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TPA1517NE Audio Power Amplifier Evaluation Module
DATA MANUAL: SLOU007
Date: July 1997
IMPORTANT NOTICE Texas Instruments and its subsidiaries (TI) reserve the right to make changes to their products or to discontinue any product or service without notice, and advise customers to obtain the latest version of relevant information to verify, before placing orders, that information being relied on is current and complete. All products are sold subject to the terms and conditions of sale supplied at the time of order acknowledgement, including those pertaining to warranty, patent infringement, and limitation of liability. TI warrants performance of its semiconductor products to the specifications applicable at the time of sale in accordance with TI's standard warranty. Testing and other quality control techniques are utilized to the extent TI deems necessary to support this warranty. Specific testing of all parameters of each device is not necessarily performed, except those mandated by government requirements. CERTAIN APPLICATIONS USING SEMICONDUCTOR PRODUCTS MAY INVOLVE POTENTIAL RISKS OF DEATH, PERSONAL INJURY, OR SEVERE PROPERTY OR ENVIRONMENTAL DAMAGE ("CRITICAL APPLICATIONS"). TI SEMICONDUCTOR PRODUCTS ARE NOT DESIGNED, AUTHORIZED, OR WARRANTED TO BE SUITABLE FOR USE IN LIFE-SUPPORT DEVICES OR SYSTEMS OR OTHER CRITICAL APPLICATIONS. INCLUSION OF TI PRODUCTS IN SUCH APPLICATIONS IS UNDERSTOOD TO BE FULLY AT THE CUSTOMER'S RISK. In order to minimize risks associated with the customer's applications, adequate design and operating safeguards must be provided by the customer to minimize inherent or procedural hazards. TI assumes no liability for applications assistance or customer product design. TI does not warrant or represent that any license, either express or implied, is granted under any patent right, copyright, mask work right, or other intellectual property right of TI covering or relating to any combination, machine, or process in which such semiconductor products or services might be or are used. TI's publication of information regarding any third party's products or services does not constitute TI's approval, warranty or endorsement thereof.
Copyright (c) 1999, Texas Instruments Incorporated
Read This First
About This Manual
The purpose of this document is to serve as a reference manual for the TPA1517NE 6 Watt/Channel Stereo Audio Power Amplifier Evaluation Module (SL0P105). This document provides information on the optimal setup and operation of this product.
How to Use this Manual This document contains the following chapters: Chapter 1 Overview
A general description of the TPA1517NE, its key features, operating specifications, and design notes.
Chapter 2
Hardware
A description of the TPA1517NE, hardware including board schematic, connections, layout and bill of materials.
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Contents
1. Quick Start ..................................................................................................................... 6 1.1 Introduction .................................................................................................................... 7 1.2 Layout Definition ............................................................................................................ 7 1.3 Operation Notes............................................................................................................. 8 2.1 Schematic .................................................................................................................... 10 2.2 Input/Output Connections ............................................................................................ 11 2.3 Controls........................................................................................................................ 12 2.4 Layout .......................................................................................................................... 13 2.5 Bill of Materials ............................................................................................................ 15
Figures
FIGURE 1. TPA1517NE COMPONENT PLACEMENT ................................................................. 7 FIGURE 2. TPA1517NE EVM SCHEMATIC ........................................................................... 10 FIGURE 3. INPUT/OUTPUT CONNECTIONS.............................................................................. 11
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I. Quick Start for P-N-P Kit Included below is a quick checklist of setup steps to get the TPA1517NE up and running fast. 1. Set S1 to the "off" position. 2. Align the TPA1517NE with socket U2, such that the side with 4 pins is adjacent to socket U1, and firmly connect it to the P-N-P board. 3. Check the power supply jumper setting on the P-N-P board. To use battery power select JP3, to select wall mount AC/DC power select JP2, or to use a bench type DC power supply select JP1 Note: be sure only one of these three jumpers is connected by a shorting block. 4. Check the mode/mute jumper circuitry (JP6, JP7, JP8). To begin with, set JP7 to Lo, JP8 to Lo and JP6 to Mute. This arrangement causes the TPA1517NE to be active when no headphones are present. In the future refer to Table 1 in the P-N-P board Application Report (SLOU001) to adjust these settings. 5. Check the Audio Input Path Selection Circuitry, if there is no EVM present in U1, then set S2 to the "off" position 6. Set S3 to the "U5" position (only if U5 EVM is present). 7. Connect a mono audio source to either J3 or J5 (or both), or connect a stereo audio source to J4. 8. Connect a 4 or 8 ohm speaker(s) to either (or both of) the RCA jacks at J7 and J9 or to the wire clips at J8. 9. Connect your power supply to the P-N-P board. 10. Push S1 to the "on" position, and activate your audio source. Step 10 will activate the EVMs present on the P-N-P. If you do not hear sound, please consult the troubleshooting section of the P-N-P Board application report (SLOU001).
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Introduction
1.1 Introduction The TPA1517NE EVM (SLOP105) is designed to provide the circuitry required to evaluate the TPA1517NE performance without having to invest in PCB layout or assembly. Refer to the application note in the TPA1517 data sheet (SLOS162A) for a description of the circuit configuration and selection of components. 1.2 Layout Description
Figure 1 - TPA1517NE
Lit. # SLOP105
RIN R1 GND C2 TPA1517NE GND R2 LIN TPA1517NE C1
GND +12V
ROUT GND GND
+ C8
C6
D2 D1 C5
R11
+
S2 R6
C3 Q2
R3 S1 R8 R4 R5 R7 MUTE S3 GND GND LOUT
U1 Q1 C7 R9 R10 C4
+
TPA1517NE SAMPLE EVM REV. A
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Layout Definition
TPA1517NE
U1 - TPA1517NE stereo 5 W Audio Amplifier C1, 2, 6, 7 - Capacitor, 1.0 F, Ceramic C3, 4 - Capacitor, 470 F 16 V Alum Elect C5 - Capacitor, 2.2 F, Ceramic C8 - Capacitor, 100 F, 25 V Alum Elect R1, 2 - Potentiometer, 50 k, 3/4 Turn R3, 4, 9 - Resistor, 10 k Carbon R5, 6 - Resistor, 47 k Carbon R7, 10 - Resistor, 1 k Carbon R8, - Resistor, 6.8 k Carbon R11 - Resistor, 220 Carbon S1, 2, - Jumper S3, - Switch, Norm Open, Momentary
1.3 Operation Notes
The TPA1517NE EVM (SLOP105) was designed to plug into TI's P-NP Audio Evaluation Platform (SLOP097). Slot U2 on the P-N-P also is compatible with the TPA1517DWP EVM. No soldering is required for use in the P-N-P system. Standard speaker jacks, RCA jacks and 1/8" headphone jacks are provided on the P-N-P for quick and easy evaluation of all TI audio power amplifiers. The TPA1517 is designed to drive 4 ohm speakers up to 6W.
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Operation Notes The connection pins of the TPA1517NE EVM are on a 0.1" grid for easy interface to standard plugboard based prototype systems. The Thermal layout of the EVM is important. Linear Audio Power Amplifiers dissipated large amounts of heat during operation. The data sheet for the TPA1517 (SLOS162A) details heat dissipation for 12 and 14.5 volt operation. The 20-Pin DIP NE package has a special internal design where pins 10 through 20 are thermally connected to the chip. These pins must then be thermally connected to as much copper areas as possible on the surface of the PCB or to internal ground planes. Special consideration should be given to the thermal layout due to the effect on maximum ambient temperature operation. Copper area on the surface should then be connected to the ground plane layer by vias. The vias should not use WEBed connections but should have a solid connection to the copper areas. The solid connections make a much better thermal connection.
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Schematic
2.1 Schematic
PUMP UP THE VOLUME
TPA1517NE EVM Circuit SLOP105 V GND
CC
In Right (RIN)
R 1 50 k C 1 1 uF
C 6 1 uF D 2 1N914 D 1 1N914 C 2 1 uF
C 8 100 uF
C 3 470 uF
Out Right GND
R11 220
S 2 depop VCC R 3 10 k R 6 47 k R R 4 5 10 k 47 k Q1,2 FMMT 3904CT R 7 1k Mute/STBY (Mute) S 3 Mute R10 1k C 7 1 uF
In Left (LIN)
R 2 50 k
C 5 2.2 uF R 8 6.8 k 10 GND/HS GND/HS 11 9 In 2 + GND/HS 12 8 M/SB GND/HS 13 7 VCC GND/HS 14 6 Vo 2 GND/HS 15 5 PGND GND/HS 16 4 Vo 1 GND/HS 17 3 SVRR GND/HS 18 2 SGND GND/HS 19 1 In 1 + S 1 M/SD GND/HS 20
R 9 10 k
C 4 470 uF
Out Left GND
= Ground Plane
= Signal Ground
Figure 2 - Schematic of 1517NE EVM
Power: 9.5 to 15 Vdc, 2.5 A peak, 0.5 A rms (Normal Music Input). Audio Inputs: Stereo, Cap Coupled Speaker Outputs: 4 ohm drive, 3 W rms/Channel (Tone Output) 8 ohm drive, 1.5 W rms/Channel (Tone Output)
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Input/Output Connections
2.2 Input/Output Connections
TPA1517NE EVM Hookup Diagram
9.5 V to 15 V DC
TPA
+
Power Supply
C1 10 uF
PUMP UP THE VOLUME
-
Lit. # SLOP105
RIN
GND +12V
Audio Input
GND
+ C8
R1 C1 C6
D2 D1 C5
R11
ROUT GND GND
+
S2 R6
C3 Q2
R3 S1 R8 R4 R5 R7 MUTE S3 GND GND LOUT
C2 TPA1517NE GND R2 TPA1517NE
U1 Q1 C7 R9 R10 C4
Standard 1/8" Stereo Jack
LIN
+
TPA1517NE SAMPLE EVM REV. A
S1 - In = Shutdown Mode, Out = Mute Mode S2 - In = Depop Enhance Mode, Out = Depop Off S3 - Press and hold to Mute/Shutdown (according to S1 setting). R1, 2 - Volume Control, 3/4 Turn, Full Clockwise = Maximum Volume
04/19/97
Figure 3. EVM Connections Diagram
The connections diagram shows a stereo output drive system using the TPA1517NE EVM (SLOP105) configured to drive stereo speakers. A standard 1/8" stereo input jack is shown providing a convenient connection to CD players or other commercial sources of audio signals. Key Features: The key features of the system are: 1) Stereo Single Ended (SE) drive of 4 ohm or 8 ohm speakers. The input and output coupling capacitors are included on the EVM making connections very simple. 2) Mute of the Speaker Drive - Either pressing the Mute switch or providing an external TTL control of the Mute input allows one to mute the speaker output. 3) The special DIP NE package is thermally connected the PCB ground plane for enhanced thermal performance.
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Controls
2.3 Controls
Mute/Standby Select - S1: Jumper in place sets low current standby mode. Jumper out sets mute mode. Mode is activated by Switch S3 or external TTL input at Mute input. Depop Select - S2: Jumper in place selects enhanced Depop mode. Jumper out disables depop circuitry. Mute Input/Switch - S3: Low activates mute/standby (S1) circuitry. Switch S3 is a momentary action push button. Press S1 to mute. R1/R2 Gain Control Pots: 3/4 turn adjusts amplifier Volume. Clockwise increases volume. The M/SB pin of the IC (PIN 8) operates over a range of voltages. 2 volts is standby mode, 3.4 to 8.8 volts is mute mode and 9.2 to Vcc is operate mode. Transistors Q1 and Q2 form a network to allow TTL control of the M/SB function. S1 determines the active voltage range of the transistor circuit into M/SB. When S1 is in place transistor Q2 pulls M/SB to 0 volts (Standby mode), when S1 is out, resistor R8 forms a divider network with R3 to set the voltage in the Mute range. Typically mute mode pop noises are not as loud as standby mode pops. Diodes D1 and D2 when enabled by S2 allow the charge on the output coupling caps to drain during standby mode. This helps reduce pop noises when returning to operating mode.
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Board Layout
2.4 Layout
NOTE: Layouts are not to scale.
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NOTE: Layouts are not to scale.
14
Bill of Materials
2.5 Bill of Materials
DESCRIPTION CAP., 1.0UF, +80/-20%, NON POLARIZED, SMD SIZE 1206 CAP., 2.2UF,20%, NON POLARIZED, SMD SIZE 1206 CAP, 470UF, +80/-20%,16VDC, ALUMINUM ELECTROLYTIC, XXMM DIA,7MM CTRS. CAP, 100UF, +80/-20%,16VDC, ALUMINUM ELECTROLYTIC ,10MM DIA,5MM CTRS. POT., 50 K OHM, 1/2W, 20%,THRU HOLE RES., 10 K OHM, 1/10W, 5%, SMD, SIZE 0805 RES., 1 K OHM, 1/10W, 1%, SMD, SIZE 0805 RES., 47 K OHM, 1/10W, 5%, SMD, SIZE 0805 RES., 6.98 K OHM, 1/10W, 1%, SMD, SIZE 0805 RES., 220 OHM, 1/10W, 1%, SMD, SIZE 0805 SWITCH, MOMENTARY, SMD REF. DESIG. C1,C2,C6, C7 C5 C3,C4 MANUFAC. DIGI KEY PART NUMBER PART NUMBER (MURATA) GRM42- (NEWARK) 6Y5V105Z16BL 93F2254 (TDK) C3216X5R1A225 (PANASONIC) (DIGI-KEY) ECE-A1CF471 P6708-ND (PANASONIC) ECE-A1CF101 (BOURNS) 3323P SERIES 50K (PANASONIC) ERJ-6GEYJ103V (PANASONIC) ERJ-6GEYJ102V (PANASONIC) ERJ-6GEYJ473V (PANASONIC) ERJ-6GEYJ698V (PANASONIC) ERJ-6GEYJ221V (PANASONIC) 8048SCT-ND or EVQ-PJS04K (NORCOMP) (3M) (ZETEX) FMMT3904CT-ND LL4148CT-ND (TI) TPA1517NE (DIGI-KEY) P6705-ND (DIGI-KEY) 3323P-503-ND (DIGI-KEY) P10KABK-ND (DIGI-KEY) P1.00KCCT-ND (DIGI-KEY) P47KABK-ND (DIGI-KEY) P6.98KCCT-ND (DIGI-KEY) P221CCT-ND (DIGI-KEY) P8048SCT-ND (DIGI-KEY) 2163-02-ND (DIGI-KEY) 953170-30-ND (DIGI-KEY) FMMT3904CT-ND (DIGI-KEY) LL4148CT-ND PCBA Qty 4 1 2
C8
1
R1,R2 R3, R4, R9 R7, R10 R5, R6 R8 R11 S3
2 3 2 2 1 1 1
HEADER, 1X2,2MM CTRS. SHUNTS, 2MM TRANSISTOR, FMMT3904CT,SMD,S0T-23 DIODE, LL4148CT-ND, SMD, PACKAGE DL-35 IC., TPA1517NE, AUDIO AMPLIFIER, 2 CHANNEL,20 PIN DIP PCB, TPA1517NE SAMPLE EVM
S1,S2 P1 Q1,Q2 D1,D2 U1
2 1 2 2 1
PCB1
(COMPUROUTE) TOOL #008451
1
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