TPA2005D1EVM

         User’s Guide July 2002 Mixed-Signal Products SLOU134 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 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 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 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. 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Mailing Address: Texas Instruments Post Office Box 655303 Dallas, Texas 75265 Copyright  2002, Texas Instruments Incorporated EVM IMPORTANT NOTICE Texas Instruments (TI) provides the enclosed product(s) under the following conditions: This evaluation kit being sold by TI is intended for use for ENGINEERING DEVELOPMENT OR EVALUATION PURPOSES ONLY and is not considered by TI to be fit for commercial use. As such, the goods being provided may not be complete in terms of required design-, marketing-, and/or manufacturing-related protective considerations, including product safety measures typically found in the end product incorporating the goods. As a prototype, this product does not fall within the scope of the European Union directive on electromagnetic compatibility and therefore may not meet the technical requirements of the directive. Should this evaluation kit not meet the specifications indicated in the EVM User’s Guide, the 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. Please be aware that the products received may not be regulatory compliant or agency certified (FCC, UL, CE, etc.). 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 EVM User’s Guide and, specifically, the EVM Warnings and Restrictions notice in the EVM User’s Guide prior to handling the product. This notice contains important safety information about temperatures and voltages. For further safety concerns, please contact the TI application engineer. Persons handling the product must 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 machine, process, or combination in which such TI products or services might be or are used. Mailing Address: Texas Instruments Post Office Box 655303 Dallas, Texas 75265 Copyright  2002, Texas Instruments Incorporated EVM WARNINGS AND RESTRICTIONS It is important to operate this EVM within the supply voltage range of 2.5 V to 5.5 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 these devices may be very warm to the touch. Mailing Address: Texas Instruments Post Office Box 655303 Dallas, Texas 75265 Copyright  2002, Texas Instruments Incorporated Information About Cautions and Warnings Preface Read This First Information About Cautions and Warnings This book may contain cautions and warnings. This is an example of a caution statement. A caution statement describes a situation that could potentially damage your software or equipment. This is an example of a warning statement. A warning statement describes a situation that could potentially cause harm to you. The information in a caution or a warning is provided for your protection. Please read each caution and warning carefully. Related Documentation From Texas Instruments J TI Plug-N-Play Audio Amplifier Evaluation Platform (literature number SLOU011) provides detailed information on the evaluation platform and its use with TI audio evaluation modules. J TPA2005D1 1.1-W Mono Filter-Free Class-D Audio Power Amplifier (literature number SLOS369) This is the data sheet for the TPA2005D1 audio amplifier integrated circuit. iii FCC Warning FCC Warning 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. iv Contents Contents 1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.1 Feature Highlights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.2 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.3 TPA2005D1 EVM Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 1-2 1-3 1-4 2 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.1 Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.2 Quick Start List for Platform . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.3 Quick Start List for Stand-Alone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.4 References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.4.1 TPA2005D1 EVM Connected for Stereo BTL Output . . . . . . . . . . . . . . . . . . . . . 2.4.2 TPA2005D1 EVM Schematic Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.4.3 TPA2005D1 Audio Power Amplifier Evaluation Module Parts List . . . . . . . . . . 2.4.4 TPA2005D1 EVM PCB Layers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1 2-2 2-3 2-4 2-6 2-6 2-7 2-7 2-8 Figures 1–1 2–1 2–2 2–3 2–4 2–5 2–6 The TI TPA2005D1 Audio Amplifier Evaluation Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Quick Start Platform Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Quick Start Module Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TPA2005D1 EVM Connected for Stereo BTL Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TPA2005D1 EVM Schematic Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TPA2005D1 EVM Top Layer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TPA2005D1 EVM Bottom Layer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3 2-2 2-4 2-6 2-7 2-8 2-9 Tables 2–1 2–2 2–3 Typical TI Plug-N-Play Platform Jumper and Switch Settings for the TPA2005D1 EVM . 2-1 Platform Jumper and Switch Settings for the TPA2005D1 EVM . . . . . . . . . . . . . . . . . . . . . . 2-3 TPA2005D1 EVM Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7 v Contents vi Chapter 1 Introduction This chapter provides an overview of the Texas Instruments (TI) TPA2005D1 MicroStar Junior BGA audio amplifier evaluation module (SLOP381). It includes a list of EVM features, a brief illustrated description of the module, and a list of EVM specifications. Topic Page 1.1 Feature Highlights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–2 1.2 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–3 1.3 TPA2005D1 EVM Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–4 1-1 Feature Highlights 1.1 Feature Highlights The TI TPA2005D1 audio amplifier evaluation module and the TI plug-n-play audio amplifier evaluation platform include the following features: - TPA2005D1 Low-Voltage Audio Power Amplifier Evaluation Module J 2.5 mm x 2.5 mm MicroStar Junior BGA J Fully-differential filter-free class-D amplifier J Single channel, bridge-tied load (BTL) J 2.5-V and 5.5-V operation J 1.1-W output power into 8 Ω at 5 V, BTL J Internal depop and quick start-up circuitry J Internal thermal and short-circuit protection J Module gain is set at 2 V/V - Quick and Easy Configuration With the TI Plug-n-Play Audio Amplifier Evaluation Platform J Evaluation module is designed to simply plug into the platform, automatically making all signal, control, and power connections. J Platform provides flexible power options. J Jumpers on the platform select power and module control options. J Switches on the platform route signals. J Platform provides quick and easy audio input and output connections. - Platform Power Options J Onboard 9-V battery J External 5-V–15-V (VCC) supply inputs J External regulated VDD supply input J Socket for onboard 5-V/3.3-V VDD voltage regulator EVM J Onboard overvoltage and reverse polarity power protection - Platform Audio Input and Output Connections 1-2 J Left and right RCA phono jack inputs J Miniature stereo phone jack input J Left and right RCA phono jack outputs J Left and right compression speaker terminal outputs J Miniature stereo headphone jack output Description 1.2 Description The TPA2005D1 audio power amplifier evaluation module is a complete, low-power single-channel audio power amplifier. It consists of the TI TPA2005D1 1.1-W low-voltage class-D audio power amplifier IC in a very small MicroStar Junior BGA package, along with a small number of other parts mounted on a circuit board that is approximately one and a quarter inches square (see Figure 1–1). Figure 1–1. The TI TPA2005D1 Audio Amplifier Evaluation Module † Due to the very small size of the MicroStar Junior BGA IC package, the standard part number TPA2005D1 is replaced with the code PB051. Single in-line header pins are mounted to the underside of the module circuit board. These pins allow the EVM to be plugged into the TI plug-n-play audio amplifier evaluation platform or to be wired directly into existing circuits and equipment when used stand-alone. Introduction 1-3 TPA2005D1 EVM Specifications The platform, which has room for a pair of TPA2005D1 evaluation modules, is a convenient vehicle for demonstrating TI’s audio power amplifier and related evaluation modules. The EVMs simply plug into the platform, which automatically provides power to the modules, interconnects them correctly, and connects them to a versatile array of standard audio input and output jacks and connectors. Easy-to-use configuration controls allow the platform and EVMs to quickly model many possible end-equipment configurations. There is nothing to build, nothing to solder, and nothing but the speakers included with the platform to hook up. 1.3 TPA2005D1 EVM Specifications Supply voltage range, VDD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.5 V to 5.5 V Power supply current rating required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 450 mA Continuous output power, PO: 8-Ω BTL, VDD = 5 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.1 W Audio input voltage, VI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 V to VDD, max Minimum load impedance, ZL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Ω 1-4 Chapter 2 Operation Follow the steps in this chapter to prepare the TPA2005D1 audio amplifier EVM for use. Using the TPA2005D1 EVM with the TI plug-n-play audio amplifier evaluation platform is a quick and easy way to connect power, signal and control inputs, and signal outputs to the EVM, using standard connectors. However, the audio amplifier evaluation module can be used stand-alone by making connections directly to the module pins, and it can be wired directly into existing circuits or equipment. The platform switch and jumper settings shown in Table 2–1 are typical for the TPA2005D1 EVM. They cause the TPA2005D1 amplifier IC on the EVM to shut down when a plug is inserted into platform headphone jack J10. Table 2–1. Typical TI Plug-N-Play Platform Jumper and Switch Settings for the TPA2005D1 EVM EVM JP6 JP7 JP8 S2 S3 TPA2005D1 Mute X Lo See Note 2 X Notes: 1) X = Don’t care 2) Set S2 to ON when signal conditioning board is installed in U1; set S2 to OFF when no signal conditioning board is installed. Topic Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–2 2.1 Precautions 2.2 Quick Start List for Platform . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–3 2.3 Quick Start List for Stand-Alone 2.4 References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–6 . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–4 Operation 2-1 Precautions 2.1 Precautions Power Supply Input Polarity and Maximum Voltage Always ensure that the polarity and voltage of the external power connected to VCC power input connector J1, J2, and/or VDD power input connector J6 are correct. Overvoltage or reverse-polarity power applied to these terminals can open onboard soldered-in fuses and cause other damage to the platform, installed evaluation modules, and/or the power source. Inserting or Removing EVM Boards Do not insert or remove EVM boards with power applied—damage to the EVM board, the platform, or both may result. Figure 2–1. Quick Start Platform Map 6b 1 10 C1+ On Off 6b ICC VR2 JP4 VR1 + U2 Speaker Output 4 J9 Left Out + Stereo Headphone Output HP Out J10 + S3 HP Source Spk(U2-U4) C3 C2 JP8 U5 JP7 HP(U5) U2-U4 R3 R4 5 + JP6 U4 U5 GND TP1 2 9 – Left Out On Conditioning TEXAS INSTRUMENTS 1997 2-2 + Right – Out U3 Off S2 U1 J5 Left In 3 Mode Mute Polarity Lo Hi ****CAUTION**** Do not insert or remove EVM boards with power applied Plug-N-Play Audio Amplifier Evaluation Platform SLOP097 Rev. C.1 J6 VDD In/Out LED2 VDD Audio Power Amps J4 Stereo In Audio Input J8 J7 Right Out JP5 IDD LED1 VCC J3 Right In 8 DC Power In/Out R2 R1 Signal Conditioning 6a F2 B1 D1 D2 D3 D4 J2 AC/DC In Power Input U6 6b POWER SUPPLY S1 Pwr VCC In + J1 JP3 Batt JP2 AC/DC JP1 (J2) VCC(J1) DC SOURCE F1 6b R5 9 Quick Start List for Platform 2.2 Quick Start List for Platform Follow these steps when using the TPA2005D1 EVM with the TI plug-n-play audio amplifier evaluation platform (see the platform user’s guide, SLOU011, for additional details). Numbered callouts for selected steps are shown in Figure 2–1. - Platform preparations 1) Ensure that all external power sources are set to off and that the platform power switch S1 is set to off. 2) Install a TPA2005D1 module in platform sockets U3 and U4 for stereo operation (or a module in either U3 or U4 for single channel operation), taking care to align the module pins correctly. 3) Use switch S2 to select or bypass the signal conditioning EVM (U1). 4) Set control signal polarity jumper JP8 to Lo. 5) Set jumper JP6 to select the mute control input. Jumper, J1, on the TPA2005D1 EVM must be open to allow the TPA2005D1 to shutdown if a plug is inserted into platform headphone jack J10. Table 2–2. Platform Jumper and Switch Settings for the TPA2005D1 EVM EVM JP6 JP7 JP8 S2 S3 TPA2005D1 Mute X Lo See Note 2 X Notes: 1) X = Don’t care 2) Set S2 to ON when signal conditioning board is installed in U1; set S2 to OFF when no signal conditioning board is installed. - Power supply 6) Select and connect the power supply: a) Connect an external regulated power supply set to a voltage between 2.5 V and 5.5 V to platform VDD power input connector J6, taking care to observe marked polarity, or b) Install a voltage regulator EVM (SLVP097 or equivalent.) in platform socket U6. Install a 9-V battery in B1 or connect a 7 V–12 V power source to a platform VCC power input J1 or J2 and jumper the appropriate power input (see platform user’s guide). - Inputs and outputs 7) Ensure that signal source level is set to minimum. 8) Connect the audio source to left and right RCA phono jacks J3 and J5 or to stereo miniature phone jack J4. 9) Connect 8-Ω–32-Ω speakers to left and right RCA jacks J7 and J9 or to stripped wire connector J8. - Power Up 10) Verify correct voltage and input polarity and set the external power supply to on. If VCC and an on-board regulator EVM are used to provide VDD, set platform power switch S1 to on. Platform LED2 lights, indicating the presence of VDD, and the evaluation modules installed on the platform begin operation. 11) Adjust the signal source level as needed. Operation 2-3 Quick Start List for Stand-Alone 2.3 Quick Start List for Stand-Alone Follow these steps to use the TPA2005D1 EVM stand-alone or when connecting it into existing circuits or equipment. Connections to the TPA2005D1 module header pins can be made via individual sockets, wire-wrapping, or soldering to the pins, either on the top or the bottom of the module circuit board. Numbered callouts for selected steps are shown in Figure 2–2. Figure 2–2. Quick Start Module Map 2 5 6 4 ‡ Due to the very small size of the MicroStar Junior BGA IC package, the standard part number TPA2005D1 is replaced with the code PB051. - Power supply 1) Ensure that all external power sources are set to off. 2) Connect an external regulated power supply set to 5 V to the module VDD and GND pins, taking care to observe marked polarity. - Inputs and outputs 3) Ensure that the signal source level is set to minimum. 4) Connect the positive lead from the audio source to the module IN+ pin and the negative lead to the IN– pin. 2-4 Quick Start List for Stand-Alone 5) Ensure that SHUTDOWN jumper, J1, is installed for active mode, or leave J1 open and drive the SHUTDOWN EVM pin with TTL level logic. 6) Connect an 8-Ω–32-Ω speaker to the module OUT+ and OUT– pins. - Power Up 7) Verify correct voltage and input polarity and set the external power supply to on. The EVM begins operation. 8) Adjust the signal source level as needed. Operation 2-5 References 2.4 References 2.4.1 TPA2005D1 EVM Connected for Stereo BTL Output Figure 2–3. TPA2005D1 EVM Connected for Stereo BTL Output 5 VDC Right Audio Input (Right) 5 VDC External Mute Control Left Audio Input (Left) † Due to the very small size of the MicroStar Junior BGA IC package, the standard part number TPA2005D1 is replaced with the code PB051. 2-6 TPA2005D1 Audio Power Amplifier Evaluation Module Parts List 2.4.2 TPA2005D1 EVM Schematic Diagram Figure 2–4. TPA2005D1 EVM Schematic Diagram VDD 2.5 V to 5.5 V GND C4 10 µF + J1 A1 SHUTDOWN B1 R3 150 kΩ C1 C1 0.22 µF D1 IN+ C2 0.22 µF SHUTDOWN VO – NC GND IN+ VDD IN – VO + A4 † OUT– B4, C4 D4 C3 0.22 µF GND R1 150 kΩ OUT+ IN– R2 150 kΩ † A2, A3, B3, C2, C3, D2, D3 2.4.3 TPA2005D1 Audio Power Amplifier Evaluation Module Parts List Table 2–3. TPA2005D1 EVM Parts List Reference Description Manufacturer/ Part Number Digi-Key Number Size Qty. A 1 Panasonic ECS-TOJY106R Digi-Key PCS1106CT-ND C4 Capacitor, 10 µF, 6.3 V C1–C3 Capacitor, 0.22 µF, 80%/–20%, nonpolarized 0603 3 Panasonic ECJ–1VF1C224Z Digi-Key PCC1790TR–ND R1–R3 Resistor, 150 kΩ, 1/16 W, 1% 0603 3 Panasonic ERJ-3EKF1503V Digi-Key P150KHTR-ND J1 Header, 2 mm, 2 position 1 Norcomp 2163-2-02-P2 Digi-Key 2163R-02-ND 2 mm shunt 1 Norcomp 2MS-19-02-01 Digi-Key SPE1303-ND Terminal post headers 7 Sullins PTC36SABN Digi-Key S1022-36-ND 1 TI TPA2005D1GQY U1 IC, TPA2005D1GQY†, audio amplifier, 1.1 W, mono PCB1 PCB, TPA2005D1 EVM 2.5 mm x 2.5 mm 1 † Due to the very small size of the MicroStar Junior BGA IC package, the standard part number TPA2005D1 is replaced with the code PB051. Note: All items are SMD except terminal posts. Operation 2-7 TPA2005D1 EVM PCB Layers 2.4.4 TPA2005D1 EVM PCB Layers The following illustrations depict the TPA2005D1 EVM PCB layers and silkscreen. These drawings are not to scale. Gerber plots can be obtained from any TI sales office. Figure 2–5. TPA2005D1 EVM Top Layer 2-8 TPA2005D1 EVM PCB Layers Figure 2–6. TPA2005D1 EVM Bottom Layer Operation 2-9 2-10