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TPA0242 manual
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34
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34 pages, 189.15 Kb
March 2000
Mixed-Signal Products
User’s Guide
SLOU074
Contents
Main
Page
Preface
Related Documentation From Texas Instruments
TPA0242 Stereo 2-W Audio Power Amplifier
TI Plug-N-Play Audio Amplifier Evaluation Platform
FCC Warning
Page
Contents
Figures
Tables
Introduction
Introduction
1.1 Feature Highlights
Introduction
1.2 Description
hook up
Figure 11.The TI TPA0242 Audio Amplifier Evaluation Module
1.3 TPA0242 EVM Specifications
Page
Chapter 2
Quick Start
Table 21. Typical TI Plug-N-Play Platform Jumper and Switch Settings for the TPA0242
Table 22. Typical TPA0242 EVM Jumper Settings
Topic Page
Precautions
2.1 Precautions
Figure 21.Quick Start Platform Map
2.2 Quick Start List for Platform
OFF.
Mode
Hi.
Table 23. Platform Jumper and Switch Settings for the TPA0242
Figure 22.Module Preparation
Table 24. Typical TPA0242 EVM Jumper Settings
2.3 Quick Start List for Stand-Alone
Figure 23.Quick Start Module Map
OFF.
Page
Chapter 3
Details
Topic Page
Precautions
3.1 Precautions
Figure 31.The TI Plug-N-Play Audio Amplifier Evaluation Platform
3.2 The TPA0242 Audio Power Amplifier Evaluation Module
Figure 32.TPA0242 EVM
The TPA0242 Audio Power Amplifier Evaluation Module
3-4
Figure 33.TPA0242 EVM Schematic Diagram
3.2.1 TPA0242 Audio Amplifier IC
Figure 34.TPA0242 Amplifier IC
3.2.2 Inputs and Gain
line
headphone
HP
Table 31. TPA0242 EVM BTL Volume Settings
3.2.3 Differential Input
3.2.4 Depop Circuitry
3.2.5 BTL Operation
NOT
3.2.6 Single-Ended Operation
3.3 Using The TPA0242 EVM With the Plug-N-Play Evaluation Platform
3.3.1 Installing and Removing EVM Boards
3.3.1.1 EVM Insertion
3.3.1.2 EVM Removal
Using The TPA0242 EVM With the Plug-N-Play Evaluation Platform
3.3.2 TPA0242 Module Jumper Settings and Switches
means that a shunt is installed across the two pins of the jumper. Setting a jumper to
Figure 35.TPA0242 EVM Jumpers and Switches
3.3.2.1 S1 Shutdown Switch
3.3.2.2 S3 Output Mode Jumper
3.3.2.3 S3 Input Mode Jumper
3.3.2.4 S4 Input and Output Mode Jumper
3.3.3 Signal Routing
Figure 36.Platform Signal Routing and Outputs
only
U2 U4
3.3.4 Mute (Shutdown)/Mode
3.3.4.1 Headphone Jack Control Signals
Figure 37.Mute/Mode and Polarity Control
Page
3.3.5 Power Requirements
MUST NOT
3.3.6 Inputs and Outputs
3.3.6.1 Inputs
3.3.6.2 Outputs
Figure 38.Typical Headphone Plug
Using The TPA0242 EVM Stand-Alone
3.4 Using The TPA0242 EVM Stand-Alone
(Left)
3.4.1 TPA0242 EVM Connected for BTL Output
Figure 39.TPA0242 EVM Connected for Stereo BTL Output
(Right)
3.4.2 TPA0242 EVM Connected for Single-Ended Output
+
Figure 310. TPA0242 EVM Connected for Stereo Single-Ended Output
33 F 1000 F
+
3.5 TPA0242 Audio Power Amplifier Evaluation Module Parts List
Table 34.TPA0242 EVM Parts List
