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TPA152

Audio Power Amplifier

Evaluation Module

User’s Guide

SLOU019

June 1998

Printed on Recycled Paper

Summary of Contents for TPA152

Page 1: ...1998 Mixed Signal Products TPA152 Audio Power Amplifier Evaluation Module User s Guide...

Page 2: ...TPA152 Audio Power Amplifier Evaluation Module User s Guide SLOU019 June 1998 Printed on Recycled Paper...

Page 3: ...ED INTENDED AUTHORIZED OR WARRANTED TO BE SUITABLE FOR USE IN LIFE SUPPORT APPLICATIONS DEVICES OR SYSTEMS OR OTHER CRITICAL APPLICATIONS Inclusion of TI products in such applications is understood to...

Page 4: ...s 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 devic...

Page 5: ...246 Dallas Texas 75266 Order Texas Instruments docu mentation Call the PIC hotline 972 644 5580 Ask questions about product op eration or report suspected prob lems Call the PIC hotline 972 644 5580 R...

Page 6: ...tions 3 2 3 2 The TPA152 Audio Amplifier Evaluation Module 3 3 3 2 1 TPA152 Audio Amplifier IC 3 4 3 2 2 Module Gain 3 5 3 2 3 Shutdown 3 5 3 3 Using The TPA152 EVM With The Plug N Play Evaluation Pla...

Page 7: ...52 EVM 3 3 3 3 TPA152 EVM Schematic Diagram 3 3 3 4 TPA152 Audio Amplifier IC 3 4 3 5 Platform Signal Routing and Outputs 3 7 3 6 Mute Polarity Control 3 8 3 7 Typical Headphone Plug 3 10 3 8 TPA152 E...

Page 8: ...ts TI TPA152 Audio Amplifier Evaluation Module SLOP123 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 9: ...1 2 Introduction...

Page 10: ...tion Platform J Evaluation module is designed to simply plug into the platform auto matically making all signal control and power connections J Platform provides flexible power options J Jumpers on th...

Page 11: ...I 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 single TPA152 evaluation module and is...

Page 12: ...ns and can be wired directly into existing circuits or equipment The platform switch and jumper settings shown in Table 2 1 are typical for the TPA152 EVM and will cause the TPA152 IC to mute when a p...

Page 13: ...rm or both may result Figure 2 1 Quick Start Platform Map 3 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...

Page 14: ...rd 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 betw...

Page 15: ...ure 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 En...

Page 16: ...on Module 3 3 3 2 1 TPA152 Audio Amplifier IC 3 4 3 2 2 Module Gain 3 5 3 2 3 Mute 3 5 3 3 Using The TPA152 EVM With The Plug N Play Evaluation Platform 3 6 3 3 1 Installing and Removing EVM Boards 3...

Page 17: ...m 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 A...

Page 18: ...which automatically makes all the signal input 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...

Page 19: ...tortion levels THD N are below 0 01 into 10 k loads across the audio band 20 Hz to 20 kHz Figure 3 4 Typical applications include portable computers desktop computers personal audio toys games and sim...

Page 20: ...ch application Both the module input signal level and the TPA152 module gain should be adjusted to obtain the lowest overall distortion level for a particular overall gain A quick rule of thumb everyt...

Page 21: ...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 pins 3 3 1 1...

Page 22: ...bypasses signal conditioning 3 3 2 2 Headphone Output Jack Switch S3 is the source select for the stereo headphone output jack J10 The headphone jack is capacitively coupled via 470 F electrolytics an...

Page 23: ...witch that changes the state of a pair of control lines when a plug is inserted or removed Figure 3 6 Each control line is pulled down by a 1 k resistor to ground R4 and R5 The switch in the headphone...

Page 24: ...and reverse polarity supply voltage input protection in the form of fused crowbar circuits VDD voltage applied to platform screw terminals J6 MUST NOT exceed the absolute maximum rating for the TPA15...

Page 25: ...audio output signals from the power amplifiers U2 U4 leave the platform through left and right RCA phono jacks J7 and J9 left and right pairs of compression connectors for stripped speaker wires J8 a...

Page 26: ...t the mute signal applied to the EVM SD pin must be able to supply enough current to overcome the pulldown resistor on the module 20 k 3 4 1 TPA152 EVM Connected as a Stereo Headphone Amplifier Figure...

Page 27: ...1 F 6 3 V 1206 4 Murata GRM42 6Y5V105Z16BL Newark 93F2254 C7 Capacitor 10 F 6 3 V A 1 Panasonic ECS TOJY106R Digi Key PCS1106CT ND C2 C4 Capacitor 5 pF 6 3 V 0805 2 Panasonic ECU V1H050CCN Digi Key P...

Page 28: ...ONDUCTOR PRODUCTS MAY INVOLVE POTENTIAL RISKS OF DEATH PERSONAL INJURY OR SEVERE PROPERTY OR ENVIRONMENTAL DAMAGE CRITICAL APPLICATIONS TI SEMICONDUCTOR PRODUCTS ARE NOT DESIGNED AUTHORIZED OR WARRANT...

Page 29: ...Mouser Electronics Authorized Distributor Click to View Pricing Inventory Delivery Lifecycle Information Texas Instruments TPA152EVM...

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