Texas Instruments SLOU082 User Manual Download Page 1

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TPA032D03 Mono ClassĆD

Audio Power Amplifier

With Stereo Headphone Amplifier

Evaluation Module

September 2000

Mixed-Signal Products

User’s Guide

SLOU082

Summary of Contents for SLOU082

Page 1: ...TPA032D03 Mono Class D Audio Power Amplifier With Stereo Headphone Amplifier Evaluation Module September 2000 Mixed Signal Products User s Guide SLOU082...

Page 2: ...this warranty Specific testing of all parameters of each device is not necessarily performed except those mandated by government requirements Customers are responsible for their applications using TI...

Page 3: ...ifier ICs J Reducing and Eliminating the Class D Output Filter TI Literature Number SLOA023 This application report covers output filter theory and design for class D audio power amplifiers FCC Warnin...

Page 4: ...iv...

Page 5: ...lay Platform Power Requirements and Connections 3 3 3 3 Plug N Play Platform Inputs and Outputs 3 4 3 3 1 Inputs 3 4 3 3 2 Outputs 3 4 3 4 Control and Indicator Circuits 3 5 3 5 TPA032D03 Class D EVM...

Page 6: ...TPA032D03 Class D EVM Top Assembly 3 11 3 6 TPA032D03 Class D EVM Bottom Assembly 3 11 3 7 TPA032D03 Class D EVM Top Layer 3 12 3 8 TPA032D03 Class D EVM Second Layer 3 12 3 9 TPA032D03 Class D EVM T...

Page 7: ...class D audio power amplifier evaluation module SLOP310 It includes a list of EVM features a brief description of the module illustrated with a pictorial diagram and a list of EVM specifications Topic...

Page 8: ...hone output jack J CE tested and approved 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 auto...

Page 9: ...2D03 Mono Class D Audio Power Amplifier EVM Top View U1 C11 R6 R5 SD Mute OUT OUT GND VDD R3 GND IN GND S1 Mute S2 SD C16 L2 TP1 TP3 TP2 VCC R14 C2 R13 L1 C5 GND VCC Texas 2000 Instruments RHP SLOP310...

Page 10: ...odel 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 TPA032D03 Class D EVM Specifications...

Page 11: ...ngs shown in Table 2 1 are typical for the TPA032D03 class D EVM There are no jumpers or switches to set on the TPA032D03 class D EVM board itself Table 2 1 Typical TI Plug N Play Platform Jumper and...

Page 12: ...r both may result Figure 2 1 Quick Start Platform Map Signal Conditioning CAUTION Do not insert or remove EVM boards with power applied ICC JP4 F1 VR1 R1 JP3 JP2 JP1 AC DC J2 VCC J1 D1 D2 D3 D4 J2 J3...

Page 13: ...care 2 Install a voltage regulator EVM SLVP097 in platform socket U6 for VDD power to EVM control inputs 3 Set to ON Tone Control Board SLOP109 is installed in U1 Power supply 7 Connect a 12 V regula...

Page 14: ...and IN pins for class D operation taking care to observe marked polarity For single ended input the negative input pin IN should be connected to the ground of the audio signal source 6 Connect a cont...

Page 15: ...s 3 2 3 2 Plug N Play Platform Power Requirements and Connections 3 3 3 3 Plug N Play Platform Inputs and Outputs 3 4 3 4 Control and Indicator Circuits 3 5 3 5 TPA032D03 Class D EVM Test Points 3 5 3...

Page 16: ...or both may result Figure 3 1 The TI Plug N Play Audio Amplifier Evaluation Platform Signal Conditioning CAUTION Do not insert or remove EVM boards with power applied ICC JP4 F1 VR1 R1 JP3 JP2 JP1 AC...

Page 17: ...om the power supply during continuous full power output peak current draw can be as high as 2 3 A Any power supply connected to the platform should be capable of providing 2 3 A peak to avoid clipping...

Page 18: ...nes when no plugs are inserted 3 3 2 Outputs Amplified audio output signals leave the platform through the left RCA phono jack J9 and the left pair of compression connectors for stripped speaker wires...

Page 19: ...ons of these pins and a description of the fault indicated Table 3 2 TPA032D03 Class D EVM Fault Indicator Table FAULT 0 TP 1 FAULT 1 TP 2 DESCRIPTION 1 1 No fault The device is operating normally 0 1...

Page 20: ...is based on VCC VDD R2 R5 and R6 and capacitor leakage currents but will typically be 97 A 5 for VCC 12 V and VDD 5 V The plug n play platform typically draws 60 mA of current 3 6 2 S2 Mute Switch Pu...

Page 21: ...ctions for Mono BTL Output 5 V 12 V Audio Line Inputs LED 0 R Shutdown Mute R 5 V LED 1 Fault Monitor U1 C11 R6 R5 SD Mute OUT OUT GND VDD R3 GND IN GND S1 Mute S2 SD C16 L2 TP1 TP3 TP2 VCC R14 C2 R13...

Page 22: ...cable is not shielded 3 7 3 Output Connections The speaker should be connected between the OUT and the OUT module pins Inserting a plug into the EVM headphone jack switches the EVM to the headphone m...

Page 23: ...C21 C22 Capacitor Ceramic Chip 0 22 F 10 50 V X7R 1206 2 Kemet C1206C224K5RAC C11 Not assembled 0 492 0 0236 0 197 1 L1 L2 Inductor SMT 15 H 20 2 2 ADC 47 2 m 1 kHz 20 to 90 C 0 398 0 398 0 236 2 TDK...

Page 24: ...DD 40 FAULT_1 41 FAULT_0 42 AGND 43 AGND 44 AGND 45 HPRIN 30 V2P5 29 PVDD 28 PGND 27 HPDR 26 CP2 25 AGND 46 47 COSC 48 AGND C16 C7 C4 C6 LIN LIN L2 L1 C21 C22 C23 C11 C10 C9 LOUT LOUT VCC C8 VCC C5 TP...

Page 25: ...B Layers The following illustrations depict the TPA032D03 class D EVM PCB assembly and layers These drawings are not to scale Gerber plots can be obtained from any TI Sales Office Figure 3 5 TPA032D03...

Page 26: ...TPA032D03 Class D EVM PCB Layers 3 12 Details Figure 3 7 TPA032D03 Class D EVM Top Layer Figure 3 8 TPA032D03 Class D EVM Second Layer...

Page 27: ...TPA032D03 Class D EVM PCB Layers 3 13 Details Figure 3 9 TPA032D03 Class D EVM Third Layer Figure 3 10 TPA032D03 Class D EVM Bottom Layer...

Page 28: ...3 14 Details...

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