Texas Instruments TPA2017D2 Manuale utente

1 Introduction

1.1 Description

1.2 TPA2017D2EVM Specifications

User's GuideSLOU234 – April 2009

TPA2017D2 Audio Power Amplifier EVM

Contents1 Introduction ................................................................................................................... 12 Operation ..................................................................................................................... 23 Schematic and Bill of Materials ............................................................................................ 3

List of Figures

1 EVM Schematic .............................................................................................................. 32 Top Side Layout.............................................................................................................. 43 Bottom Side Layout .......................................................................................................... 4

List of Tables

1 Gain Settings ................................................................................................................. 2

The TPA2017D2 is a stereo, filter-free Class-D audio power amplifier with automatic gain control (AGC),dynamic range compression (DRC). The AGC and DRC functions enhance the perceived audio loudness,and at the same time prevent speaker damage from overdrive. Availability in the QFN package makesTPA2017D2 an ideal choice for laptop and portable applications. The TPA2017D2 evaluation module(EVM) is a complete, stand-alone audio board. It contains the TPA2017D2 QFN (RTJ) Class-D audiopower amplifier.

The TPA2017D2 evaluation module (EVM) is a complete stand-alone audio board. All components arePb-free.

Supply voltage range, V

4.5 V to 5.5 VSupply current, I

1 A, maximumSpeaker amplifier output power per channel, P

: 4 Ω, V

= 5 V, THD+N = 1% 2 W

SLOU234 – April 2009 TPA2017D2 Audio Power Amplifier EVM 1Submit Documentation Feedback

2 Operation

2.1 Quick-Start List for Stand-Alone Operation

2.1.1 Speaker Amplifier

2.1.2 Power Supply

2.1.3 Evaluation Module Preparations

2.1.4 Power Up

Operation

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Follow these steps to use the TPA2017D2EVM stand-alone or when connecting it into existing circuits orequipment. Connections to the EVM can be made by inserting stripped wire or using banana plugs for thepower supply and output connections. The inputs accept standard RCA plugs.

1. Ensure that all external power sources are set to OFF.2. Connect an external regulated power supply adjusted to 5 V to the module VDD and GND bananajacks, taking care to observe marked polarity.

Inputs and Outputs1. If connecting to a fully differential input or a grounded input (the shield of the RCA is GND), removejumpers JP1 and JP2 from the EVM. If connecting to a floating source like a portable CD, installjumpers JP1 and JP2. After setting the JP1 and JP2 jumpers appropriately, connect the input source tothe speaker left and right inputs (INL and INR) .2. Connect a speaker across OUTR+ and OUTR-. Connect another speaker across OUTL+ and OUTL-.

Control Inputs1. Enable: Hold down switch EN to place the amplifier in shutdown. Release EN to reactivate theamplifier.

2. AGC1/AGC2: Together, these terminals determine the AGC setting of the amplifier. See Table 1 .Installing the jumpers in position 0 sets the respective terminal to GND. Installing the jumpers inposition 1 sets the respective terminals to VDD.

Table 1. Gain Settings

AGC1 AGC2 Function

0 0 AGC Function disabled0 1 AGC Limiter Function enabledAGC, Limiter, and Compression Functions1 0

enabledAGC, Limiter, Compression, and Noise Gate1 1

Functions enabled

1. Verify correct voltage and input polarity, and turn on the external power supplies.The EVM should begin operation.2. Adjust the input signal.3. Adjust the control inputs to the desired settings.4. Adjust the amplifier AGC setting by installing/removing the jumpers, AGC1 and AGC2.

List of Tables2 SLOU234 – April 2009Submit Documentation Feedback

3 Schematic and Bill of Materials

3.1 TPA2017D2EVM Schematic

Red

VDD

Black

GND

Vdd

Vdd Vdd

Vdd

QFN20-RTJ

TPA2017D2RTJ

15 14 13 12

321

PowerPad

1 2

RCA (Black)

INL

INR

RCA (Red)

JP1

JP2

2 1

0603

100

0603

100

0603

.047ufd/25V

0603

.047ufd/25V

0603

1.0ufd/10V

0603

1.0ufd/10V

0603

C13

1.0ufd/10V

0603

1.0ufd/10V

C15

0603

100K

0603

0.1ufd/25V

C10

C11

0.1ufd/25V

0603 0603

0.1ufd/25V

C12

C14

0.1ufd/25V

0603

AGC1

AGC2

1206

10ufd/16V

0.875" 0.875" 0.875" 0.875"

0805

100ohms/4A

0805

100ohms/4A

0805

0603

1000pfd/50V

C16

C17

1000pfd/50V

0603

1000pfd/50V

C18

C19

1000pfd/50V

0603

1.00K

0603

1.00K

0603

4700pfd/50V

C20

C21

4700pfd/50V

0603

4700pfd/50V

C22

C23

4700pfd/50V

0603

White

TP1

TP2

White

TP3

TP4

White

OUTR+

OUTR-

OUTL-

OUTL+

Black

GND

ONLY

TESTING

EMI

FOR

J1/J2/J3

BOM ONLY

GND

INPUT

FILTER

STANDOFFS

SHUNTS

JP1 JP2 AGC1 AGC2

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Schematic and Bill of Materials

Figure 1. EVM Schematic

SLOU234 – April 2009 List of Tables 3Submit Documentation Feedback

3.2 TPA2017D2EVM PCB Layers

Schematic and Bill of Materials

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Figure 2. Top Side Layout

Figure 3. Bottom Side Layout

List of Tables4 SLOU234 – April 2009Submit Documentation Feedback

3.3 TPA2017D2EVM Bill of Materials

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Schematic and Bill of Materials

Description RefDes QTY MFG MFG Part# Vendor Vendor Part#

TI-SEMICONDUCTORS

TEXASStereo AGC Class-D amplifier U1 1 TEXAS INSTRUMENTS TPA2017D2RTJ TPA2017D2RTJINSTRUMENTS

Description RefDes QTY MFG MFG Part# Vendor Cut Tape Part#

CAPACITORS

CAP 1000PFD 50V CERM 0603 COG ROHS C16, C17, C18, C19 4 TDK CORP. C1608C0G1H102J DIGI-KEY 445-1293-2

CAP 4700PFD 50V CERM 0603 X7R C20, C21, C22, C23 4 PANASONIC ECJ-1VB1H472K DIGI-KEY PCC1780TR

CAP .047UFD 25V CERM 0603 X7R ROHS C2, C3, C4, C5 4 PANASONIC ECJ-1VB1E473K DIGI-KEY PCC1771TR

CAP 0.1UFD 25V CERM 0603 X5R ROHS C10, C11, C12, C14 4 PANASONIC 06033D104KAT2A DIGI-KEY 478-1244-2

CAP 1.0UFD 10V 10% CERM 0603 X5R ROHS C6, C7, C8, C9, C13, C15 6 PANASONIC ECJ-1VB1A105K DIGI-KEY PCC2174TR

CAP 10UFD 16V 10% CERM 1206 X5R ROHS C1 1 KEMET C1206C106K4PACTU DIGI-KEY 399-5091-2

RESISTORS

RES 100 OHM 1/10W 1% SMD 0603 ROHS R1, R2, R3, R4 4 VISHAY CRCW0603100RFKEA DIGI-KEY 541-100HTR

RES 1.00K OHM 1/16W 1% SMD 0603 R6, R7, R8, R9 4 PANASONIC ERJ-3EKF1001V DIGI-KEY P1.00KHTR

RES 100K OHM 1/10W 5% SMD 0603 ROHS R5 1 PANASONIC ERJ-3GEYJ104V DIGI-KEY P100KGTR

FERRITE BEADS

FERRITE BEAD, 100 Ohms 4A 100MHz SM0805 L1, L2, L3, L4 4 TDK CORPORATION MPZ2012S101A DIGI-KEY 445-1567-2

HEADERS AND JACKS

HEADER, 2 PIN MALE, PCB STRAIGHT GOLD

J1, J2, J3 3 SULLINS PBC02SAAN DIGI-KEY S1011E-02ROHS

HEADER 2 PIN, PCB 2.0MM ROHS JP1, JP2 2 NORCOMP 26630201RP2 DIGI-KEY 2663S-02

HEADER 3 PIN, PCB 2.0MM ROHS AGC1, AGC2 2 NORCOMP 26630301RP2 DIGI-KEY 2663S-03

JACK, RCA, PCB-RA, BLACK INL 1 SWITCHCRAFT PJRAN1X1U01 NEWARK 16C1858

JACK, RCA, PCB-RA, RED INR 1 SWITCHCRAFT PJRAN1X1U03 NEWARK 16C1860

TESTPOINTS AND SWITCHES

KEYSTONEPC Testpoint, Black GND, GND 2 5001 DIGI-KEY 5001KELECTRONICS

KEYSTONEPC Testpoint, White TP1, TP2, TP3, TP4 4 5002 DIGI-KEY 5002KELECTRONICS

Switch, Momentary SMT-Short, Black Tab, 240g EN 1 PANASONIC EVQ-PPDA25 DIGI-KEY P8087STR

BINDING POSTS

OUTL-, OUTL+, OUTR-, JOHNSONBINDING POST, 15A, UNINSULATED 4 111-2223-001 DIGI-KEY J587OUTR+ COMPONENTS

KEYSTONEBINDING POST, BLACK, 15A ECONO GND 1 7007 DIGI-KEY 7007KELECTRONICS

KEYSTONEBINDING POST, RED, 15A ECONO VDD 1 7006 DIGI-KEY 7006KELECTRONICS

SHUNTS

SHUNT, BLACK AU FLASH 2 MM ROHS JP1, JP2, AGC1, AGC2 4 NORCOMP INC. 810-002-SP2L001 DIGI-KEY SP2-001E

STANDOFFS AND HARDWARE

Hex Nut, 4-40, Zinc/Steel HW1, HW2, HW3, HW4 4 BUILDING FASTENERS HNZ440 DIGI-KEY H216

KEYSTONEStandoff 4-40 Threaded M/F 0.50 in. ALUM-HEX HW1, HW2, HW3, HW4 4 8401 DIGI-KEY 8401KELECTRONICS

Component Count: 71

SLOU234 – April 2009 List of Tables 5Submit Documentation Feedback

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 PURPOSESONLY and is not considered by TI to be a finished end-product fit for general consumer use. Persons handling the product(s) must haveelectronics training and observe good engineering practice standards. As such, the goods being provided are not intended to be completein terms of required design-, marketing-, and/or manufacturing-related protective considerations, including product safety and environmentalmeasures typically found in end products that incorporate such semiconductor components or circuit boards. This evaluation board/kit doesnot 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 fromthe date of delivery for a full refund. THE FOREGOING WARRANTY IS THE EXCLUSIVE WARRANTY MADE BY SELLER TO BUYERAND IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESSED, IMPLIED, OR STATUTORY, INCLUDING ANY WARRANTY OFMERCHANTABILITY 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 claimsarising 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 allappropriate 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 ANYINDIRECT, 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 orservices 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. Thisnotice contains important safety information about temperatures and voltages. For additional information on TI’s environmental and/orsafety 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, orcombination 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 PURPOSESONLY and is not considered by TI to be a finished end-product fit for general consumer use. It generates, uses, and can radiate radiofrequency energy and has not been tested for compliance with the limits of computing devices pursuant to part 15 of FCC rules, which aredesigned to provide reasonable protection against radio frequency interference. Operation of this equipment in other environments maycause interference with radio communications, in which case the user at his own expense will be required to take whatever measures maybe required to correct this interference.

EVM WARNINGS AND RESTRICTIONS

It is important to operate this EVM within the input voltage range of 4.5 V to 5.5 V and the output voltage range of 0 V to 5.5 V.Exceeding the specified input range may cause unexpected operation and/or irreversible damage to the EVM. If there are questionsconcerning 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 85 °C. The EVM is designed to operateproperly with certain components above 85 °C as long as the input and output ranges are maintained. These components include but arenot limited to linear regulators, switching transistors, pass transistors, and current sense resistors. These types of devices can be identifiedusing 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.

IMPORTANT NOTICE

Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements,and other changes to its products and services at any time and to discontinue any product or service without notice. Customers shouldobtain the latest relevant information before placing orders and should verify that such information is current and complete. All products aresold subject to TI’s terms and conditions of sale supplied at the time of order acknowledgment.TI warrants performance of its hardware products to the specifications applicable at the time of sale in accordance with TI’s standardwarranty. Testing and other quality control techniques are used to the extent TI deems necessary to support this warranty. Except wheremandated by government requirements, testing of all parameters of each product is not necessarily performed.TI assumes no liability for applications assistance or customer product design. Customers are responsible for their products andapplications using TI components. To minimize the risks associated with customer products and applications, customers should provideadequate design and operating safeguards.TI does not warrant or represent that any license, either express or implied, is granted under any TI patent right, copyright, mask work right,or other TI intellectual property right relating to any combination, machine, or process in which TI products or services are used. Informationpublished by TI regarding third-party products or services does not constitute a license from TI to use such products or services or awarranty or endorsement thereof. Use of such information may require a license from a third party under the patents or other intellectualproperty of the third party, or a license from TI under the patents or other intellectual property of TI.Reproduction of TI information in TI data books or data sheets is permissible only if reproduction is without alteration and is accompaniedby all associated warranties, conditions, limitations, and notices. Reproduction of this information with alteration is an unfair and deceptivebusiness practice. TI is not responsible or liable for such altered documentation. Information of third parties may be subject to additionalrestrictions.

Resale of TI products or services with statements different from or beyond the parameters stated by TI for that product or service voids allexpress and any implied warranties for the associated TI product or service and is an unfair and deceptive business practice. TI is notresponsible or liable for any such statements.TI products are not authorized for use in safety-critical applications (such as life support) where a failure of the TI product would reasonablybe expected to cause severe personal injury or death, unless officers of the parties have executed an agreement specifically governingsuch use. Buyers represent that they have all necessary expertise in the safety and regulatory ramifications of their applications, andacknowledge and agree that they are solely responsible for all legal, regulatory and safety-related requirements concerning their productsand any use of TI products in such safety-critical applications, notwithstanding any applications-related information or support that may beprovided by TI. Further, Buyers must fully indemnify TI and its representatives against any damages arising out of the use of TI products insuch safety-critical applications.TI products are neither designed nor intended for use in military/aerospace applications or environments unless the TI products arespecifically designated by TI as military-grade or "enhanced plastic." Only products designated by TI as military-grade meet militaryspecifications. Buyers acknowledge and agree that any such use of TI products which TI has not designated as military-grade is solely atthe Buyer's risk, and that they are solely responsible for compliance with all legal and regulatory requirements in connection with such use.TI products are neither designed nor intended for use in automotive applications or environments unless the specific TI products aredesignated by TI as compliant with ISO/TS 16949 requirements. Buyers acknowledge and agree that, if they use any non-designatedproducts in automotive applications, TI will not be responsible for any failure to meet such requirements.Following are URLs where you can obtain information on other Texas Instruments products and application solutions:Products ApplicationsAmplifiers amplifier.ti.com Audio www.ti.com/audioData Converters dataconverter.ti.com Automotive www.ti.com/automotiveDLP® Products www.dlp.com Broadband www.ti.com/broadbandDSP dsp.ti.com Digital Control www.ti.com/digitalcontrolClocks and Timers www.ti.com/clocks Medical www.ti.com/medicalInterface interface.ti.com Military www.ti.com/militaryLogic logic.ti.com Optical Networking www.ti.com/opticalnetworkPower Mgmt power.ti.com Security www.ti.com/securityMicrocontrollers microcontroller.ti.com Telephony www.ti.com/telephonyRFID www.ti-rfid.com Video & Imaging www.ti.com/videoRF/IF and ZigBee® Solutions www.ti.com/lprf Wireless www.ti.com/wireless

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