5
R11
15
ROUT+
GND
PAS
ACT
FILTER SELECT BBENABLE VDD GND
J5
R1 C10
J1
RHP
+
RIN
12
LOUT–
GND
TEXAS INSTRUMENTS LOUT+
TPA6010A4 EVM SLOP334
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.
2-4
Operation
Quick Start List for Platform
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.
Operation
2-5
Quick Start List for Stand-Alone
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
2
RLINE
TP1
PCBEEP
5
C16
BB ATT
R9
PASSIVE
ACTIVE
SE/BTL
C7
C12
U1
TP3
RDOCK
TP4
GND
TP2
C9
LDOCK
C5
C6
C2
R6
C13
U2
R3 VDD GND
J4
J3
SE/BTL
S1
SHUTDOWN
R4 SHUTDOWN
HP–SE
J2
LHP
8
11
R2
C4
C14
6c
C8
HP/LINE
C15
LLINE
R8
LIN
6a, b
HP/LINE
R12
R13
C1
R7
4
GND
C3
R10
ROUT+
ROUT–
R5
R11
10
BUFFGAIN VOLUME
PAS
ACT
FILTER SELECT BBENABLE VDD GND
J5
R1 C10
J1
RHP
+
RIN
4
9
16
7
LOUT–
GND
TEXAS INSTRUMENTS LOUT+
TPA6010A4 EVM SLOP334
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-kΩ and is dc-blocked.
2-6
Operation
Quick Start List for Stand-Alone
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.
Operation
2-7
Stand-Alone Connection Diagrams
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
RLINE
TP1
PCBEEP
C16
SE/BTL
C12
U1
TP3
RDOCK
TP4
GND
TP2
C9
LDOCK
C1
ACTIVE
C13
C2
U2
R2
C4
LHP
S1
SHUTDOWN
R3 VDD GND
J3
SE/BTL
C14
External Shut
Down Control
(active low)
R4 SHUTDOWN
J4
HP–SE
J2
HP/LINE
C15
LLINE
R8
LIN
C6
R6
R7
C8
C5
R9
PASSIVE
HP/LINE
R12
R13
C3
R10
Right
GND
C7
BB ATT
ROUT+
ROUT–
R5
R11
Audio
Input
(Left)
BUFFGAIN VOLUME
PAS
ACT
Audio
Input
(Right)
FILTER SELECT BBENABLE VDD GND
J5
R1 C10
J1
RHP
+
RIN
LOUT–
Left
GND
TEXAS INSTRUMENTS LOUT+
TPA6010A4 EVM SLOP334
5V
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:
2-8
ON = Shunt installed, OFF = Open
Operation
Stand-Alone Connection Diagrams
2.4.2
TPA6010A4 EVM Connected for Stereo Single-Ended Output
Figure 2–5. TPA6010A4 EVM Connected for Stereo Single-Ended Output
RLINE
C16
TP1
PCBEEP
BB ATT
GND
R9
PASSIVE
R7
R6
C12
U1
TP3
RDOCK
TP4
GND
TP2
C9
LDOCK
C5
C6
C2
C13
U2
R2
C4
R3 VDD GND
J3
SE/BTL
C14
LHP
R4 SHUTDOWN
J4
HP–SE
J2
S1
SHUTDOWN
33 µF –
1000 µF
C8
HP/LINE
C15
LLINE
R8
LIN
+
SE/BTL
C7
C1
ACTIVE
HP/LINE
R12
R13
C3
R10
ROUT+
ROUT–
R5
R11
Audio
Input
(Left)
BUFFGAIN VOLUME
PAS
FILTER SELECT BBENABLE VDD GND
J5
R1 C10
J1
RHP
+
RIN
ACT
Audio
Input
(Right)
+
LOUT–
33 µF –
1000 µF
GND
TEXAS INSTRUMENTS LOUT+
TPA6010A4 EVM SLOP334
5V
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
Operation
2-9
Reference
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
VDD
C8
0.1 µF
VDD
C10 10 µF
1
GND
J1
2
BBENABLE
3
VDD
LOUT+
GND
LOUT–
TPA6010A4
LOUT+
CLK
BBENABLE LDOCK
28
27
1 µF
5
C3
0.47 µF
6
LHP
C1
0.47 µF
C5
0.47 µF
7
LLINE
8
PCBEEP
TP1
C6
RLINE
RHP
RIN
VDD
0.47 µF 9
BYPASS
LIN
LHPIN
VDD
PCBEEP
BBIN
RLINEIN
BBOUT
C4
0.47 µF 11 RIN
SHUTDOWN
S1
13
14
VOLUME
LLINEIN
0.47 µF 10 RHPIN
12
PVDD
BUFFGAIN
C2
R3 100 kΩ
LDOCK TP2
BUFFGAIN
4
LIN
C12
0.022 µF
26
R1 100 kΩ
C7
LOUT–
PVDD
RDOCK
SHUTDOWN SE/BTL
HP/LINE
ROUT–
ROUT+
R2
100 kΩ
GND
ACT
J5
FILTER
SELECT
25
R13 50 kΩ
24
VOLUME
23
R12 50 kΩ
22
R5
100 kΩ
BB ATT
R11
50 kΩ
R6
15 kΩ
C16
0.01 µF
21
PAS
C13
0.01 µF
R9
200 kΩ
PASSIVE
20
19
18
17
ACTIVE
R10
200 kΩ
TLV2450
VDD
4 _ 6
U2 1
R8 15 kΩ
3 +
2
C14
0.01 µF
R7
C15
15 kΩ 0.01 µF
5
GND TP4
RDOCK TP3
16
15
SE/BTL
C9
0.1 µF
ROUT–
SHUTDOWN
ROUT+
J4
J2
HP/LINE
J3
HP/LINE
HP/SE
HP/BTL
R4
100 kΩ
VDD
2-10
Operation
Reference
2.5.2
EVM Parts List
Table 2–9 is the TPA6010A4 EVM parts list.
Table 2–7. TPA6010A4 EVM Parts List
Ref.
Description
Size
EVM
Qty.
Manufacturer/
Part Number
C8, C9
Capacitor, ceramic chip,
0.1 µF @ 16 V, +10%, X7R
0603
2
Murata
GRM39X7R104K16
C1 – C6
Capacitor, 0.47 µF @ 16 V
+80%/–20%, nonpolarized
0603
6
Panasonic
ECJ–1VF1C474Z
C12
Capacitor, 22 nF @ 16 V
+80%/–20%, nonpolarized
0603
1
Panasonic
ECJ–1VB1C223K
C13 –
C16
Capacitor, 0.01 µF @ 16 V
+10%, nonpolarized
0603
4
Panasonic
ECJ–1VB1C103K
C7
Capacitor, 1.0 µF @ 16 V
+80%/–20%, Y5V
1
Murata
GRM40Y5V105Z16
C10
Capacitor, 10 µF @ 6.3 V,
SMD
A
2
Panasonic
CS–TOJY106R
R1 – R5
Resistor, 100 kΩ, 1/16 W,
10%
0603
5
Panasonic
ERJ-3GSYJ104V
R6 – R8
Resistor, 15 kΩ, 1/16 W,
10%
0603
3
Panasonic
ERJ-3GSYJ153V
R11 –
R13
Potentiometer, 50 kΩ,
Cermet ST SL, through-hole
3
Bourns
3362P–503
R9, R10
Potentiometer, 200 kΩ,
Cermet ST SL, through-hole
3
Bourns
3362P–204
S1
Switch, momentary
1
Panasonic
8050SCT–ND
TP1 –
TP4
Test point, red
4
Farnell
240–345
J1 – J4
Header, 2 position
2 mm
4
Norcomp
J5
Header, 3 position
2 mm
1
Norcomp
P1 – P5
Shunts
2 mm
5
2JM–G
U1
IC, TPA6010A4 2-W stereo
audio amplifier
TSSOP-28
1
TI
TPA6010A4PWP
U2
IC, TPV2450 single-supply
op amp, 6-pin
SOT–23
1
TI
TPV2450DBV
Note:
SMD
Vendor Number
C11 is not used.
Operation
2-11
Reference
2.5.3
Module PCB Layers
The following illustrations depict the TPA6010A4 EVM PCB layers and
silkscreen. These drawings are not to scale. Gerber plots can be obtained from
any TI Sales Office.
Figure 2–7. TPA6010A4 EVM PCB
Figure 2–8. TPA6010A4 EVM Layer 2 — Power
Note:
2-12
All open areas are solid copper planes.
Operation
Reference
Figure 2–9. TPA6010A4 EVM Layer 3 — Ground
Note:
All open areas are solid copper planes.
Figure 2–10. TPA6010A4 EVM Bottom Layer
Operation
2-13
2-14
Operation
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