Texas Instruments TPA3123D2 User Manual
User's Guide
SLOU208 – August 2007
TPA3123D2 Audio Power Amplifier EVM
Contents
1 Introduction ................................................................................................................... 2
2 Operation ..................................................................................................................... 4
3 TPA3123D2 EVM Schematic............................................................................................... 5
4 TPA3123D2 EVM PCB Layers ............................................................................................. 6
5 TPA3123D2 Evaluation Module Parts List ............................................................................... 8
List of Figures
1 TPA3123D2 Audio Power Amplifier EVM (Top View) ................................................................... 2
2 TPA3123D2 Audio Power Amplifier EVM (Bottom View) ............................................................... 3
3 TPA3123D2 EVM Schematic............................................................................................... 5
4 Top Side Layout.............................................................................................................. 6
5 Bottom Side Layout .......................................................................................................... 7
List of Tables
1 TPA3123D2 EVM Specifications .......................................................................................... 2
2 Gain Settings ................................................................................................................. 4
3 TPA3123D2 EVM Bill of Materials ......................................................................................... 8
SLOU208 – August 2007 TPA3123D2 Audio Power Amplifier EVM 1
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Introduction
1 Introduction
The TPA3123D2 evaluation module consists of a single 25-W, class-D, stereo audio power amplifier
complete with a small number of external components mounted on a circuit board that are used to directly
drive speakers with an external analog audio source as the input.
Table 1. TPA3123D2 EVM Specifications
VALUE UNIT
V
CC
I
CC
P
O
Z
L
Supply voltage range 10 to 30 V
Supply current, maximum 2 A
Continuous output power, PO: 4 Ω , V
Minimum load impedance 3.2 Ω
= 27 V, THD+N = 10% 24 W
CC
Figure 1. TPA3123D2 Audio Power Amplifier EVM (Top View)
2 TPA3123D2 Audio Power Amplifier EVM SLOU208 – August 2007
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Introduction
Figure 2. TPA3123D2 Audio Power Amplifier EVM (Bottom View)
SLOU208 – August 2007 TPA3123D2 Audio Power Amplifier EVM 3
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