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APA100 manual
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APA100
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Parts list
EVM Basic Function/Block Diagram
Data Sheets
Reset Button/Mute
Signal-to-NoiseRatio SNR
Phase Margin + 180 Phase at Fc
4.4 TLV2464A Gain Setting and Feedback
How to
Audio Power Amplifiers
Features
Page 18
Image 18
2-8
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Page 19
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Image 18
Page 17
Page 19
Contents
APA100
Audio Power Amplifiers
User’s Guide
August
IMPORTANT NOTICE
Products
Applications
About This Manual
How to Use This Manual
Read This First
Information About Cautions and Warnings
Data Sheets
Related Documentation From Texas Instruments
FCC Warning
This is an example of a warning statement
Contents
Figures
Tables
Page
EVM Overview
Chapter
Topic
1.1 Features
1.2 Power Requirements
1.2.1Supply Voltage
1.3 EVM Basic Function/Block Diagram
EVM Basic Function/Block Diagram
EVM Overview
Integrator
EVM Basic Function/Block Diagram
Feedback
TLV2464
Chapter
PCB Design
Schematic
Page
2.1 PCB Layout
2.1.1Split Ground Plane
2.1.2H-BridgeLayout
2.1.3Analog Section Layout
Figure 2−2. APA100 Split Plane Bottom Layout
2.1.4PCB Layers
Figure 2−3. Top Copper and Silkscreen
PCB Layout
Figure 2−4. Bottom Copper and Silkscreen
Figure 2−5. Drill Drawing
PCB Design
2.2 Bill of Materials
Table 2−1. Parts List
Bill of Materials
2.3 Schematic
Schematic
PCB Design
Page
Page
EVM Operation
Chapter
Topic
3.1 Quick Start
Figure 3−1. Quick Start Module Map
3.4 Error Signals
3.2 Power−Up/Down Sequence
3.3 Reset Button/Mute
Table 3−1. TAS5111 Error Decoding
3.5 Changing the Gain
Page
Technical Information
Chapter
Topic
4.1 Feedback System Design
Figure 4−1. APA100 Block Diagram
Phase Margin + 180 Phase at Fc
Figure 4−4. APA100 Integrator Design
Closed−loop gain +
1.5 0 C10 V1 1 0
4.2 TPA2001D1 Class-DModulator
Ch1: 3V/Div Ch2: 3V/Div Ch3: 3V/Div Ch4: 1V/Div
Figure 4−7. TPA2001D1 Block Diagram
TPA2001D1 Class-DModulator
t − Time −
4.4 TLV2464A Gain Setting and Feedback
4.3 TAS5111 H-Bridge
4.5 LC Filter
Figure 4−9. APA100 Output Filter
4.6 Thermal
Table 4−1. TAS5111 Thermal Table
As an indication of the importance of keeping the thermal grease layer thin, if the thermal grease layer increases to 0.002 inch thick, the required heatsink thermal resistance changes to 2.4C/W
Page
Measured Results
Chapter
Topic
5.1 Total Harmonic Distortion + Noise
Total Harmonic Distortion + Noise
Total Harmonic Distortion + Noise
Measured Results
5.2 Output Power
Output Power
5.3 Efficiency
Efficiency
Measured Results
5.4 Gain and Phase Response
5.5 Signal-to-NoiseRatio SNR
Gain and Phase Response
5.6 Supply Ripple Rejection
Supply Ripple Rejection
Measured Results