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User’s Guide
December 2002
HPL
SLOU156
EVM IMPORTANT NOTICE
Texas Instruments (TI) provides the enclosed product(s) under the following conditions:
This evaluation kit being sold by TI is intended for use for ENGINEERING DEVELOPMENT OR EVALUATION
PURPOSES ONLY and is not considered by TI to be fit for commercial use. As such, the goods being provided
may not be complete in terms of required design-, marketing-, and/or manufacturing-related protective
considerations, including product safety measures typically found in the end product incorporating the goods.
As a prototype, this product does not fall within the scope of the European Union directive on electromagnetic
compatibility and therefore may not meet the technical requirements of the directive.
Should this evaluation kit not meet the specifications indicated in the EVM User’s Guide, the kit may be returned
within 30 days from the date of delivery for a full refund. THE FOREGOING WARRANTY IS THE EXCLUSIVE
WARRANTY MADE BY SELLER TO BUYER AND IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESSED,
IMPLIED, OR STATUTORY, INCLUDING ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR ANY
PARTICULAR PURPOSE.
The user assumes all responsibility and liability for proper and safe handling of the goods. Further, the user
indemnifies TI from all claims arising from the handling or use of the goods. Please be aware that the products
received may not be regulatory compliant or agency certified (FCC, UL, CE, etc.). Due to the open construction
of the product, it is the user’s responsibility to take any and all appropriate precautions with regard to electrostatic
discharge.
EXCEPT TO THE EXTENT OF THE INDEMNITY SET FORTH ABOVE, NEITHER PARTY SHALL BE LIABLE
TO THE OTHER FOR ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES.
TI currently deals with a variety of customers for products, and therefore our arrangement with the user is not
exclusive.
TI assumes no liability for applications assistance, customer product design, software performance, or
infringement of patents or services described herein.
Please read the EVM User’s Guide and, specifically, the EVM Warnings and Restrictions notice in the EVM
User’s Guide prior to handling the product. This notice contains important safety information about temperatures
and voltages. For further safety concerns, please contact the TI application engineer.
Persons handling the product must have electronics training and observe good laboratory practice standards.
No license is granted under any patent right or other intellectual property right of TI covering or relating to any
machine, process, or combination in which such TI products or services might be or are used.
Mailing Address:
Texas Instruments
Post Office Box 655303
Dallas, Texas 75265
Copyright 2002, Texas Instruments Incorporated
EVM WARNINGS AND RESTRICTIONS
It is important to operate this EVM within the supply voltage range of 8 V to 18 V.
Exceeding the specified supply voltage range may cause unexpected operation and/or
irreversible damage to the EVM. If there are questions concerning the supply voltage range,
please contact a TI field representative prior to applying power to the device under test (DUT).
Applying loads outside of the specified load impedance may result in unintended operation
and/or possible permanent damage to the EVM. Please consult the EVM User’s Guide prior
to connecting any load to the EVM output. If there is uncertainty as to the load specification,
please contact a TI field representative.
During normal operation, some circuit components may have case temperatures greater than
65°C. The EVM is designed to operate properly with certain components above 65°C as long
as the input and output ranges are maintained. These components include but are not limited
to linear regulators, switching transistors, pass transistors, and current sense resistors. These
types of devices can be identified using the EVM schematic located in the EVM User’s Guide.
When placing measurement probes near these devices during operation, please be aware
that these devices may be very warm to the touch.
Mailing Address:
Texas Instruments
Post Office Box 655303
Dallas, Texas 75265
Copyright 2002, Texas Instruments Incorporated
Preface
Read This First
About This Manual
This user’s guide describes the characteristics, operation, and use of the
TPA3001D1EVM. The user’s guide includes a schematic diagram, bill of mate-
rials (BOM), and board layout diagrams.
How to Use This Manual
This document contains the following chapters:
- Chapter 1—Introduction
- Chapter 2—Quick Start
- Chapter 3—Bill of Materials, Schematic, and PCB Layers
Trademarks
PowerPAD is a trademark of Texas Instruments.
v
Information About Cautions and Warnings
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.
vi
Contents
1
2
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
1.1
1.2
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
TPA3001D1EVM Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Quick Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
2.1
2.2
2.3
2.4
Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Quick Start List for the Platform . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Quick Start List for Stand-Alone Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
3
Bill of Materials, Schematic, and PCB Layers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
3.1
3.2
3.3
TPA3001D1EVM Bill of Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
TPA3001D1EVM Schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
TPA3001D1EVM PCB Layers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
vii
Figures
1–1
1–2
2–1
3–1
3–2
3–3
The TI TPA3001D1 Audio Power Amplifier EVM—Top View . . . . . . . . . . . . . . . . . . . . . . . . 1-2
The TI TPA3001D1 Audio Power Amplifier EVM—Bottom View . . . . . . . . . . . . . . . . . . . . . 1-2
Quick Start Platform Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
TPA3001D1EVM Schematic Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
TPA3001D1EVM Top Layer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
TPA3001D1EVM Bottom Layer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
Tables
2–1
2–2
2–3
2–4
2–5
3–1
Typical TI Plug-N-Play Platform Jumper and Switch Settings for the TPA3001D1 . . . . . . 2-2
Typical TPA3001D1EVM Jumper Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Platform Jumper and Switch Settings for the TPA3001D1 . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Typical TPA3001D1EVM Jumper Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
TPA3001D1EVM Gain Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7
TPA3001D1EVM Bill of Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
viii
Chapter 1
Introduction
This chapter provides an overview of the Texas Instruments (TI)
TPA3001D1EVM class-D audio amplifier evaluation module. It includes a list
of EVM features, a brief illustrated description of the module, and a list of EVM
specifications.
Topic
Page
1.1 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
1.2 TPA3001D1EVM Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
1-1
Description
1.1 Description
The TPA3001D1 evaluation module (EVM) is a 20-W class-D mono audio
power amplifier complete with a small number of external components
mounted on a circuit board measuring approximately 2 1/4 inches by 1 1/2
inches (Figure 1–1 and Figure 1–2).
Figure 1–1. The TI TPA3001D1 Audio Power Amplifier EVM—Top View
Figure 1–2. The TI TPA3001D1 Audio Power Amplifier EVM—Bottom View
Note:
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 equip-
ment when used stand-alone operation.
1-2
TPA3001D1EVM Specifications
The platform, which has room for a single TPA3001D1EVM, 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.
1.2 TPA3001D1EVM Specifications
Supply voltage range, V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 V to 18 V
CC
Supply current, I . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 A max
cc
Continuous output power, R = 8 Ω, V
= 18 V, THD+N =10%, P . 20 W
O
L
DD
†
Minimum load impedance, R . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Ω
L
†
Refer to the TPA3001D1 data sheet for recommendations on the maximum output power when
driving a 4-Ω load.
Introduction
1-3
1-4
Chapter 2
Quick Start
Follow the steps in this chapter to quickly prepare the TPA3001D1EVM for
use. Using the TPA3001D1EVM with the TI plug-n-play audio amplifier
evaluation platform is a quick and easy way to connect power, signal and
control inputs, and signal outputs to the EVM using standard connectors.
However, the audio amplifier evaluation module can be used in stand-alone
operation by making connections directly to the module pins, and it can be
wired directly into existing circuits or equipment.
Topic
Page
2.1 Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
2.2 Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
2.3 Quick Start List for the Platform . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
2.4 Quick Start List for Stand-Alone Operation . . . . . . . . . . . . . . . . . . . . . . 2-5
2-1
Configuration
2.1 Configuration
The platform switch and jumper settings shown in Table 2–1 are typical for the
TPA3001D1EVM and cause the TPA3001D1 to shut down when a plug is
inserted into platform headphone jack J10 (see Note 3 in Table 2–1).
Table 2–1.Typical TI Plug-N-Play Platform Jumper and Switch Settings for the TPA3001D1
Power Type
VCC (J1)
JP1
ON
JP2
OFF
ON
JP3
OFF
OFF
JP4
ON
ON
JP5
X
JP6
JP7
X
JP8
X
S1
ON
ON
S2 (Note 2)
OFF
S3
U5
U5
Mode
Mode
AC/DC (J2)
OFF
X
X
X
OFF
Notes: 1) ON = Jumper installed, OFF = Jumper NOT Installed, X = Don’t care
2) Set to ON when tone control board SLOP109 is installed in U1, otherwise set to OFF.
3) R3 must be removed from the TPA3001D1EVM to allow the headphone jack to control the shutdown of the
TPA3001D1.
Table 2–2.Typical TPA3001D1EVM Jumper Settings
EVM
TPA3001D1
GAIN0
GAIN1
ON
ON
Note: ON = Jumper installed, OFF = Jumper NOT Installed
2.2 Precautions
Power Supply Input Polarity and Maximum Voltage
Always ensure the polarity and voltage of the external power connected to
power input connector J1, J2, and/or V power input connector J6 are
V
CC
DD
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.
2-2
Quick Start List for the Platform
2.3 Quick Start List for the Platform
Follow these steps when using the TPA3001D1EVM with the TI plug-n-play
audio amplifier evaluation platform (see the platform user’s guide, SLOU011,
for additional details).
Platform Preparations
1) Ensure all external power sources and platform power switch S1 are set
to OFF.
2) Install a TPA3001D1 module in platform socket U2, taking care to align the
module pins correctly (EVM power pins engage sockets U2 and U3).
3) Set switch S2 to OFF.
4) Set switch S3 to U5.
5) Set jumper JP6 to select the Mode control input.
Table 2–3.Platform Jumper and Switch Settings for the TPA3001D1EVM
Power Type
JP1
JP4
JP5
JP6
JP7
JP8
S1
S2 (Note 2)
S3
VCC (J1)
ON
ON
X
Mode
X
X
ON
OFF
U5
Notes: 1) ON = Jumper installed, OFF = Jumper NOT Installed, X = Don’t care
2) Set to ON when tone control board SLOP109 is installed in U1.
Power Supply
Do not exceed 15 V on the plug-n-play platform, or Zener diode VR1 may
fail. If a power supply greater than 15 V is to be used, VR1 must be removed.
6) Ensure power switch S1 is set to OFF. Connect a regulated power supply
with an output of 8 V to 15 V to J1, taking care to observe marked polarity.
7) Set jumper JP1 for DC source to be from input J1.
8) Set jumper JP4 for VCC power to EVMs.
Inputs and Outputs
9) Ensure that the audio signal source level is set to minimum.
10) Connect the audio source to the right RCA phono jack J3 or the mono min-
iature phone jack J4.
11) Connect speakers to the right RCA jack J7 or to the stripped wire speaker
connectors J8.
Quick Start
2-3
Quick Start List for the Platform
Figure 2–1. Quick Start Platform Map
7
1
6
8
ICC
JP4
C1+
F1
VR1
Power
Input
6
DC
Power
In/Out
R2
R1
Audio
Power
Amps
Signal Conditioning
Audio
Input
10
Speaker
Output
11
5
Mode
Mute
Polarity
Lo
****CAUTION****
Do not insert or remove
EVM boards with power
applied
Hi
Stereo
Headphone
Output
Plug-N-Play Audio Amplifier
Evaluation Platform
SLOP097 Rev. C.1
HP Out
R3
R4
R5
3
4
2-4
Quick Start List for Stand-Alone Operation
Evaluation Module Preparations
12) Use jumpers GAIN0 and GAIN1 to set the gain (Table 2–4).
Table 2–4.Typical TPA3001D1EVM Jumper Settings
GAIN1
GAIN0
ON
GAIN (dB)
ON
ON
12
18
OFF
ON
OFF
OFF
23.6
36
OFF
Note: ON = Jumper installed, OFF = Jumper REMOVED
Power Up
13) Verify correct voltage and input polarity and set the external power supply
and platform power switch S1 to ON.
Note:
Platform LED1 should light indicating the presence of VCC, and the evalua-
tion module(s) installed on the platform should begin operation.
14) Set switch S2 to ON if tone control board SLOP109 is installed in U1.
15) Adjust the signal source level as needed.
2.4 Quick Start List for Stand-Alone Operation
Follow these steps to use the TPA3001D1EVM as a stand-alone unit, or when
connecting it into existing circuits or equipment. Connections to the
TPA3001D1 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.
Power Supply
1) Ensure that all external power sources are set to OFF.
2) Connect an external regulated power supply set from 8 V to 18 V to the
module VCC and GND pins taking care to observe marked polarity. It is
only necessary to use the ground pins adjacent to the module power pins.
Inputs and Outputs
3) Ensure that audio signal source level adjustments are set to minimum.
4) Connect the audio source across the module IN+ and IN– pins, taking care
to observe marked polarity. For single-ended input, the negative input pin
(IN–) should be connected to the ground of the audio signal source.
5) Connect a speaker to the module OUT+ and OUT– pins, taking care to
observe marked polarity.
Quick Start
2-5
Quick Start List for Stand-Alone Operation
Evaluation Module Preparations
6) Adjust the source signal level as needed.
7) Use jumpers GAIN0 and GAIN1 to set the gain as shown in Table 2–5.
Table 2–5.TPA3001D1EVM Gain Settings
GAIN1
GAIN0
ON
GAIN (dB)
ON
ON
12
18
OFF
ON
OFF
OFF
23.6
36
OFF
Note: ON = Jumper installed, OFF = Jumper NOT installed
Control Inputs
Note:
The control signals applied to the EVM shutdown inputs must have sufficient
current capability to overcome the 120–kΩ pullup resistor on each input.
Holding down S1 places the amplifier in the shutdown state. Releasing S1
returns the amplifier to the active state.
Refer to the TPA3001D1 data sheet (SLOS398) for logic threshold voltage
ratings.
8) SHUTDOWN: This pin is active low. A low on this pin shuts down the ampli-
fier; a high on this pin places the amplifier in an active state. Leaving this
pin floating also allows normal amplifier operation.
Power Up
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.
2-6
Chapter 3
Bill of Materials, Schematic, and PCB Layers
This chapter contains the bill of materials, schematic, and board layout for the
TPS3001D1EVM.
Topic
Page
3.1 TPA3001D1EVM Bill of Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
3.2 TPA3001D1EVM Schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
3.3 TPA3001D1EVM PCB Layers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
3-1
TPA3001D1EVM Bill of Materials
3.1 TPA3001D1EVM Bill of Materials
Table 3–1.TPA3001D1EVM Bill of Materials
Reference
Description
Size
Qty
MFG.
Part Number
C1, C2
Capacitor, ceramic, 0.47 µF, 80%/–20%, Y5V,
16 V
0805
2
Panasonic
ECJ–2VF1C474Z
C3–C6, C10, C11
Capacitor, ceramic, 1 µF, 80%/–20%, Y5V, 25 V 0805
7
1
2
Panasonic
Panasonic
Panasonic
ECJ–2FF1E105Z
ECS–T1VD106R
ECJ–2VF1C224Z
C7
Capacitor, electrolytic, 10 µF, 35 V, SMD
D
C8,C9
Capacitor, ceramic, 0.22 µF, 80%/–20%, Y5V,
16V
0805
C12
Capacitor, ceramic, 220 pF, ±10%, X7R, 50 V
0805
805
1
2
2
Panasonic
Panasonic
Fair–Rite
ECU–V1H221KBN
ECJ–2VB1H102K
2512067007Y3
C14,C15
L1, L2
Capacitor, ceramic, 1000 pF, ±10%, X7R, 50 V
Ferrite Bead, 0.05 Ω, DCR, 70 Ω at 100 MHz,
3 A
1206
R1, R2, R3, R4
R5
Resistor, chip, 120 kΩ, 1/10 W, 5%
Resistor, chip, 0 Ω, 1/10W, 5%
Resistor, chip, 51 Ω, 1/10 W, 5%
Schottky diode, Vfm = 0.5 V at 1 A, Vr = 30 V
Header, 2 position, male
0805
805
4
1
2
2
2
Panasonic
Panasonic
Panasonic
ERJ–6GEYJ124V
ERJ–6GEY0R00V
ERJ–6GEYJ510V
R6, R7
0805
SMA
2mm
D1, D2
Diodes, Inc. B130–13
J1(GAIN0),
J2(GAIN1)
Norcomp
2163–36–01–P2
Shunts
2mm
2
Specialty
2JM–G
Electronics
S1 (SHUTDOWN) Switch, momentary pushbutton, 12 V, 50 mA
1
10
1
Panasonic
Sullins
TI
EVQ–PJS04K
PZC36SABN
PnP pins
U1
Headers, 0.1 inch centers, 1/2 inch long
TPA3001D1PWP
24-pin
TPA3001D1PWP
TSSOP
3-2
TPA3001D1EVM Schematic
3.2 TPA3001D1EVM Schematic
Figure 3–1. TPA3001D1EVM Schematic Diagram
R2
120 kΩ
R1
120 kΩ
U1
TPA3001D1
V
CC
C4
1 µF
1
24
23
22
21
20
19
18
C1
0.47 µF
INN
INP
IN–
IN+
V
C3
1 µF
CC
2
3
4
VREF
C2
0.47 µF
J1
C11
GAIN0
BYPASS
COSC
1 µF
C12
220 pF
GAIN1
R4
5
6
J2
SHUTDOWN
SHUTDOWN
PGND
ROSC
AGND
AGND
BSP
S1
120 kΩ
R3
120 kΩ
7
8
VCLAMP
BSN
R5
51 Ω
R6
51 Ω
C10
1 µF
17
16
15
14
13
9
V
PV
CC
PV
CC
V
CC
CC
10
11
12
C8
C9
0.22 µF
OUTN
OUTN
PGND
OUTP
OUTP
0.22 µF
C6
1 µF
C7
10 µF
C5
1 µF
PGND
PowerPAD
L2
L1
D2
(Ferrite (Ferrite
D1
Bead)
Bead)
C15
1 nF
C14
1 nF
Bill of Materials, Schematic, and PCB Layers
3-3
TPA3001D1EVM PCB Layers
3.3 TPA3001D1EVM PCB Layers
The following illustrations depict the TPA3001D1EVM PCB assembly and
layers. These drawings are not to scale.
Figure 3–2. TPA3001D1EVM Top Layer
Figure 3–3. TPA3001D1EVM Bottom Layer
3-4
|