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TPA2008D2 EVM Schematic

3-2

Reference

3.1

TPA2008D2 EVM Schematic

Figure 3–1. TPA2008D2 Filter-Free Class-D EVM Schematic Diagram

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LINN

LINP

SHUTDOWN

PVDD

LOUTP

PGND

PGND

LOUTN

PVDD

COSC

ROSC

AGND

RINN

RINP

BYPASS

PVDD

ROUTP

PGND

PGND

ROUTN

PVDD

NC

VOLUME

VDD

R2

120 k

Ω

C6

220 pF

C11
10

µ

F

C7

1

µ

F

S1

SHUTDOWN

R1

120 k

Ω

C3

0.1

µ

F

C4

0.1

µ

F

SHUTDOWN

LIN–

LIN+

VDD

LOUT+

GND

LOUT–

C8
1

µ

F

R3 50 k

Ω

CW

CCW

C10
1

µ

F

C9
1

µ

F

C5
1

µ

F

C2

0.1

µ

F

C1

0.1

µ

F

GND

VDD

VOLUME

VDD

ROUT–

GND

ROUT+

RIN–

RIN+

U1

TPA2008D2

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Summary of Contents for TPA2008D2

Page 1: ... July 2003 Mixed Signal Products User s Guide SLOU116 ...

Page 2: ...tute 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...

Page 3: ... 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 A...

Page 4: ...e 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 switc...

Page 5: ...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 w...

Page 6: ...integrated circuit 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 ...

Page 7: ...escription 1 3 1 3 TPA2008D2 EVM Specifications 1 4 2 Operation 2 1 2 1 Precautions 2 2 2 2 Quick Start List for Platform 2 3 2 3 Quick Start List for Stand Alone 2 4 2 4 Power Requirements 2 6 3 Reference 3 1 3 1 TPA2008D2 EVM Schematic 3 2 3 2 TPA2008D2 EVM PCB Layers 3 3 3 3 TPA2008D2 EVM Parts List 3 4 3 4 DC Volume Table 3 5 ...

Page 8: ...tion 2 4 2 3 Quick Start for Stand Alone Operation 2 5 3 1 TPA2008D2 Filter Free Class D EVM Schematic Diagram 3 2 3 2 TPA2008D2 Filter Free Class D EVM Top Assembly 3 3 3 3 TPA2008D2 Filter Free Class D EVM Bottom Assembly 3 3 Tables 2 1 Typical TI Plug N Play Platform Jumper and Switch Settings for the TPA2008D2 2 1 2 2 Platform Jumper and Switch Settings for the TPA2008D2 2 3 3 1 TPA2008D2 EVM ...

Page 9: ...2 stereo filter free class D audio amplifier evaluation module SLOP392 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 TPA2008D2 EVM Specifications 1 4 Chapter 1 ...

Page 10: ...e 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 ...

Page 11: ...mall number of other parts mounted on a circuit board that measures approximately 2 1 4 inches by 1 1 2 inches Figure 1 1 The TI TPA2008D2 Audio Amplifier EVM Without Output Filter Top View Figure 1 2 The TI TPA2008D2 Audio Amplifier EVM Without Output Filter Bottom View Single in line header pins extend from the underside of the module circuit board to allow the EVM to be plugged into the TI plug...

Page 12: ...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 TPA2008D2 EVM Specifications Supply voltage range VDD 4 5...

Page 13: ...sting circuits or equipment The platform switch and jumper settings shown in Table 2 1 are typical for the TPA2008D2 EVM and causes the TPA2008D2 to shut down when a plug is in serted into platform headphone jack J10 Table 2 1 Typical TI Plug N Play Platform Jumper and Switch Settings for the TPA2008D2 EVM JP4 JP5 JP6 JP7 JP8 S2 S3 P N P Platform X ON Mute X Lo Note 2 U5 Notes 1 ON Jumper installe...

Page 14: ... or 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 J4 J5 AC DC In VCC In J1 DC SOURCE LED1 VCC LED2 VDD R2 JP5 IDD B1 U6 POWER SUPPLY U3 U4 U5 U1 U2 Audio Power Amps On Off Conditioning S2 J7 J8 Right Out Left Out JP6 Mode Mute Spk U2 U4 JP8 J9 Left...

Page 15: ...itch S3 to U5 Table 2 2 Platform Jumper and Switch Settings for the TPA2008D2 EVM JP4 JP5 JP6 JP7 JP8 S2 S3 P N P Platform X ON Mute X Lo Note 2 U5 Notes 1 ON Jumper installed OFF Jumper NOT Installed 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 7 Select and connect the power supply ensure po...

Page 16: ...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 should light indicating the presence of VDD and the evaluation modules installed on the platform should begin operation 14 Adjust the signal source level and potentiometer R3 as needed 2 3 Quick Start List for Stand Alone F...

Page 17: ... LIN pins and the negative lead to the RIN LIN pins 5 Connect speakers to the left and right outputs Evaluation module preparations 6 Use potentiometer R3 to set the volume Turning R3 in the clockwise direction will increase the volume See Table 3 1 for voltage levels on the VOLUME pin and corresponding gain settings 7 If using an external DAC adjust R3 to the center position by placing a DMM acro...

Page 18: ...Quick Start List for Stand Alone 2 6 Operation The EVM should begin operation 10 Adjust the signal source level and potentiometer R3 as needed ...

Page 19: ...as high as 2 A Any power supply connected to the platform should be capable of providing 2 A of current to avoid clipping of the output signal during peaks Current consumption driving speakers at normal listening levels is typically 0 1 A or less The platform is equipped with overvoltage and reverse polarity supply voltage input protection in the form of fused crowbar circuits VDD voltage applied ...

Page 20: ...2 8 Operation ...

Page 21: ...s chapter contains the EVM schematic PCB layers parts list and dc volume control table Topic Page 3 1 TPA2008D2 EVM Schematic 3 2 3 2 TPA2008D2 EVM PCB Layers 3 3 3 3 TPA2008D2 EVM Parts LIst 3 4 3 4 DC Volume Table 3 5 Chapter 3 ...

Page 22: ...7 16 15 14 13 LINN LINP SHUTDOWN PVDD LOUTP PGND PGND LOUTN PVDD COSC ROSC AGND RINN RINP BYPASS PVDD ROUTP PGND PGND ROUTN PVDD NC VOLUME VDD R2 120 kΩ C6 220 pF C11 10 µF C7 1 µF S1 SHUTDOWN R1 120 kΩ C3 0 1 µF C4 0 1 µF SHUTDOWN LIN LIN VDD LOUT GND LOUT C8 1 µF R3 50 kΩ CW CCW C10 1 µF C9 1 µF C5 1 µF C2 0 1 µF C1 0 1 µF GND VDD VOLUME VDD ROUT GND ROUT RIN RIN U1 TPA2008D2 ...

Page 23: ...2008D2 EVM PCB Layers Figure 3 2 and Figure 3 3 depict the TPA2008D2 EVM PCB layers These drawings are not to scale Gerber plots can be obtained from any TI sales office Figure 3 2 TPA2008D2 EVM Top Assembly Figure 3 3 TPA2008D2 EVM Bottom Assembly ...

Page 24: ...6 V 603 1 Yageo America 06032R221K9B20D Digi Key 311 1077 1 ND C11 Capacitor 10 µF 80 20 Y5V 16 V 1210 1 Murata GRM32NF51C106ZA01L R1 R2 Resistor 120 kΩ 1 16 W 5 603 2 Panasonic ERJ 3GEYJ124V Digi Key P120K6CT ND R3 Potentiometer 50 kΩ Cermet ST SL thru hole 1 Bourns 3362P 1 503 Digi Key 3362P 1 503 ND S1 Switch momentary pushbutton 12 V 50 mA SMD 1 Panasonic EVQ PPBA25 Digi Key P8086SCT ND Header...

Page 25: ...1 19 1 09 23 1 19 1 3 1 32 1 2 21 1 31 1 41 1 42 1 33 19 1 42 1 52 1 53 1 43 17 1 53 1 63 1 63 1 54 15 1 64 1 75 1 75 1 64 13 1 76 1 85 1 84 1 76 12 1 86 1 96 1 96 1 85 10 1 97 2 07 2 09 1 97 8 2 08 2 18 2 19 2 1 6 2 19 2 3 2 33 2 2 4 2 31 2 4 2 43 2 34 2 2 41 2 52 2 49 2 44 0 2 53 2 63 2 62 2 5 2 2 64 2 75 2 75 2 63 4 2 76 2 87 2 85 2 76 6 2 88 2 98 2 99 2 86 8 2 99 3 1 3 12 3 10 3 11 3 22 3 25 3...

Page 26: ...3 6 Reference ...

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