Texas Instruments TPA102 MSOP manual Precautions, Power Input Audio

Page 12

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

Power

Input

8

Audio

Input

2-2

SOURCE

 

6b

 

 

 

 

 

1

DC

JP1

JP2

JP3

F1

 

C1+

Off

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

J1 VCC In +

VCC(J1)

(J2)

AC/DC

Batt

VR1

 

 

Pwr

 

 

 

 

J2 AC/DC In

D3

D2

 

D1

 

 

 

 

 

D4

 

 

 

 

 

 

 

 

 

Right In

J3

 

 

 

 

VCC

LED1

R1

 

 

 

 

 

 

 

 

 

 

 

 

Signal Conditioning

 

Stereo In

J4

 

 

 

 

 

 

U1

 

 

 

 

 

 

 

 

 

 

Left In

J5

 

 

 

 

 

 

 

 

 

 

 

 

 

****CAUTION****

 

 

 

 

 

Do not insert or remove

1997

TEXAS INSTRUMENTS

 

EVM boards with power

 

 

 

applied

 

 

 

 

 

 

 

 

Plug-N-Play Audio Amplifier

Evaluation Platform

SLOP097 Rev. C.1

3

10

 

 

 

6b

 

 

 

 

6b

 

 

 

 

 

 

On

ICC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

S1

JP4

 

 

 

SUPPLY

POWER

 

 

 

 

 

VR2

 

 

 

 

 

 

U6

 

F2

 

 

Power

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DC 6a

 

 

B1

 

 

 

 

 

 

 

 

 

 

 

+

In/Out

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VDD In/Out

J6

 

 

 

IDD

JP5

 

R2

VDD

LED2

 

 

J7

 

 

 

 

 

Power

 

 

 

 

 

Right Out

 

 

 

 

 

Audio

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Amps

 

 

 

 

 

 

 

 

J8 +

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

S2

Off

 

 

U3

 

U2

 

 

 

Out

Right

 

 

 

Speaker

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Conditioning

On

 

 

 

 

 

 

 

 

 

+ Left–

 

 

 

Output

 

 

U4

 

 

JP6

 

 

Out

 

 

 

 

 

 

 

 

 

 

 

 

 

Mode

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Mute

 

 

 

 

 

 

 

 

U5

U5

U2-U4

Polarity

Out

 

 

 

 

 

 

 

 

JP7 HP(U5)

JP8

Spk(U2-U4)

 

 

 

 

 

 

 

 

 

 

 

 

Lo

 

 

J9

 

 

 

 

 

 

 

 

 

 

 

Hi

 

 

 

Left

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Stereo

 

 

 

 

 

 

 

 

 

+

 

C3C2

 

 

 

 

 

Headphone

TP1 GND

 

 

HP Source

S3

+

 

 

 

 

J10

 

Output

 

 

 

HP Out

 

9

 

 

 

 

 

 

R3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R4

 

 

 

 

 

 

R5

 

 

 

 

2

 

5

 

4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Quick Start

Image 12
Contents User’s Guide Important Notice Preface Related Documentation-From Texas InstrumentsFCC Warning Contents Figures TablesIntroduction Features TPA102 Msop EVM Specifications DescriptionIntroduction Quick Start EVM JP6 JP7 JP8Precautions Power Input AudioQuick Start List for Platform Platform preparationsQuick Start List for Stand-Alone Details TI Plug-N-Play Audio Amplifier Evaluation Platform TPA102 Msop Audio Power Amplifier Evaluation Module TPA102 Msop EVM1 TPA102 Audio Amplifier IC TPA102 Amplifier ICModule Gain ShutdownInstalling and Removing EVM Boards EVM InsertionSignal Routing Signal ConditioningShutdown Polarity Control Power Requirements Inputs and Outputs InputsUsing the TPA102 Msop EVM Stand-Alone 1 TPA102 Msop EVM Connected as a Stereo Headphone AmplifierTPA102 Msop EVM Parts List

TPA102 MSOP specifications

The Texas Instruments TPA102 is a highly efficient class-D audio amplifier designed specifically for portable applications, making it an ideal choice for devices like smartphones, tablets, and other battery-operated electronics. One of its standout features is its ability to deliver powerful output while maintaining a small footprint, thanks to its MSOP (Micro Small Outline Package) design. This compact packaging allows designers to implement the TPA102 in space-constrained environments without sacrificing performance.

A key characteristic of the TPA102 is its efficient power consumption. The amplifier is capable of delivering substantial output power with minimal distortion, which is critical for ensuring high-quality audio playback. It supports a wide range of supply voltages, typically from 2.5V to 5.5V, making it versatile for various applications. With a typical output power of 1W into an 8-ohm load, the TPA102 excels in delivering clean audio signal without considerable heat generation, which is particularly beneficial in battery-powered devices where thermal management can be a challenge.

The TPA102 incorporates several innovative technologies that contribute to its performance. One such technology is the elimination of output filter components, which simplifies the design and reduces the overall cost. Additionally, the device features integrated protection mechanisms that prevent overheating and short-circuiting, thereby enhancing reliability. This combination of efficiency and durability makes the TPA102 suitable for rugged and demanding audio applications.

Another impressive aspect of the TPA102 is its low total harmonic distortion (THD), which ensures that the audio signal remains clear and true to the original input. Coupled with an excellent signal-to-noise ratio, the TPA102 is designed to provide an immersive listening experience in various audio setups.

Moreover, the TPA102 supports multiple operating modes, including shutdown mode that significantly reduces power consumption when the device is not in use. This feature is especially beneficial in portable applications where battery life is a crucial consideration.

In summary, the Texas Instruments TPA102 MSOP audio amplifier stands out for its compact size, efficient power consumption, and high-quality audio output. With advanced features and robust protection mechanisms, it is a reliable choice for designers seeking to develop cutting-edge audio solutions in portable devices.