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User's Guide

SLOU189A – March 2007 – Revised April 2007

TPA3120D2 Audio Power Amplifier EVM

Contents

1

Introduction

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2

2

Operation

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3

3

TPA3120D2 EVM Schematic

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4

4

TPA3120D2 EVM PCB Layers

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5

5

TPA3120D2 Evaluation Module Parts List

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7

List of Figures

1

TPA3120D2 Audio Power Amplifier EVM

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2

2

TPA3120D2 EVM Schematic

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4

3

Top Side Layout

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5

4

Bottom Side Layout

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6

List of Tables

1

TPA3120D2 EVM Specifications

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2

2

Gain Settings

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3

3

TPA3120D2 EVM Bill of Materials

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7

SLOU189A – March 2007 – Revised April 2007

TPA3120D2 Audio Power Amplifier EVM

1

Submit Documentation Feedback

Summary of Contents for TPA3120D2

Page 1: ...s 5 5 TPA3120D2 Evaluation Module Parts List 7 List of Figures 1 TPA3120D2 Audio Power Amplifier EVM 2 2 TPA3120D2 EVM Schematic 4 3 Top Side Layout 5 4 Bottom Side Layout 6 List of Tables 1 TPA3120D2 EVM Specifications 2 2 Gain Settings 3 3 TPA3120D2 EVM Bill of Materials 7 SLOU189A March 2007 Revised April 2007 TPA3120D2 Audio Power Amplifier EVM 1 Submit Documentation Feedback ...

Page 2: ...to directly drive speakers with an external analog audio source as the input Table 1 TPA3120D2 EVM Specifications VALUE UNIT VCC Supply voltage range 10 to 30 V ICC Supply current maximum 2 A PO Continuous output power PO 4 Ω VCC 27 V THD N 10 24 W ZL Minimum load impedance 3 2 Ω Figure 1 TPA3120D2 Audio Power Amplifier EVM TPA3120D2 Audio Power Amplifier EVM 2 SLOU189A March 2007 Revised April 20...

Page 3: ... switching with fifty percent duty cycle SW2 on the EVM controls the state of the MUTE terminal Holding down switch SW2 places the amplifier in the MUTE state Releasing SW2 returns the amplifier to the active state This terminal is VCC compliant 3 GAIN0 GAIN1 Together these terminals determine the gain of the amplifier See Table 2 Installing a jumper in J1 or J2 sets the respective terminal to GND...

Page 4: ...1 0uF C16 1 0uF R1 10K R1 10K C15 0 22uF C15 0 22uF R13 150K R13 150K TP7 RIGHT_OUT TP7 RIGHT_OUT J5 ROUT J5 ROUT J1 GAIN0 J1 GAIN0 1 2 C17 470uF C17 470uF 1 2 C3 1 0uF C3 1 0uF R15 open 1M R15 open 1M J3 LOUT J3 LOUT TP11 LGND TP11 LGND TP1 LEFT_IN TP1 LEFT_IN C19 0 68uF C19 0 68uF R2 10K R2 10K C E B Q4 MMBT3904 C E B Q4 MMBT3904 1 2 3 C2 470uF C2 470uF 1 2 J6 ROUT J6 ROUT R10 0 R10 0 C11 open 1...

Page 5: ...CB Layers TPA3120D2 EVM PCB Layers The following illustrations depict the TPA3120D2 EVM PCB layers Figure 3 Top Side Layout SLOU189A March 2007 Revised April 2007 TPA3120D2 Audio Power Amplifier EVM 5 Submit Documentation Feedback ...

Page 6: ...www ti com TPA3120D2 EVM PCB Layers Figure 4 Bottom Side Layout TPA3120D2 Audio Power Amplifier EVM 6 SLOU189A March 2007 Revised April 2007 Submit Documentation Feedback ...

Page 7: ...ition Male 2mm 2 Norcomp 2163 36 01 P2 JP9 JP10 SHUNT 2MM 2mm 2 Specialty 2JM G shunts SWITCH MOMENTARY SMD LOW SW1 SW2 2 Panasonic EVQ PPBA25 PROFILE Standoffs 5 8 length 4 40 thread 4 Keystone 1808 Screws 4 40 375 4 24 pin U1 TPA3120D2PWP 1 TI TPA3120D2PWP TSSOP The following parts comprise the power off depop circuit which is enabled by installing J11 Capacitor ceramic 10 pf 10 C0G C11 C21 0603...

Page 8: ...t 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 or services might be or are used FCC Warning This evaluation...

Page 9: ...siness 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 necess...

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