Texas Instruments Stereo Amplifier TPA3001D1EVM User Manual

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User’s Guide  
December 2002  
HPL  
SLOU156  
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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 Users 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 users 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 Users Guide and, specifically, the EVM Warnings and Restrictions notice in the EVM  
Users 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  
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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 Users 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 Users 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  
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Preface  
Read This First  
About This Manual  
This users guide describes the characteristics, operation, and use of the  
TPA3001D1EVM. The users 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 1Introduction  
- Chapter 2Quick Start  
- Chapter 3Bill of Materials, Schematic, and PCB Layers  
Trademarks  
PowerPAD is a trademark of Texas Instruments.  
v
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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  
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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  
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Figures  
11  
12  
21  
31  
32  
33  
The TI TPA3001D1 Audio Power Amplifier EVMTop View . . . . . . . . . . . . . . . . . . . . . . . . 1-2  
The TI TPA3001D1 Audio Power Amplifier EVMBottom 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  
21  
22  
23  
24  
25  
31  
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  
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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  
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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 11 and Figure 12).  
Figure 11. The TI TPA3001D1 Audio Power Amplifier EVMTop View  
Figure 12. The TI TPA3001D1 Audio Power Amplifier EVMBottom 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  
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TPA3001D1EVM Specifications  
The platform, which has room for a single TPA3001D1EVM, is a convenient  
vehicle for demonstrating TIs 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 , 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-load.  
Introduction  
1-3  
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1-4  
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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  
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Configuration  
2.1 Configuration  
The platform switch and jumper settings shown in Table 21 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 21).  
Table 21.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 = Dont 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 22.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  
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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 users 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 23.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 = Dont 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  
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Quick Start List for the Platform  
Figure 21. 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  
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Quick Start List for Stand-Alone Operation  
Evaluation Module Preparations  
12) Use jumpers GAIN0 and GAIN1 to set the gain (Table 24).  
Table 24.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 INpins, 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 OUTpins, taking care to  
observe marked polarity.  
Quick Start  
2-5  
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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 25.  
Table 25.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 120kpullup 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  
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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  
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TPA3001D1EVM Bill of Materials  
3.1 TPA3001D1EVM Bill of Materials  
Table 31.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  
ECJ2VF1C474Z  
C3C6, C10, C11  
Capacitor, ceramic, 1 µF, 80%/20%, Y5V, 25 V 0805  
7
1
2
Panasonic  
Panasonic  
Panasonic  
ECJ2FF1E105Z  
ECST1VD106R  
ECJ2VF1C224Z  
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  
FairRite  
ECUV1H221KBN  
ECJ2VB1H102K  
2512067007Y3  
C14,C15  
L1, L2  
Capacitor, ceramic, 1000 pF, ±10%, X7R, 50 V  
Ferrite Bead, 0.05 , DCR, 70 at 100 MHz,  
3 A  
1206  
R1, R2, R3, R4  
R5  
Resistor, chip, 120 k, 1/10 W, 5%  
Resistor, chip, 0 , 1/10W, 5%  
Resistor, chip, 51 , 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  
ERJ6GEYJ124V  
ERJ6GEY0R00V  
ERJ6GEYJ510V  
R6, R7  
0805  
SMA  
2mm  
D1, D2  
Diodes, Inc. B13013  
J1(GAIN0),  
J2(GAIN1)  
Norcomp  
21633601P2  
Shunts  
2mm  
2
Specialty  
2JMG  
Electronics  
S1 (SHUTDOWN) Switch, momentary pushbutton, 12 V, 50 mA  
1
10  
1
Panasonic  
Sullins  
TI  
EVQPJS04K  
PZC36SABN  
PnP pins  
U1  
Headers, 0.1 inch centers, 1/2 inch long  
TPA3001D1PWP  
24-pin  
TPA3001D1PWP  
TSSOP  
3-2  
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TPA3001D1EVM Schematic  
3.2 TPA3001D1EVM Schematic  
Figure 31. 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  
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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 32. TPA3001D1EVM Top Layer  
Figure 33. TPA3001D1EVM Bottom Layer  
3-4  
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