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Introduction

1.1

Description

1.2

TPA6047A4EVM Specifications

User's Guide

SLOU240 – August 2007

TPA6047A4 Audio Power Amplifier Evaluation Module

Contents

1

Introduction

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1

2

Operation

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2

3

Schematic and Bill of Materials

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4

List of Figures

1

EVM Schematic

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2

Top Side Layout

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3

Bottom Side Layout

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6

List of Tables

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Gain Settings

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3

The TPA6047A4 evaluation module (EVM) consists of a single 2-W stereo speaker amplifier and 100-mW
DirectPath™ headphone amplifier complete with a small number of external components mounted on a
circuit board that can be used to drive speakers and headphones directly with external analog audio
sources as inputs. The TPA6047A4 also contains an LDO capable of outputting 4.75 V with a load of 120
mA.

Supply voltage range, VDD

4.5 V to 5.5 V

Supply current, IDD

1 A, maximum

Speaker amplifier output power per channel, P

O

: 4

, VDD = 5 V, THD+N=1%

2 W

Headphone output power per channel, P

O

: 16

, VDD = 5 V, THD+N=10%

100 mW

DirectPath is a trademark of Texas Instruments.

SLOU240 – August 2007

TPA6047A4 Audio Power Amplifier Evaluation Module

1

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Summary of Contents for TPA6047A4

Page 1: ...eadphone amplifier complete with a small number of external components mounted on a circuit board that can be used to drive speakers and headphones directly with external analog audio sources as inputs The TPA6047A4 also contains an LDO capable of outputting 4 75 V with a load of 120 mA Supply voltage range VDD 4 5 V to 5 5 V Supply current IDD 1 A maximum Speaker amplifier output power per channe...

Page 2: ...ating source like a portable CD install jumpers JP1 and JP2 After setting the JP1 and JP2 jumpers appropriately connect the input source to either the speaker inputs SPKR_LIN SPKR_RIN or the headphone inputs HP_INL HP_INR or both 2 Connect a speaker across LOUT and LOUT Connect another speaker across ROUT and ROUT 3 Install both gain jumpers GAIN0 and GAIN1 at position 0 This sets the gain of the ...

Page 3: ...r INSTALLED 1 Verify correct voltage and input polarity and turn on the external power supplies The EVM should begin operation 2 Adjust the input signal 3 Adjust the control inputs to the desired settings 4 Adjust the amplifier gain by installing removing the gain jumpers GAIN0 and GAIN1 SLOU240 August 2007 List of Tables 3 Submit Documentation Feedback ...

Page 4: ...N SPKR_EN 3 2 1 REG_EN 3 2 1 HP_INL 3 2 1 1 2 3 HP_INR 3 2 1 1 2 3 ROUT ROUT LOUT LOUT R1 R2 HPR HPL TPA6047A4RHB U1 1 2 3 4 17 10 11 12 9 5 6 7 25 26 27 28 32 31 30 29 8 13 14 15 16 18 19 20 21 22 23 24 LINE IN HEADPHONE IN RCA Red RCA Black RCA Black RCA Red 3 5mm STEREO Mini HEADPHONE OUT RIGHT SPEAKER OUT LEFT SPEAKER OUT 0805 0805 0805 DNP DNP POWER INPUTS 4 5 5 5V BOM ONLY HP_EN GAIN0 REG_EN...

Page 5: ...R_LIN HPL HPR HPVDD C14 C12 C13 C15 GND U1 C8 C6 GAIN1 HP_EN C4 HP_INL HP_INR VDD C7 C2 HP_OUT 1 0 C11 C10 1 1 0 C5 0 1 SPKR_EN C3 0 C1 C9 REG_EN JP1 JP2 www ti com Schematic and Bill of Materials Figure 2 Top Side Layout SLOU240 August 2007 List of Tables 5 Submit Documentation Feedback ...

Page 6: ...TPA6047A4RHB EVM R2 R1 Schematic and Bill of Materials www ti com Figure 3 Bottom Side Layout List of Tables 6 SLOU240 August 2007 Submit Documentation Feedback ...

Page 7: ... 806 STX 3000 HP_INL Jack RCA 3 pin PCB RA black 2 Switchcraft PJRAN1X1U01X Newark 65K7770 SPKR_LIN HP_INR Jack RCA 3 pin PCB RA red 2 Switchcraft PJRAN1X1U03X Newark 89K7617 SPKR_RIN Keystone HPL HPR PC testpoint white 2 5002 Digi Key 5002K Electronics LOUT LOUTM Emerson Binding post 15 A uninsulated 4 111 2223 001 Digi Key J587 ROUT ROUTM NPCS Keystone GND Binding post black 15 A econo 1 7007 Di...

Page 8: ...duct This notice contains important safety information about temperatures and voltages For additional information on TI s environmental and or safety programs please contact the TI application engineer or visit www ti com esh 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 o...

Page 9: ...usiness practice TI is not responsible or liable for any such statements TI products are not authorized for use in safety critical applications such as life support where a failure of the TI product would reasonably be expected to cause severe personal injury or death unless officers of the parties have executed an agreement specifically governing such use Buyers represent that they have all neces...

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