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User's Guide
SLOU276A–December 2009–Revised May 2010
TAS5616PHD2EVM
This user’s guide describes the operation of the evaluation module for the TAS5616 Digital Amplifier
Power Output Stage using TAS5508 Digital Audio PWM Processor from Texas Instruments. The user’s
guide also provides measurement data and design information like schematic, BOM, and PCB layout.
Contents
1 Introduction .................................................................................................................. 3
1.1 TAS5616PHD2EVM Features .................................................................................... 4
1.2 PCB Key Map ...................................................................................................... 5
2 Quick Setup Guide .......................................................................................................... 5
2.1 Electrostatic Discharge Warning ................................................................................. 5
2.2 Unpacking the EVM ................................................................................................ 6
2.3 Power Supply Setup ............................................................................................... 6
2.4 Speaker Connection ............................................................................................... 6
2.5 Output Configuration BTL and PBTL ............................................................................ 6
2.6 GUI Software Installation .......................................................................................... 7
3 Protection .................................................................................................................... 8
3.1 Short Circuit Protection and Fault Reporting Circuitry ........................................................ 8
3.2 Fault Reporting ..................................................................................................... 8
4 TAS5616PHD2EVM Performance ........................................................................................ 9
4.1 THD+N vs. Power (BTL – 8Ω) .................................................................................. 10
4.2 THD+N vs Power (PBTL – 4 Ω) ................................................................................ 11
4.3 THD+N vs. Frequency (BTL – 8Ω) ............................................................................. 11
4.4 THD+N vs. Frequency (PBTL – 4Ω) ........................................................................... 12
4.5 FFT Spectrum with –60 dBFS Tone (BTL) .................................................................... 12
4.6 FFT Spectrum with -60 dBFS Tone (PBTL) .................................................................. 12
4.7 Idle Noise FFT Spectrum (BTL) ................................................................................ 13
4.8 Idle Noise FFT Spectrum (PBTL) .............................................................................. 13
4.9 Channel Separation .............................................................................................. 14
4.10 Frequency Response (BTL) ..................................................................................... 15
4.11 Frequency Response (PBTL) ................................................................................... 15
4.12 High Current Protection (BTL) .................................................................................. 16
4.13 High Current Protection (PBTL) ................................................................................ 16
4.14 Pop/Click (BTL) ................................................................................................... 17
4.15 Pop/Click (PBTL) ................................................................................................. 18
4.16 Output Stage Efficiency .......................................................................................... 19
5 Related Documentation from Texas Instruments ..................................................................... 20
5.1 Additional Documentation ....................................................................................... 20
Appendix A Design Documents ............................................................................................... 20
List of Figures
1 Integrated PurePath Digital™ Amplifier System ........................................................................ 4
2 Physical Structure for the TAS5616PHD2EVM (Approximate Layout) .............................................. 5
3 PBTL Mode Configuration ................................................................................................. 7
4 TAS5508 GUI Window ..................................................................................................... 8
PurePath, Equibit are trademarks of Texas Instruments.
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C is a trademark of NXP B.V. Corp Netherlands.
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SLOU276A–December 2009–Revised May 2010 TAS5616PHD2EVM
Copyright © 2009–2010, Texas Instruments Incorporated
