TPA3122D2 EVM User's Guide (Rev. A
Contents
1. da TEXAS INSTRUMENTS www ti com GAIN1 J2 GAINO J1 Amplifier Gain dB ON ON 20 ON OFF 26 OFF ON 32 OFF OFF 36 UI OFF denotes jumper is REMOVED ON denotes jumper INSTALLED 2 2 3 Applying Power to the EVM 1 Verify correct voltage and input polarity for the external power supplies Turn ON The EVM starts operation 2 Adjust the input signal Adjust the control inputs to the desired settings as described in the Control Inputs section 4 Adjust the amplifier gain by installing or removing the gain jumpers J1 and J2 to yield the gain values described in Table 2 Gei 3 Schematic and PCB Layers Figure 3 TPA3122D2 EVM Schematic vec vcc A A J7 vee JMP4 J8 vec GND A 0_OHM e S vec J9 c3 mp vec ae LIN 1 0uF me L2 TP2 or mes 2 d E z S e 22uH ra 470uF z Ge a xx D gt 2 S A a D sw2 t 0 1uF SS 5 T S 1 4 MUTE i R7 Kg R9 H o 10K 1 Y STEE PONOC EC LEET OUT m L SD LOUT t E a A 3 MUTE pe 18 DG d TP9 LIN 4 1Z C15 0 22uF IS LGND J4 EIN LIN AVCC1 t s O enD 5 16 3H RIN avcc2 18 TP12 BYPASS GAINO 2 9 RGND 5 S L AGHD GAN C12 0 22 SC O 13 22uF GND AGND2 BSR RIGHT OUT 9 12 be c9 no o Ja VCLAMP ROUT INPURI ND RIO 2 PVCCR PGNDR Hi 1 l S TPA3122_PDI2. TI currently deals with a variety of customers for products and therefore our arrangement with the user is not exclusive Tl 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 Te 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 b
3. acknowledge and agree that if they use any non designated products 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 Applications Amplifiers amplifier ticom Audio www ti com audio Data Converters dataconverter ti com Automotive www ti com automotive DSP dsp ti com Broadband www ti com broadband Interface interface ti com Digital Control www ti com digitalcontrol Logic logic ti com Military www ti com military Power Mgmt power ti com Optical Networking www ti com opticalnetwork Microcontrollers microcontroller ti com Security www ti com security RFID www ti rfid com Telephony www ti com telephony Low Power www ti com lpw Video amp Imaging www ti com video Wireless Wireless www ti com wireless Mailing Address Texas Instruments Post Office Box 655303 Dallas Texas 75265 Copyright 2007 Texas Instruments Incorporated
4. 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
5. 122D2 Audio Power Amplifier EVM Top View TEXAS INSTRUMENTSJINC rn HEEL SI LEET IN L c9 RIGHT_OUT SN Jt J2 GAINO GAINI photobot_LOU21 2 TPA3122D2 EVM SLOU214A December 2007 Revised December 2007 Submit Documentation Feedback d TEXAS INSTRUMENTS www ti com Quick Start for Stand alone Operation 1 2 EVM Specifications Table 1 TPA3122D2 EVM Specifications Value Units VCC Supply voltage range 10 to 30 V ICC Supply current 3 maximum A Continuous output power per channel Po oo VCC 27V THD N 10 P i RL Minimum load impedance 4 Q 2 Quick Start for Stand alone Operation 2 1 2 2 2 2 1 2 2 2 Use these procedures to operate the TPA3122D2 EVM in a stand alone configuration or when connecting it into existing circuits or equipment Connections to the EVM module can be made by inserting stripped wire or using banana plugs for the power supply and output connections The inputs accept standard RCA plugs Power Supply 1 Ensure that all external power sources are set to OFF 2 Connect an external regulated power supply adjusted from 10 30 V to the module VCC J7 and GND J8 banana jacks taking care to observe marked polarity Evaluation Module Preparations Inputs and Outputs 1 Connect a speaker across GND J5 and ROUT J6 Connect another speaker across LOUT J3 and GND J4 2 Install both gain jumpers GAINO J1 and GAIN1 J2 This sets the a
6. P i lt fe 5 L1 x g 2 i x a C1_ 0 1uF l 3 za W ca TP8 i r 4e2 O s 1 0uF ROUT By g 470uF o e cac2 al o c10 SE Be be O o TP7 TPS 4 swi 5 Ve 6 6 w Ju m a ul w SHUTDOWN gE Eas als ae ZJel Ze 3 3 S E GND Si 2 ee t 4 6 A 1 A GAINO Ga A TPA3122D2 EVM SLOU214A December 2007 Revised December 2007 Submit Documentation Feedback d TEXAS INSTRUMENTS www ti com Schematic and PCB Layers Figure 4 TPA3122D2 EVM Top Side Layout C004 LOU214 Figure 5 TPA3122D2 EVM Bottom Side Layout C005_LOU214 SLOU214A December 2007 Revised December 2007 TPA3122D2 EVM 5 Submit Documentation Feedback da TEXAS INSTRUMENTS www ti com Bill of Materials 4 Bill of Materials All components should be lead free Table 3 TPA3122D2 EVM Bill of Materials Reference Description Install Size Qt Mfg Part y C1 C7 C14_ Capacitor ceramic 0 1uF 10 X7R yes 0603 3 TDK C1608X7R1H104K 50V T C2 C8 C10 Capacitor electrolytic 470uF 35V yes Radial 4 Nichicon UHE1V471MHO06 C17 105 C Low impedance C3 C4 C5 Capacitor ceramic 1 0uF 10 X7R yes 0603 4 TDK C1608X7R1C105K C6 16V C9 C16 Capacitor metal poly 0 68uF 63V yes Radial 2 Epcos B32529C684J Inc C12 C15 Capacitor ceramic 0 22uF 10 X7R yes 0603 2 TDK C1608X7R1C224K 16V T C13 Capacitor ce
7. anted 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 Information published by TI regarding third party products or services does not constitute a license from TI to use such products or services or a warranty or endorsement thereof Use of such information may require a license from a third party under the patents or other intellectual property 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 accompanied by all associated warranties conditions limitations and notices Reproduction of this information with alteration is an unfair and deceptive business practice TI is not responsible or liable for such altered documentation Information of third parties may be subject to additional restrictions Resale of TI products or services with statements different from or beyond the parameters stated by TI for that product or service voids all express and any implied warranties for the associated TI product or service and is an unfair and deceptive business practice TI is not responsible 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
8. d TEXAS User s Guide INSTRUMENTS SLOU214A December 2007 Revised December 2007 TPA3122D2 EVM Contents 1 elei BEE 1 2 Quick Start for Stand alone Operation ENEE 3 3 Schematic and PCB LAVESMS cesses ccicwin araceeeie maitre aynaresiertier arcrieiaiacicle e E S EEE OSR 4 4 Bill of dE E 6 List of Figures 1 TPA3122D2 Audio Power Amplifier EVM Top View 2 2 TPA3122D2 Audio Power Amplifier EVM Bottom View 2 3 TPA3122D2 EVM SehemaAli Oierri sorsana a a E E E ene 4 4 TPA3122D2 EVM Top Side LEE eege eege EEE EEEE AE E EEE E EEEE 5 5 TPAS122D2 EVM Bottom Side Lawnut ssesrgeuisieee seier geg NEIE nesnenin senedinin eanais aSa 5 List of Tables 1 TRAS122D2 GMT lee EE 3 2 Gain Jumper Settings s sssesstss ENNEN ENEE ENEE EEN ER REENEN EEN EENN ENNKE SEN eni be na aaa anaras eege 4 3 TRAS122D2 EVM KE RE EE 6 1 Introduction 1 1 Description The TPA3122D2 evaluation module EVM consists of a single 15 W class D stereo audio power amplifier complete with a small number of external components mounted on a circuit board The EVM can be used to directly drive speakers with an external analog audio source as the input Figure 1 and Figure 2 display the top and bottom views of the EVM respectively For additional information consult the TPA3122D2 data sheet SLOS527 SLOU214A December 2007 Revised December 2007 TPA3122D2 EVM 1 Submit Documentation Feedback 3 TEXAS INSTRUMENTS www ti com Introduction Figure 1 TPA3
9. e required to take whatever measures may be required to correct this interference Mailing Address Texas Instruments Post Office Box 655303 Dallas Texas 75265 Copyright 2007 Texas Instruments Incorporated EVM WARNINGS AND RESTRICTIONS It is important to operate this EVM within the input voltage range of 10 V to 30 V and the output voltage range of 0 V to 30 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 85 C The EVM is designed to operate properly with certain components above 85 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 th
10. ese devices may be very warm to the touch Mailing Address Texas Instruments Post Office Box 655303 Dallas Texas 75265 Copyright 2007 Texas Instruments Incorporated IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries Tl 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 should obtain the latest relevant information before placing orders and should verify that such information is current and complete All products are sold subject to Tl 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 standard warranty Testing and other quality control techniques are used to the extent TI deems necessary to support this warranty Except where mandated 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 and applications using TI components To minimize the risks associated with customer products and applications customers should provide adequate design and operating safeguards TI does not warrant or represent that any license either express or implied is gr
11. mplifier gain to the lowest level 20 dB Control Inputs e SHUTDOWN terminal is active LOW A LOW on the device terminal less than 0 8 V shuts down the amplifier a HIGH greater than 2 V on the device terminal places the amplifier in the active state Pressing and holding the switch SW1 places the amplifier in the SHUTDOWN state Releasing the SW1 switch returns the amplifier to the active state This terminal is VCC compliant e MUTE terminal is active HIGH A HIGH greater than 2 V on this terminal immediately terminates audio playback through the speakers a LOW less than 0 8 V enables the device The outputs remain switching with fifty percent duty cycle The EVM SW2 switch controls the state of the MUTE terminal Pressing and holding the SW2 switch places the amplifier in the MUTE state Releasing the SW2 switch returns the amplifier to the active state This terminal is VCC compliant e GAINO GAIN1 Together these terminals determine the gain of the amplifier see Table 2 Installing a jumper in J1 or J2 sets the respective terminal to GND Removing the jumper sets the respective terminals to VCC Removing jumpers increases the gain while installing jumpers decreases the gain Logic levels are TTL compatible These terminals are VCC compliant SLOU214A December 2007 Revised December 2007 TPA3122D2 EVM 3 Submit Documentation Feedback Schematic and PCB Layers Table 2 Gain Jumper Settings
12. ramic 10uF 80 20 no 1210 1 Murata GRM32DF51H106 Y5V 50V ZAO1L L1 L2 Inductor 22uH radial lead ferrite yes Radial 2 Toko A7503AY 220M material shielded R1 R4 Resistor chip 10 kQ yes 0603 4 Panasoni ERA V15J103V 1 16 W 5 c R6 R7 Resistor chip 4 7 KQ 1 10 W 5 yes 0603 2 Panasoni ERJ 3GEYJ472V c R9 R10 Resistor chip zero Q 1 10 W 5 yes 0603 2 Panasoni ERJ 3GEYOROOV c J1 J2 Header 2 position Male yes 2mm 2 Norcomp 2163 36 01 P2 JP1 JP2 SHUNT 2 mm yes 2mm 2 Specialty 2JM G shunts J3 J8 Banana Jack w knurled Thumbnut nickel yes 6 Johnson 111 2223 001 plate J9 J10 Phono Jack PC mount switched yes 2 Switchcra PJRAN1X1U03 ft SW1 SW2 SWITCH PB SPST 20mA yes 6mm x 3 3mm 2 TYCO FSMC Standoffs 5 8 length yes 4 Keystone 1808 4 40 thread Screws 4 40 375 yes 4 U1 TPA3122D2N yes 20 pin PDIP 1 TI TPA3122D2N 6 TPA3122D2 EVM SLOU214A December 2007 Revised December 2007 Submit 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 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
13. reasonably be expected to cause severe personal injury or death unless officers of the parties have executed an agreement specifically governing such use Buyers represent that they have all necessary expertise in the safety and regulatory ramifications of their applications and acknowledge and agree that they are solely responsible for all legal regulatory and safety related requirements concerning their products and any use of TI products in such safety critical applications notwithstanding any applications related information or support that may be provided by TI Further Buyers must fully indemnify TI and its representatives against any damages arising out of the use of TI products in such safety critical applications TI products are neither designed nor intended for use in military aerospace applications or environments unless the TI products are specifically designated by TI as military grade or enhanced plastic Only products designated by TI as military grade meet military specifications Buyers acknowledge and agree that any such use of TI products which TI has not designated as military grade is solely at the 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 are designated by TI as compliant with ISO TS 16949 requirements Buyers
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