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2001

Mixed-Signal Products

TPA701 MSOP Audio Power

Amplifier Evaluation Module

User’s Guide

SLOU026B

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Summary of Contents for TPA701

Page 1: ...2001 Mixed Signal Products TPA701 MSOP Audio Power Amplifier Evaluation Module User s Guide SLOU026B...

Page 2: ...esign TI does not warrant or represent that any license either express or implied is granted under any patent right copyright mask work right or other intellectual property right of TI covering or rel...

Page 3: ...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...

Page 4: ...iv...

Page 5: ...TPA701 MSOP Audio Amplifier Evaluation Module 3 3 3 2 1 TPA701 Audio Amplifier IC 3 4 3 2 2 BTL Operation 3 4 3 2 3 Module Gain 3 4 3 2 4 Shutdown 3 5 3 3 Using The TPA701 MSOP EVM With The Plug N Pla...

Page 6: ...3 3 3 3 TPA701 MSOP EVM Schematic Diagram 3 3 3 4 TPA701 Audio Amplifier IC 3 4 3 5 Platform Signal Routing and Outputs 3 7 3 6 Mute Mode and Polarity Control 3 8 3 7 Typical Headphone Plug 3 10 3 8 T...

Page 7: ...01 MSOP audio amplifier evaluation module SLOP213 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...

Page 8: ...odule 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 m...

Page 9: ...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 The platform has room for a pair of TPA701 MS...

Page 10: ...1 4 Introduction...

Page 11: ...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 TPA701 MSOP EVM They will cause the TPA701 device to shutdow...

Page 12: ...m or both may result Figure 2 1 Quick Start Platform Map 3 1 10 9 8 6b 6b 6a 6b 5 4 6b 2 Signal Conditioning CAUTION Do not insert or remove EVM boards with power applied ICC JP4 F1 VR1 R1 JP3 JP2 JP1...

Page 13: ...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...

Page 14: ...1 MSOP EVM C5 C2 C1 C4 S1 R1 Due to the very small size of the MSOP IC package the standard part number TPA701 is replaced with the code TIABA Power supply 1 Ensure that all external power sources are...

Page 15: ...n and a parts list for the TPA701 MSOP evaluation module Topic Page 3 1 Precautions 3 2 3 2 The TPA701 MSOP Audio Power Amplifier Evaluation Module 3 3 3 3 Using The TPA701 MSOP EVM With The Plug N Pl...

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: ...nput and output power and control connections to the module The module connection pins are on 0 1 inch centers to allow easy use with standard perf board and plug board based prototyping systems Or th...

Page 18: ...ges of each other for increased power BTL operation provides many benefits including quadruple the output power of single ended operation and no need for bulky output coupling capacitors For more info...

Page 19: ...f thumb everything else being equal the module input signal level should be as high as possible without clipping or overloading the TPA701 input and the TPA701 gain should be kept as low as possible 3...

Page 20: ...with the proper orientation Evaluation modules are easily removed from the platform by simply prying them up and lifting them out of their sockets Care must be taken however to prevent bending the pi...

Page 21: ...a shutdown mute control input pin When this input is tied to VDD the TPA701 amplifier IC on the module shuts down and assumes an ultra low power mode When the EVM control input is tied to GND or allo...

Page 22: ...er JP6 to MUTE J To not affect the TPA701 amplifier when a plug is inserted into the headphone jack jumper JP6 to Mode or leave JP6 unjumpered 3 3 3 3 Mute Mode Polarity Select JP8 A second 3 pin jump...

Page 23: ...module 6 V or damage to the IC may result In no case should VDD voltage of the incorrect polarity or in excess of 6 1 V be applied to screw terminals J6 of the platform or the power protection circuit...

Page 24: ...o the edge of the platform output jacks J7 J8 and J9 the OUT lines from the power amplifier sockets are not tied to each other or to platform ground This allows the TPA701 power amplifier EVMs to oper...

Page 25: ...gh current to overcome the pulldown resistors on the modules 20 k 20 k for two EVMs 3 4 1 TPA701 MSOP EVM Connected for BTL Output Figure 3 8 TPA701 MSOP EVM Connected for Stereo BTL Output Audio Inpu...

Page 26: ...GRM39 Y5V105Z10PT C5 Capacitor pad only 0603 0 R1 R2 Resistor 20 k 1 16 W 5 0603 2 Panasonic ERJ 3GSYJ203 Digi Key P20KGCT ND R3 Resistor 39 k 1 16 W 5 0603 1 Panasonic ERJ 3GSYJ393 Digi Key P39KGCT...

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