TIDUFC9
May 2025
1
Description
Resources
Features
Applications
6
1
System Description
1.1
Key System Specifications
2
System Overview
2.1
Block Diagram
2.2
Design Considerations
2.2.1
Codec Design
2.2.2
Class-D Amplifier
2.2.2.1
Audio Filter Design
2.2.3
Power Design
2.2.4
EMC, EMI Design Considerations
2.3
Highlighted Products
2.3.1
TAC5312-Q1
2.3.2
TAS5441-Q1
2.3.3
LMR43620-Q1
2.3.4
TPS7A52-Q1
2.3.5
TPD2E007
3
Hardware, Testing Requirements, and Test Results
3.1
Hardware Requirements
3.1.1
Board Connection
3.1.2
Configuring the Board
3.2
Software Requirements
3.2.1
Firmware for Bench Tests
3.3
Test Setup
3.4
Test Results
3.4.1
Audio Performance
3.4.2
Power Tests
3.4.3
EMI, EMC Test Results
4
Design and Documentation Support
4.1
Design Files
4.1.1
Schematics
4.1.2
Bill of Materials
4.1.3
PCB Layout Recommendations
4.1.3.1
Layout Prints
4.1.4
Altium Project
4.1.5
Gerber Files
4.1.6
Assembly Drawings
4.2
Documentation Support
4.3
Support Resources
4.4
Trademarks
5
About the Author
3.3
Test Setup
Equipment:
Audio precision - APX555 and PSI
Power supply - 4.5V to 18V, 3A
4Ω load
Two multimeters
Bench test setup:
PVDD = 14.4V
4Ω load
CISPR 25 radiated emissions test setup:
PVDD = 14.4V
10W output across 4Ω load
CISPR 25 class 5 radiated emissions setup