Texas Instruments Stereo Amplifier TAS5518 User Manual

TAS5518-5152K8EVM  
Evaluation Module for TAS5518 Digital Audio PWM  
Processor and TAS5152 Digital Amplifier Power-Output  
Stage  
User's Guide  
June 2006  
Digital Audio & Video Products  
SLEU074  
 
Contents  
Preface ............................................................................................................................... 5  
1
Overview ................................................................................................................... 7  
1.1  
TAS5518-5152K8EVM Features.................................................................................. 8  
PCB Key Map ....................................................................................................... 9  
1.2  
2
System Interfaces ..................................................................................................... 11  
2.1  
2.2  
2.3  
2.4  
2.5  
2.6  
Power Supply (PSU) Interface (J901 and J900) .............................................................. 12  
PSU Control Interface (J902) .................................................................................... 13  
Loudspeaker Connectors (J101–J107)......................................................................... 14  
Headphone Connector (J700) ................................................................................... 15  
Control Interface (J40)............................................................................................ 15  
Digital Audio Interface (J60) ..................................................................................... 16  
3
Protection ................................................................................................................ 17  
3.1  
Short-Circuit Protection and Fault-Reporting Circuitry ....................................................... 18  
Fault Reporting .................................................................................................... 18  
3.2  
Important Notices............................................................................................................... 19  
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List of Figures  
1-1  
1-2  
2-1  
2-2  
2-3  
2-4  
2-5  
Integrated PurePath Digital™ Amplifier System ......................................................................... 8  
Physical Structure for TAS5518-5152K8EVM (Rough Outline) ....................................................... 9  
Recommended Power-Up Sequence.................................................................................... 12  
J901 and J900 Pin Numbers ............................................................................................. 12  
J902 Pin Numbers ......................................................................................................... 13  
J101–J107 Pin Numbers .................................................................................................. 14  
J700 Pin Numbers ......................................................................................................... 15  
List of Tables  
1
Related Documentation From TI........................................................................................... 6  
Recommended Supply Voltages ......................................................................................... 12  
J901 Pin Description....................................................................................................... 12  
J900 Pin Description....................................................................................................... 13  
J902 Pin Description....................................................................................................... 13  
J101–J107 Pin Description................................................................................................ 14  
J700 Pin Description....................................................................................................... 15  
J40 Pin Description ........................................................................................................ 15  
J60 Pin Description ........................................................................................................ 16  
TAS5152 Warning/Error Signal Decoding .............................................................................. 18  
2-1  
2-2  
2-3  
2-4  
2-5  
2-6  
2-7  
2-8  
3-1  
4
List of Figures  
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Preface  
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About This Manual  
This manual describes the operation of the TAS5518-5152K8EVM evaluation module (EVM) from Texas  
Instruments (TI).  
How to Use This Manual  
This document contains the following chapters:  
Chapter 1 - Overview  
Chapter 2 - System Interfaces  
Chapter 3 - Protection  
Information About Cautions and Warnings  
This manual may contain cautions and warnings.  
CAUTION  
This is an example of a caution statement.  
A caution statement describes a situation that could potentially damage your  
software or equipment.  
WARNING  
This is an example of a warning statement.  
A warning statement describes a situation that could potentially  
cause harm to you.  
The information in a caution or a warning is provided for your protection. Please read each caution and  
warning carefully.  
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Related Documentation From TI  
Related Documentation From TI  
Table 1 contains a list of data manuals that have detailed descriptions of the integrated circuits used in the  
design of TAS5518-5152K8EVM. The data manuals can be obtained at http://www.ti.com.  
Table 1. Related Documentation From TI  
PART NUMBER  
TAS5518  
LITERATURE NUMBER  
SLES115  
TAS5152  
SLES127  
TPA112  
SLOS212  
TPS3801K33  
LM317M  
SLVS219  
SLVS297  
TPS76733  
SLVS208  
Additional Documentation  
q TAS5518-5152K8EVM Application Report (SLEA061)  
q PC Configuration Tool for TAS5518 (TAS5518 GUI Ver. 4.0 or later)  
q General application notes  
Trademarks  
PurePath Digital, Equibit, PowerPAD are trademarks of Texas Instruments.  
6
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Chapter 1  
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Overview  
The TAS5518-5152K8EVM PurePath Digital™ customer evaluation amplifier module  
demonstrates two audio integrated circuits, TAS5518 and TAS5152, from Texas  
Instruments (TI).  
The TAS5518PAG is a high-performance 32-bit (24-bit input) multichannel PurePath  
Digital pulse-width modulator (PWM) based on Equibit™ technology, with a fully  
symmetrical AD modulation scheme. It accepts input sample rates from 32 kHz to  
192 kHz. The device also has digital audio processing (DAP) that provides 48-bit signal  
processing, advanced performance, and a high level of system integration. The device  
has interfaces for headphone output and power supply volume control (PSVC).  
The TAS5152DKD is a compact, high-power, digital amplifier power stage designed to  
drive a 4-loudspeaker up to 125 W (10% THD+N). It contains integrated gate drivers,  
four matched and electrically isolated enhancement-mode N-channel power DMOS  
transistors, and protection/fault-reporting circuitry.  
The DKD PowerPAD™ package top side allows heat transfer through a heatsink. The  
heatsink in this design is for evaluation purposes only.  
This EVM, together with a TI input-USB board, is a complete 7-channel digital audio  
amplifier system that includes digital input (S/PDIF), analog inputs, interface to PC, and  
DAP features, such as digital volume control, input and output mixers, auto mute,  
equalization, tone controls, loudness, dynamic range compression, and PSVC output.  
There are configuration options for stereo line level output, stereo headphone output,  
and power-stage failure protection.  
This 6.1 system is designed for home-theater applications, such as A/V receivers, DVD  
minicomponent systems, home theater in a box (HTIB), DVD receivers, or plasma  
display panels (PDPs).  
Topic .................................................................................................. Page  
1.1  
TAS5518-5152K8EVM Features..................................................... 8  
1.2 PCB Key Map ............................................................................. 9  
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Overview  
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TAS5518-5152K8EVM Features  
1.1 TAS5518-5152K8EVM Features  
Stereo-channel line output  
Stereo headphone output  
Self-contained protection system (short circuit and thermal)  
Standard inter-IC sound (I2S) and inter-integrated circuit (I2C)/control connector for TI input board  
Double-sided plated-through printed circuit board (PCB) layout  
2-Channel  
Headphone Output  
TAS5518-5152K8EVM  
Module  
7-/8-Channel Speaker Output  
6-Channel  
Analog  
Input  
Control Interface  
USB  
Interface  
I2C Bus  
I2C Bus  
Optical  
and  
Coaxial  
S/PDIF Input  
Example  
TI Input-USB  
Board  
Power Supply  
Figure 1-1. Integrated PurePath Digital™ Amplifier System  
8
Overview  
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PCB Key Map  
1.2 PCB Key Map  
Physical structure for the TAS5518-5152K8EVM is shown in Figure 1-2.  
PSU  
CONTROL  
(J902)  
PSU  
INTERFACE  
(J900)  
J108  
J105  
J107  
J106  
J104  
J102  
J103  
J101  
SPEAKER OUTPUTS  
SPEAKER OUTPUTS  
TAS5518  
HEADPHONE  
OUTPUT  
(J700)  
3.3V  
Regulator  
CONTROL  
INTERFACE (J40)  
INPUT SIGNAL  
INTERFACE (J60)  
Figure 1-2. Physical Structure for TAS5518-5152K8EVM (Rough Outline)  
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PCB Key Map  
10  
Overview  
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Chapter 2  
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System Interfaces  
This chapter describes the TAS5518-5152K8EVM board, with regard to power supplies  
and system interfaces.  
Topic .................................................................................................. Page  
2.1  
2.2  
2.3  
2.4  
Power Supply (PSU) Interface (J901 and J900) ............................. 12  
PSU Control Interface (J902) ...................................................... 13  
Loudspeaker Connectors (J101–J107) ......................................... 14  
Headphone Connector (J700) ..................................................... 15  
2.5 Control Interface (J40) ............................................................... 15  
Digital Audio Interface (J60) ....................................................... 16  
2.6  
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System Interfaces  
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Power Supply (PSU) Interface (J901 and J900)  
2.1 Power Supply (PSU) Interface (J901 and J900)  
The TAS5518-5152K8EVM module must be powered from external power supplies. High-end audio  
performance requires a stabilized power supply, with low ripple voltage and low output impedance.  
Note: The length of power-supply cable must be minimized. Increasing the length of PSU cable  
is equal to increasing the distortion for the amplifier at high output levels and low  
frequencies.  
Maximum output-stage supply voltage depends of the speaker load resistance. Check the recommended  
maximum supply voltage in the TAS5152 data sheet.  
Table 2-1. Recommended Supply Voltages  
VOLTAGE LIMITATIONS  
CURRENT  
RECOMMENDATIONS  
DESCRIPTION  
(4-LOAD)  
System power supply  
15 V to 20 V  
0 V to 35 V  
0.3 A  
6 A(1)  
Output-stage power supply  
(1)  
The rated current corresponds to two-channel full scale (80 W each), which is adequate for a  
standard eight-channel amplifier design.  
The recommended TAS5152 power-up sequence is shown in Figure 2-1 . For proper TAS5152 operation,  
the RESET signal should be kept low during power up. RESET is pulled low during power up for 200 ms  
by the onboard reset generator (U73).  
System Power Supply  
Output-Stage Power Supply  
RESET  
>1 ms  
Figure 2-1. Recommended Power-Up Sequence  
PCB Connector  
(Top View)  
4
3
2
1
Figure 2-2. J901 and J900 Pin Numbers  
Table 2-2. J901 Pin Description  
PIN  
NO.  
NET NAME  
AT SCHEMATICS  
DESCRIPTION  
1
2
3
4
PVDD  
SYSTEM  
GND  
Output-stage power supply  
System power supply  
Ground  
GND  
Ground  
12  
System Interfaces  
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PSU Control Interface (J902)  
Table 2-3. J900 Pin Description(1)  
PIN  
NO.  
NET NAME  
DESCRIPTION  
AT SCHEMATICS  
1
2
3
4
PVDD  
PVDD  
GND  
Extra output-stage power supply  
Extras output-state power supply  
Extra ground  
GND  
Extra ground  
(1)  
Optional – Use to decrease impedance to reach better performance  
2.2 PSU Control Interface (J902)  
This interface is used for onboard sensing of output supply voltage and for the power supply volume  
control (PSVC) signal.  
PCB Connector  
(Top View)  
5
4
3
2
1
Figure 2-3. J902 Pin Numbers  
Table 2-4. J902 Pin Description  
PIN  
NO.  
NET NAME  
AT SCHEMATICS  
DESCRIPTION  
1
2
3
4
5
Reserved for future use  
Sense of output power supply  
Ground  
PVDD  
GND  
RESET  
PSVC  
System reset (bidirectional)  
Power supply volume control  
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Loudspeaker Connectors (J101–J107)  
2.3 Loudspeaker Connectors (J101–J107)  
CAUTION  
Both positive and negative speaker outputs are floating and may not be  
connected to ground (e.g., through an oscilloscope).  
PCB Connector  
(Top View)  
2
1
Figure 2-4. J101–J107 Pin Numbers  
Table 2-5. J101–J107 Pin Description  
PIN  
NO.  
NET NAME  
AT SCHEMATICS  
DESCRIPTION  
1
2
OUT-1  
OUT-2  
Speaker negative output  
Speaker positive output  
14  
System Interfaces  
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Headphone Connector (J700)  
2.4 Headphone Connector (J700)  
PCB Connector  
(Top View)  
1
2
3
4
Figure 2-5. J700 Pin Numbers  
Table 2-6. J700 Pin Description  
PIN  
NO.  
NET NAME  
AT SCHEMATICS  
DESCRIPTION  
1
2
3
4
OUT-R  
GND  
Right headphone output  
Ground  
Reserved  
OUT-L  
Left headphone output  
2.5 Control Interface (J40)  
This interface connects the TAS5518-5152K8EVM board to a TI input-USB board.  
Table 2-7. J40 Pin Description  
NET NAME  
AT SCHEMATICS  
PIN NO.  
DESCRIPTION  
1, 3, 11, 17,  
25, 26, 31, 32  
GND  
Ground  
2, 8, 9,  
13–16, 18,  
19, 27–30  
Reserved  
4
RESET  
Backend error (or soft reset). Provides reduced click and pop reset, without resetting I2C  
volume register settings.  
5
BKND-ERR  
6
7
MUTE  
PDN  
SDA  
SCL  
Ramp volume from any setting to noiseless soft mute. Mute also can be activated by I2C.  
Power down. The TAS5518 goes to power-down state when activated.  
10  
12  
I2C data clock  
I2C bit clock  
Shutdown reporting. Activated if one or more TAS5152 has high current or high temperature  
(see Chapter 3).  
20  
21  
22  
23  
SD  
SD  
Shutdown reporting. Activated if one or more TAS5152 has high current or high temperature  
Pin 21 connected to pin 20 (see Chapter 3).  
Overtemperature warning. Activated if one or more TAS5152 has reached temperature  
warning level.  
OTW  
OTW  
Overtemperature warning. Activated if one or more TAS5152 has reached temperature  
warning level. Pin 23 connected to pin 22.  
Headphone select. Headphone active when LOW and inactive when HIGH. To use this pin, a  
100-resistor must be placed for R50.  
24  
HP-SEL  
5 V  
33, 34  
5-V dc power supply (output)  
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Digital Audio Interface (J60)  
2.6 Digital Audio Interface (J60)  
The digital audio interface contains digital audio signal data (I2S), clocks, etc. Please refer to the TAS5518  
Data Manual for signal timing and details not covered in this document.  
Table 2-8. J60 Pin Description  
NET NAME  
PIN  
AT  
DESCRIPTION  
NO.  
SCHEMATICS  
1, 3, 10,  
12, 14, 16  
GND  
Ground  
Master clock input. Low-jitter system clock for PWM generation and reclocking. Ground connection  
from source to the TAS5518 must be a low-impedance connection.  
2
MCLK  
3
GND  
SDIN1  
SDIN2  
SDIN3  
SDIN4  
Ground  
4
I2S data 1, channel 1 and 2  
I2S data 2, channel 3 and 4  
I2S data 3, channel 5 and 6  
I2S data 4, channel 7 and 8  
Reserved  
5
6
7
8, 9, 15  
11  
SCLK  
LRCLK  
I2S bit clock  
I2S left-right clock  
13  
16  
System Interfaces  
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Chapter 3  
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Protection  
This section describes the short-circuit protection and fault-reporting circuitry of the  
TAS5152 device.  
Topic .................................................................................................. Page  
3.1  
Short-Circuit Protection and Fault-Reporting Circuitry .................. 18  
3.2 Fault Reporting......................................................................... 18  
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Protection  
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Short-Circuit Protection and Fault-Reporting Circuitry  
3.1 Short-Circuit Protection and Fault-Reporting Circuitry  
The TAS5152 is a self-protecting device that provides fault reporting (including high-temperature  
protection and short-circuit protection). The TAS5152 is configured in back-end auto-recovery mode and,  
therefore, resets automatically after all errors (M1, M2, and M3 are set low). This means that the device  
restarts itself after an error and reports shortly through the SD error signal.  
3.2 Fault Reporting  
The OTW and SD outputs from the TAS5152 indicate fault conditions. Please refer to the TAS5152 Data  
Manual for a description of these pins.  
Table 3-1. TAS5152 Warning/Error Signal Decoding  
OTW  
SD  
0
DEVICE CONDITION  
High-temperature error and/or high-current error  
High-temperature warning  
0
0
1
1
1
0
Undervoltage lockout or high-current error  
Normal operation, no errors/warnings  
1
The temperature warning signals at the TAS5518-5152K8EVM board are wired-OR to one temperature  
warning signal (OTW– pin 22 in the control interface connector). Shutdown signals are wired-OR into one  
shutdown signal (SD– pin 20 in the control interface connector).  
The shutdown signals will activate with the temperature warning signal to give chip-state information as  
described in Table 3-1. Device fault-reporting outputs are open-drain outputs.°  
18  
Protection  
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EVALUATION BOARD/KIT IMPORTANT NOTICE  
Texas Instruments (TI) provides the enclosed product(s) under the following conditions:  
This evaluation board/kit is intended for use for ENGINEERING DEVELOPMENT, DEMONSTRATION, OR EVALUATION  
PURPOSES ONLY and is not considered by TI to be a finished end-product fit for general consumer use. Persons handling the  
product(s) must have electronics training and observe good engineering practice standards. As such, the goods being provided are  
not intended to be complete in terms of required design-, marketing-, and/or manufacturing-related protective considerations,  
including product safety and environmental measures typically found in end products that incorporate such semiconductor  
components or circuit boards. This evaluation board/kit does not fall within the scope of the European Union directives regarding  
electromagnetic compatibility, restricted substances (RoHS), recycling (WEEE), FCC, CE or UL, and therefore may not meet the  
technical requirements of these directives or other related directives.  
Should this evaluation board/kit not meet the specifications indicated in the User’s Guide, the board/kit may be returned within 30  
days from the date of delivery for a full refund. THE FOREGOING WARRANTY IS THE EXCLUSIVE WARRANTY MADE BY  
SELLER TO BUYER AND IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESSED, IMPLIED, OR STATUTORY, INCLUDING  
ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE.  
The user assumes all responsibility and liability for proper and safe handling of the goods. Further, the user indemnifies TI from all  
claims arising from the handling or use of the goods. Due to the open construction of the product, it is the user’s responsibility to  
take any and all appropriate precautions with regard to electrostatic discharge.  
EXCEPT TO THE EXTENT OF THE INDEMNITY SET FORTH ABOVE, NEITHER PARTY SHALL BE LIABLE TO THE OTHER  
FOR ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES.  
TI currently deals with a variety of customers for products, and therefore our arrangement with the user is not exclusive.  
TI assumes no liability for applications assistance, customer product design, software performance, or infringement of  
patents or services described herein.  
Please read the User’s Guide and, specifically, the Warnings and Restrictions notice in the User’s Guide prior to handling the  
product. This notice contains important safety information about temperatures and voltages. For additional information on TI’s  
environmental and/or safety programs, please contact the TI application engineer or visit www.ti.com/esh.  
No license is granted under any patent right or other intellectual property right of TI covering or relating to any machine, process, or  
combination in which such TI products or services might be or are used.  
FCC Warning  
This evaluation board/kit is intended for use for ENGINEERING DEVELOPMENT, DEMONSTRATION, OR EVALUATION  
PURPOSES ONLY and is not considered by TI to be a finished end-product fit for general consumer use. It generates, uses, and  
can radiate radio frequency energy and has not been tested for compliance with the limits of computing devices pursuant to part 15  
of FCC rules, which are designed to provide reasonable protection against radio frequency interference. Operation of this  
equipment in other environments may cause interference with radio communications, in which case the user at his own expense  
will be required to take whatever measures may be required to correct this interference.  
EVM WARNINGS AND RESTRICTIONS  
It is important to operate this EVM within the input voltage range of 0-35 V and the output voltage range of 15-20 V.  
Exceeding the specified input range may cause unexpected operation and/or irreversible damage to the EVM. If there are  
questions concerning the input range, please contact a TI field representative prior to connecting the input power.  
Applying loads outside of the specified output range may result in unintended operation and/or possible permanent damage to the  
EVM. Please consult the EVM User's Guide prior to connecting any load to the EVM output. If there is uncertainty as to the load  
specification, please contact a TI field representative.  
During normal operation, some circuit components may have case temperatures greater than 75°C. The EVM is designed to  
operate properly with certain components above 75°C as long as the input and output ranges are maintained. These components  
include but are not limited to linear regulators, switching transistors, pass transistors, and current sense resistors. These types of  
devices can be identified using the EVM schematic located in the EVM User's Guide. When placing measurement probes near  
these devices during operation, please be aware that these devices may be very warm to the touch.  
Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265  
Copyright © 2006, Texas Instruments Incorporated  
 
 
IMPORTANT NOTICE  
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Customers should obtain the latest relevant information before placing orders and should verify that such information is current and  
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TI warrants performance of its hardware products to the specifications applicable at the time of sale in accordance with TI’s  
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TI assumes no liability for applications assistance or customer product design. Customers are responsible for their products and  
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amplifier.ti.com  
dataconverter.ti.com  
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logic.ti.com  
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microcontroller.ti.com  
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Copyright © 2007, Texas Instruments Incorporated  
 

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