Texas Instruments TAS 5611-13PHD2EVM User Manual

User's Guide

SLOU286–December 2009

TAS5611/13PHD2EVM

This user’s guide describes the operation of the evaluation module for the TAS5613 150W (TAS5611 125W) Stereo Feedback Analog-Input Digital Amplifiers from Texas Instruments. The user’s guide also provides measurement data and design information including the schematic, BOM, and PCB layout.

Contents

1 Overview ..................................................................................................................... 2

1.1 TAS5611/13PHD2EVM Features ................................................................................ 3

1.2 PCB Key Map ...................................................................................................... 3

2 Quick Setup Guide .......................................................................................................... 5

2.1 Electrostatic Discharge Warning ................................................................................. 5

2.2 Unpacking the EVM ................................................................................................ 5

2.3 Power Supply Setup ............................................................................................... 5

2.4 Applying Input Signal .............................................................................................. 5

2.5 Speaker Connection ............................................................................................... 6

2.6 Output configuration BTL and PBTL ............................................................................ 6

3 Protection .................................................................................................................... 7

3.1 Short-Circuit Protection and Fault-Reporting Circuitry ........................................................ 7

3.2 Fault Reporting ..................................................................................................... 8

4 Related Documentation from Texas Instruments ....................................................................... 8

4.1 Additional Documentation ......................................................................................... 8

Appendix A Design Documents ................................................................................................. 8

List of Figures

1 Integrated PurePath™ Digital Amplifier System ........................................................................ 3

2 Physical Structure for the TAS53630PHDEVM (Approximate Layout) .............................................. 4

3 Figure 3. PBTL Mode Configuration...................................................................................... 7

List of Tables

1 TAS5611/13PHD2EVM Specification .................................................................................... 2

2 Recommended Supply Voltages.......................................................................................... 5

3 TAS5611/13 Warning/Error Signal Decoding ........................................................................... 8

4 Related Documentation from Texas Instruments....................................................................... 8

PurePath is a trademark of Texas Instruments.

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Overview

1 Overview

The TAS5611/13PHD2EVM PurePath™ Premier Pro customer evaluation module demonstrates the integrated circuit TAS5611 or TAS5613PHD from Texas Instruments (TI).

The TAS5611 and TAS5613PHD is high-performance, integrated Stereo Feedback Analog-Input Digital Amplifier Power Stages designed to drive 4Ω speakers at up to 150W per channel for TAS5613PHD and 125W per channel for TAS5611PHD. This amplifier requires only a simple passive demodulation filter to deliver high-quality, high-efficiency audio amplification.

This EVM is configured with 2 BTL channels and the possibility to apply either a single ended or a differential analog input signal. It is also possible to configure the two BTL channels into one parallel BTL (PBTL) channel.

The OPA1632 is a High Performance Fully Differential Audio Op Amp designed to allow operation with single ended or differential input signals to the EVM.

This EVM stuffed with either TAS5611PHD or TAS5613PHD is a complete stereo analog input power amplifier ready for evaluation and great music.

Key Parameters

TAS5613 Output stage supply voltage 18 V – 36V TAS5611 Output stage supply voltage 16V - 32.5V Number of channels 2 × BTL or 1 x PBTL Load impedance BTL 4–8 Ω Load impedance PBTL 2–3 Ω TAS5613 Output power BTL 150 W / 4 Ω 10% THD TAS5613 Output power PBTL 300 W / 2Ω 10% THD TAS5611 Output power BTL 125 W / 4Ω / 10% THD TAS5611 Output power PBTL 250 W / 2Ω / 10% THD DNR >100 dB(A) Frontend OPA1632 Output stage TAS5611PHD, TAS5613PHD Other features +15 V on-board switcher from PVDD supply

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Table 1. TAS5611/13PHD2EVM Specification

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2 x AnalogInput

TAS5611/13PHD2EVM

MODULE

PowerSupply

2 Channel

SpeakerOutput

+12 VFanOut

Control

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This document covers EVM specifications, audio performance and power efficiency measurements graphs, and design documentation that includes schematics, parts list, layout, and mechanical design.

Overview

1.1 TAS5611/13PHD2EVM Features

• Stereo PurePath™ Premier Pro evaluation module.

• Self-contained protection system (short circuit and thermal).

• Standard 1VRMS single ended line input or differential input.

• Double-sided, plated-through PCB layout.

Figure 1. Integrated PurePath™ Digital Amplifier System

1.2 PCB Key Map

Physical structure for the TAS5611/13PHD2EVM is illustrated in Figure 2.

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+12 V

Regulator

SE LEFT

INPUT

(J20)

OUTPUT STAGE

CHANNEL LEFT

OUTPUT STAGE

CHANNEL RIGHT

SE RIGHT

INPUT

(J21)

RESET (SW11)

SE TO DIFF

CONVERTERS

(U15 & U16)

PVDD

(J15)

LEFT

SPEAKER

OUTPUT

(J11)

RIGHT

SPEAKER

OUTPUT

(J13)

+12 V FAN

Regulator

DIFFINPUT

(J24)

DIFFINPUT

(J25)

+12VFAN

OUT

CONTROL

(J22)

JUMPER1 JUMPER2

+15 V

Switcher

(SW1) (SW2)

PBTLPBTLBTL BTL

Overview

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Figure 2. Physical Structure for the TAS53630PHDEVM (Approximate Layout)

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2 Quick Setup Guide

This chapter describes the TAS5611/13PHD2EVM board in regards to power supply and system interfaces. The chapter provides information regarding handling and unpacking, absolute operating conditions, and a description of the factory default switch and jumper configuration.

This section provides a step–by–step guide to configuring the TAS5611/13PHD2EVM for device evaluation

2.1 Electrostatic Discharge Warning

Many of the components on the TAS5611/13PHD2EVM are susceptible to damage by electrostatic discharge (ESD). Customers are advised to observe proper ESD handling precautions when unpacking and handling the EVM, including the use of a grounded wrist strap at an approved ESD workstation.

Failure to observe ESD handling procedures may result in damage to EVM components.

2.2 Unpacking the EVM

On opening the TAS5611/13PHD2EVM package, ensure that the following items are included:

• 1 pc. TAS5611/13PHD2EVM board using one TAS5611PHD or one TAS5613PHD. If any of the items are missing, contact the Texas Instruments Product Information Center nearest you to

inquire about a replacement.

Quick Setup Guide

CAUTION

2.3 Power Supply Setup

To power up the EVM, one power supply are needed. An onboard switched voltage regulator is supplying system power, logic and gate-drive. Power supply is connected to the EVM using connector J15.

NOTE: While powering up set switch SW11 to the RESET position.

Description Voltage Limitations Current Requirement Cable

TAS5613 Output stage power 18V - 36V 16 A J15 (marked PVDD) supply

TAS5611 Output stage power 16V - 32.5V 16A J15 (marked PVDD) supply

Applying voltages above the limitations given in Table 2 may cause permanent damage to your hardware

NOTE: The length of power supply cable must be minimized. Increasing length of PSU cable is

equal to increasing the distortion for the amplifier at high output levels and low frequencies.

Table 2. Recommended Supply Voltages

CAUTION

2.4 Applying Input Signal

It is possible to apply either a single ended input signal to J20 and J21 or a differential input signal to J24 and J25.

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+12 V

Regulator

SE LEFT

INPUT

(J20)

SE RIGHT

INPUT

(J21)

RESET (SW11)

PVDD

(J15)

+12 V FAN

Regulator

DIFFINPUT

(J24)

DIFFINPUT

(J25)

+12VFAN

OUT

CONTROL

(J22)

JUMPER1 JUMPER2

Quick Setup Guide

NOTE: If a single ended input signal is applied please insert jumpers in the header J24 and J25.

2.5 Speaker Connection

Both positive and negative speaker outputs are floating and may not be connected to ground (e.g., through an oscilloscope).

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CAUTION

2.6 Output configuration BTL and PBTL

When changing mode e.g. from BTL to PBTL make sure that RESET switch (SW11) is activated before changing the state of mode switches SW1 and SW2. Switch SW1 and SW2 has to be synchronized in state BTL or PBTL.

Input signal to RCA connector J20 when operating PBTL mode. J21 is disabled. In PBTL mode, the load has to be connected according to Figure 3:

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SE LEFT

INPUT

(J20)

OUTPUT STAGE

CHANNEL LEFT

OUTPUT STAGE

CHANNEL RIGHT

SE RIGHT

INPUT

(J21)

RESET (SW11)

PVDD

(J15)

LEFT BTL SPEAKER

OUTPUT

(J11)

RIGHT BTL

SPEAKER

OUTPUT

(J13)

(SW1) (SW2)

PBTLPBTLBTL BTL

PBTL

PBTL Mode.:

Input

Signal

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Protection

Figure 3. Figure 3. PBTL Mode Configuration

3 Protection

This section describes the short-circuit protection and fault-reporting circuitry of the TAS5611 and TAS5613 devices.

3.1 Short-Circuit Protection and Fault-Reporting Circuitry

The TAS5611 and TAS5613 is self-protecting devices that provides fault reporting (including high-temperature protection and short-circuit protection). TAS5611 and TAS5613 is configured in back-end auto-recovery mode, and therefore; resets automatically after all errors (M1, M2, and M3 is set low); see the data sheet (SLAS681) (SLAS676) for further explanation. This mean that the device restart itself after an error occasion and report through the SD error signal.

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Related Documentation from Texas Instruments

3.2 Fault Reporting

The OTW and SD outputs from TAS5611/13 indicate fault conditions. See the TAS5611PHD/TAS5613PHD data manual for a description of these pins.

Table 3. TAS5611/13 Warning/Error Signal Decoding

SD OTW1 OTW2 Device Condition

0 0 0 High-temperature error and/or high-current error 0 0 1 Undervoltage lockout or high current error. 100°C

temperature warning. 0 1 1 Undervoltage lockout or high-current error 1 0 0 125°C temperature warning 1 0 1 100°C temperature warning 1 1 1 Normal operation, no errors/warnings

The shutdown signals together with the temperature warning signal give chip-state information as described in the Table 3. device fault-reporting outputs are open-drain outputs.

4 Related Documentation from Texas Instruments

Table 4 contains a list of data manuals that have detailed descriptions of the integrated circuits used in the

design of the TAS5611/13PHD2EVM. The data manuals can be obtained at the URL http://www.ti.com.

Table 4. Related Documentation from

Texas Instruments

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4.1 Additional Documentation

1. System Design Considerations for True Digital Audio Power Amplifiers application report (SLAA117)

2. Digital Audio Measurements application report (SLAA114)

3. PSRR for PurePath Digital™ Audio Amplifiers application report (SLEA049)

4. Power Rating in Audio Amplifiers application report (SLEA047)

5. PurePath Digital™ AM Interference Avoidance application report (SLEA040)

6. Click and Pop Measurements Technique application report (SLEA044)

7. Power Supply Recommendations for DVD-Receivers application report (SLEA027)

8. Implementation of Power Supply Volume Control application report (SLEA038)

Appendix A Design Documents

This appendix comprises design documents pertaining to the TAS5611/13PHD2EVM evaluation module. The documents are presented in the following order.

• Schematic (4 pages)

• Parts List (1 pages)

• PCB Specification (1 page)

• PCB Layers (6 pages)

• Heat-Sink Drawing (1 page)

• Inductor (1 page)

Part Number Literature Number

TAS5611 SLAS681 TAS5613 SLAS676

OPA1632D SBOS286

LM317M SLVS297

TL2575HV-15I SLVS638

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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 V to 32.5 V for the TAS5611; 0 V to 36 V for the TAS5613 and the output voltage range of 0 V to 32.5 V for the TAS5611; 0 V to 36 V for the TAS5613.

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 90°C. The EVM is designed to operate properly with certain components above 125°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

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