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User's Guide 

 

                              TPA3123D2 2.1 AUDIO POWER AMPLIFIER DEMO BOARD 
 

 

Contents 

 

          Introduction

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Introduction 

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2

 

Operation

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3

 

TPA3123D2 2.1 Demo EVM Schematic

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4

 

TPA3123D2 2.1 Demo EVM PCB Layers

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TPA3123D2 2.1 Demo Evaluation Module Parts List

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List of Tables  

TPA3123D2 2.1 Demo EVM Specifications

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Gain Settings

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TPA3123D2 2.1 Demo EVM Bill of Materials

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        List of Figures 

 

TPA3122D2 2.1 Audio Power Amplifier EVM Top View

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TPA3122D2 2.1 Audio Power Amplifier EVM Bottom View

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3

 

TPA3122D2 2.1 EVM Schematic

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TPA3122D2 2.1 EVM Top Side Layout

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TPA3122D2 2.1 EVM Bottom Side Layout

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Frequency Response (Stereo Output)

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THD +N Ratio vs. Frequency (Stereo Output)

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THD +N Ratio vs. Power (Stereo Output)

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Frequency Response (Subwoofer Output)

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THD +N Ratio vs. Frequency (Subwoofer Output)

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8

 

THD +N Ratio vs. Power (Subwoofer Output)

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9

 

 

 

 

 

 

 

 

 

 

 

Summary of Contents for TPA3123D2

Page 1: ...PA3123D2 2 1 Demo EVM Bill of Materials 10 List of Figures TPA3122D2 2 1 Audio Power Amplifier EVM Top View 2 TPA3122D2 2 1 Audio Power Amplifier EVM Bottom View 3 TPA3122D2 2 1 EVM Schematic 4 TPA312...

Page 2: ...he treble speakers and another TPA3123D2 is configured as a mono amplifier driving the subwoofer speaker TABLE1 TPA3123D2 2 1 Demo EVM s Specifications Value UNIT VCC 10 to 30 V ICC 4 A Stereo PO Cont...

Page 3: ...ower supply adjusted from 10 V to 30 V to the module VCC J10 and GND J9 banana jacks taking care to observe marked polarity 2 1 2 Evaluation Module Preparations INPUTS AND OUTPUTS 1 Connect an audio s...

Page 4: ...VCC compliant Holding down switch S4 places the amplifier 2 in the MUTE state Releasing S4 returns the amplifier 2 to the active state which is meant for the Subwoofer output GAIN0 GAIN1 Together thes...

Page 5: ...5 Figure 4 TPA3123D2 2 1 TOP SIDE LAYOUT Figure 5 TPA3123D2 2 1 BOTTOM SIDE LAYOUT...

Page 6: ...0 100 200 500 1k 2k 5k 10k Hz Figure 7 THD vs Frequency THDvs Freq Stereo Output TPA3123D2 THDvsFreqstereo output at2 Color Sweep Trace Line Style Thick Data Axis Comment 1 1 Red Solid 1 Anlr THD N Ra...

Page 7: ...k Data Axis Comment 1 1 Cyan Solid 1 Anlr THD N Ratio Left Freq 1KHz 1 3 Yellow Solid 1 Anlr THD N Ratio Left Freq 1KHz 2 1 Green Solid 1 Anlr THD N Ratio Left Freq 10KHz 2 3 Red Solid 1 Anlr THD N Ra...

Page 8: ...e r f o r m a n c e 0 4 0 2 4 6 8 1 0 1 2 1 4 1 6 1 8 2 0 2 2 2 4 2 6 2 8 3 0 3 2 3 4 3 6 3 8 d B m 2 0 2 0 k 5 0 1 0 0 2 0 0 5 0 0 1 k 2 k 5 k 1 0 k H z Figure 10 THD vs Frequency THDvs Freq subwoofe...

Page 9: ...ep Trace Line Style Thick Data Axis Com ment 1 1 Magenta Solid 2 Anlr THD N Ratio Left Freq 100Hz 2 1 Blue Solid 2 Anlr THD N Ratio Left Freq 200Hz VDD 24V RLOAD 8 OHMS Sub Woofer Perform ance 0 01 10...

Page 10: ...10 TABLE 3 TPA3123D2 2 1 EVM BOM Bill of materials...

Page 11: ...11 Contd...

Page 12: ...12...

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