Texas Instruments TPA2012D2 User's Manual
Contents
1. 005 Revised April 2005 49 5 INSTRUMENTS www ti com Reference 3 2 201202 EVM Schematic Diagram VDD VDD R4 R3 120kQ 120 9 T E VDD GAIN1 9 GAINO o o 7 C12 7T C9 V V 10 uF 10 uF VDD Not Populated VDD V V eii 2 Ch 21 C10 0 1 uF 1uF V C5 1 pF V A 4 INL OUTL gt ce 1uF 7T 1pF 1nF 1uF NR C8 L3 OUTL gt INR C3 pc VDD 1nF R1 V 120 ko V L2 OUTR SDR C2 VDD 1nF SDR JP1 R2 ut 120 kQ V e OUTR gt SDL C1 27 1nF ail NV Figure 4 TPA2012D2 EVM Schematic Diagram SLOU174A February 2005 Revised April 2005 TPA2012D2 Audio Power Amplifier Evaluation Module 5 49 5 INSTRUMENTS www ti com Related Documentation From Texas Instruments 3 8 TPA2012D2 Audio Power Amplifer Evaluation Module Parts List Table 2 TPA2012D2 EVM Parts List Part No Description Size Qty Vendor Part Number C1 C4 Capacitor Ceramic 1 nF 50V X7R 0402 4 TDK C1005X7R1H102 C5 C8 C10 Capacitor Ceramic 1 uF 6 3V Y5V 0402 5 TDK C1005Y5VOJ105 C11 Capacitor Ceramic 0 1 pF 6 3V X5R 0402 1 TDK C1005X5R1A104 C12 Capacitor Ceramic 10 uF 10V Y5V 0805 1 TDK C2012Y5V1A106 C9 Capacitor Do not populate 0805 1 R1 R4 Resistor 120 K 1 16W2. 196 0402 2 Pb free SDL SDR Momentary switch 2 Panasonic EVQ PPBA25 U1 TPA2012D2 audio amplifier WCSP 1 TI QFN TPA2012D2 QFN package TI GAINO GAIN1 Jumper Position 2 mm Header 3 Norcomp 2163 36 01 P2 J1 PNP Terminal post headers 12 Sullins PTC36SABN HEADERS SAMTEC TSW 19 8 G S L1 L4 Ferrite Bead 0603 4 TDK MPZ16088221A PCB TPA2012D2 EVM printed circuit board 1 4 Related Documentation From Texas Instruments e TPA2012D2 2 1 W Stereo Filter Free Class D Audio Power Amplifier SLOS438 This is the data sheet for the TPA2012D2 audio amplifier integrated circuit 6 TPA2012D2 Audio Power Amplifier Evaluation Module SLOU174A February 2005 Revised April 2005 FCC Warnings This equipment is intended for use in a laboratory test environment only It generates uses and can radiate radio frequency energy and has not been tested for compliance with the limits of computing devices pursuant to subpart J of 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 IMPORTANT NOTICE CATEGORY B IMPORTANT TI is providing the enclosed TPA2012D2 evaluation module under the following conditions This evaluation module EVM being provided b
3. 35 TEXAS User s Guide INSTRUMENTS SLOU174A February 2005 Revised April 2005 TPA2012D2 Audio Power Amplifier Evaluation Module The TPA2012D2 audio power amplifier evaluation module is a complete low power Class D stereo audio power amplifier capable of delivering 1 2 W channel YZH package All components and the evaluation module are Pb Free Contents 1 1 2 2 3 3 4 Related Documentation From Texas Instruments eese ee essen eee eene 6 List of Figures 1 TPA2012D2 Output 4 455 454855 8 8 E DUNS 2 2 TOP 4 3 een 4 4 TPA2012D2 EVM Schematic Diagram 5 List of Tables 1 3 2 TPA2012D2 EVM Parts List 1 Introduction This section provides an overview of the Texas Instruments TI TPA2012D2 NanoFree WCSP audio amplifier evaluation module TPA2012D2 EVM It includes a brief description of the module and a list of EVM specifications 1 1 TPA2012D2 EVM Specifications Supply voltage range Vpp 2 5Vto 5 5 V Power supply curr
4. TICE 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 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 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 Tl 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 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 u
5. d application solutions Products Applications Amplifiers amplifier ti com 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
6. ent rating required 25A Continuous output power Po 4 0 BTL Vpp 5 V 1 2 W see note Audio input voltage Vj 0 V to Vpp Minimum load impedance Z 4Q Note The TPA2012D2 in the RTJ package QFN is rated at 2 1 W channel The YZH package WCSP is thermally limited to 1 2 W channel on the EVM For layouts with higher trace density and additional copper the maximum output power will be larger See the data sheet for device descriptions NanoFree is a trademark of Texas Instruments SLOU174A February 2005 Revised April 2005 TPA2012D2 Audio Power Amplifier Evaluation Module 1 Operation 9 TEXAS INSTRUMENTS www ti com 1 5 V 10 6 V 196 3 6 V 10 565 5 196 Von 8 6 V 10 Po Output Power W Load Resistance Figure 1 TPA2012D2 Output Power Note The dashed portion of the curve indicates the region where the TPA2012D2YZH WCSP is thermally limited Output power in this region will depend on the heat dissipation provided by the circuit board TPA2012D2RTJ QFN is not thermally limited and can achieve output power along both the solid and dashed portions of the curves 2 Operation This section describes how to operate the TPA2012D2 EVM 2 1 Quick Start for Stand Alone Operation Use the following steps when operating the TPA2012D2 EVM standalone or when connecting the EVM into existing circuits or equipment 2 1 2 2 2 Power and Gro
7. he State of Texas EVM WARNINGS AND RESTRICTIONS It is important to operate this EVM within the input voltage range of 2 5 V to 5 V and the output voltage range of xxx V to xxx 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 60i C The EVM is designed to operate properly with certain components above 60712 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 O 2004 Texas Instruments Incorporated IMPORTANT NO
8. ir 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 products are designated by TI as compliant with ISO TS 16949 requirements Buyers 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 an
9. n of the product it is the user s responsibility to take any and all appropriate precautions with regard to electrostatic discharge NEITHER PARTY WILL BE LIABLE TO THE OTHER FOR ANY INDIRECT SPECIAL INCIDENTAL OR CONSEQUEN TIAL DAMAGES Tl is currently dealing with various customers for products and therefore our arrangement with the user will not be exclusive Tl assumes no liability for applications assistance customer product design software performance or infringement of patents or services described herein e Please read the User s Guide and specifically the section in the Users Guide pertaining to warnings and restrictions prior to handling the product This section contains important information regarding high temperature and voltages which TI recommends to be read before handling the EVMs In case of any doubt regarding safety please contact the TI application engineer Persons handling the product should have electronics training and observe good laboratory practice standards No license is granted under any patent right or other intellectual property right of TI covering or relating to any combination machine or process in which such TI products or services might be or are used This Agreement is subject to the laws of the State of Texas excluding the body of conflicts of laws and the United Nations Convention on the International Sale of Goods and will be subject to the exclusive jurisdiction of the courts of t
10. sed 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 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 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 any implied warranties for the associated TI product or service and is an unfair and deceptive business practice Tl 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 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 the
11. stalled 1 Jumper not installed Shutdown Controls The TPA2012D2 provides independent shutdown controls so that each channel can be controlled separately The shutdown pins SDL and SDR are active low This means that a low voltage ground on this pin places the appropriate channel in shutdown mode Using the pushbuttons provided on the EVM the TPA2012D2 can be placed in shutdown by pressing and holding the button s down Both buttons must be depressed in order for both channels of the TPA2012D2 to turn off When the buttons are released the appropriate channel on the device restarts The jumper J1 can be used to tie SDL and SDR signals together With jumper J1 installed both channels can be placed in shutdown by pressing either SDL or SDR This is the default configuration Reference 2 Verify the voltage setting of the power supply is between 2 5 V and 5 5 V and turn ON the power supply Proper operation of the EVM should begin 3 Adjust the audio signal source as needed 3 Reference This section includes the EVM schematic parts list and board layout reference SLOU174A February 2005 Revised April 2005 TPA2012D2 Audio Power Amplifier Evaluation Module 3 9 TEXAS INSTRUMENTS www ti com Reference 3 1 TPA2012D2 EVM PCB Layers INSTRUMENTS TPA2012D2bE VM Zn 8 L Figure 2 Top Layer Figure 3 Bottom Layer 4 TPA2012D2 Audio Power Amplifier Evaluation Module SLOU174A February 2
12. und Ensure the external power sources are set to OFF Set the power supply voltage between 2 5 V and 5 5 V When connecting the power supply to the EVM make sure to attach the ground connection to the GND header pin first and then connect the positive supply to the VDD header pin Verify that the connections are made to the correct header pins Inputs and Outputs Audio Ensure that the audio source is set to the minimum level Connect the audio source to the inputs INL and INR For a differential audio source connect the audio source directlty to the appropriate input header pins Fora single ended audio source connect the audio source to the negative input header pin of the appropriate channel and ground the positive audio input header pin Connect speakers 4 232 Q to the output pins OUTL and OUTR Gain Control The GAINO and GAIN1 jumpers control the gain setting of the TPA2012D2 With the jumpers installed the GO and G1 pins are pulled to ground See Table 1 for gain setting values TPA2012D2 Audio Power Amplifier Evaluation Module SLOU174A February 2005 Revised April 2005 INSTRUMENTS www ti com 2 1 2 3 1 2 2 Power Up 1 Verify the correct connections as described in Sections 2 1 1 and 2 1 2 Table 1 Gain Settings Amplifier Gain Setting typ GAIN1 1 GAINO V V dB 0 0 2 6 0 1 4 12 1 0 8 18 1 1 16 24 0 0 Jumper in
13. y Texas Instruments TI is intended for use for ENGINEERING DEVELOPMENT OR EVALUATION PURPOSES ONLY and is not considered by Texas Instruments to be fit for commercial use As such this EVM may not be complete in terms of design and or manufacturing related protective considerations including product safety measures typically found in the end product incorporating the module As a prototype this product does not fall within the scope of the European Union Directive on electromagnetic compatibility and on low voltage and therefore may not meet the technical requirements of the directive This EVM is not subject to the EU marking requirements Should this EVM not meet the specifications indicated in the User s Guide the EVM may be returned within 30 days from the date of delivery for a full refund THE FOREGOING WARRANTY IS THE EXCLUSIVE WARRANTY MADE BY TI 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 EVM The user acknowledge that the use of the EVM could present serious hazards and that it is the user s responsibility to take all precautions for the handling and use of the EVMs in accordance with good laboratory practices Please be aware that the products received may not be regulatory compliant or agency certified FCC UL etc Due to the open constructio
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