Texas Instruments TPA0202 manual ±1. The TI Plug-N-Play Audio Amplifier Evaluation Platform

Page 18

Precautions

3.1 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 on-board 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 Ð damage to the EVM board, the platform, or both may result.

Figure 3±1. The TI Plug-N-Play Audio Amplifier Evaluation Platform

Power Input

In +

VCC(J1) DC SOURCE J1 VCC

AC/DC In

D4 J2

D3

JP1

 

JP2

 

JP3

 

 

F1

 

 

C1+

Off

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(J2)

AC/DC

Batt

 

 

VR1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Pwr

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

D2

D1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

On

ICC

 

S1

JP4

 

B1

 

IDD

JP5

SUPPLY

POWER

 

 

VR2

U6

F2

DC

 

 

 

 

Power

 

 

 

 

In/Out

 

 

 

 

+

 

 

 

 

J6 VDD In/Out

Audio Input

 

 

Right In

J3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Stereo In

J4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Left In

J5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TEXAS INSTRUMENTS 1997

LED1 VCC

R1

 

Signal Conditioning

 

 

U1

****CAUTION****

Do not insert or remove EVM boards with power applied

Plug-N-Play Audio Amplifier

Evaluation Platform

SLOP097 Rev. C.1

 

Audio

 

 

Power

 

 

Amps

 

S2

Off

U3

Conditioning

On

U4

U5

TP1

GND

R2

 

LED2 VDD

 

 

J7

 

 

 

 

Right Out

 

 

 

 

 

 

J8

 

 

 

 

 

 

+

 

 

 

 

 

Right Out

 

U2

 

 

 

 

±

 

 

 

 

 

 

+

 

 

 

 

 

Left Out

 

 

JP6

Mode

±

 

 

Mute

 

 

 

 

U2-U4 U5

HP(U5)

Polarity

Spk(U2-U4)

 

J9

JP7

JP8

 

 

 

Lo

 

 

 

 

 

Hi

 

 

Left Out

 

 

 

 

 

 

 

 

 

 

 

Stereo

 

 

+

 

C3

 

 

S3 HP Source

+

C2

J10

R3

HP Out

 

R4 R5

Speaker

Output

Headphone Output

3-2

Details

Image 18
Contents Users Guide Important Notice Preface Related Documentation From Texas InstrumentsIf You Need Assistance Contents Figures TablesIntroduction Feature Highlights Description ±1. The TI TPA0202 Audio Amplifier Evaluation ModuleTPA0202 EVM Specifications Quick Start EVM JP6 JP7 JP8Precautions Audio InputQuick Start List for Platform Platform preparations±4. Typical TPA0202 EVM Jumper Settings Quick Start List for Stand-Alone ±3. Quick Start Module MapControl Inputs Details ±1. The TI Plug-N-Play Audio Amplifier Evaluation Platform TPA0202 Audio Power Amplifier Evaluation Module ±2. TPA0202 EVM±3. TPA0202 EVM Schematic Diagram 1 TPA0202 Audio Amplifier ICDepop Circuitry BTL OperationSIngle-Ended Operation Inputs and GainInstalling and Removing EVM Boards EVM InsertionEVM Removal 2 TPA0202 Module Jumper Settings and Switches ±5. TPA0202 EVM Jumpers and Switches2.1 S1 Ð Shutdown Jumper 2.2 S2 Ð Mute Switch2.4 S4 Ð Output Mode Jumper 2.3 S3 Ð Input Select Jumper2.5 S5 Ð VDD Bridge Jumper 2.7 S7 Ð SE Output Mode Switch2.8 S8 Ð Junction Temperature Measurement Jumper 2.6 S6 Ð Autosense JumperSignal Routing Signal ConditioningHeadphone Output Jack Headphone Jack Control Signals Mute/ModeMute/Mode Select JP6 Mute/Mode Polarity Select JP8Power Requirements Inputs and Outputs InputsOutputs Using The TPA0202 EVM Stand-Alone 1 TPA0202 EVM Connected for BTL Output2 TPA0202 EVM Connected for Single-Ended Output ±10. TPA0202 EVM Connected for Stereo Single-Ended OutputTPA0202 Audio Power Amplifier Evaluation Module Parts List ±1. TPA0202 EVM Parts List

TPA0202 specifications

The Texas Instruments TPA0202 is a high-performance Class-D audio amplifier designed for a variety of portable audio applications. Renowned for its efficiency and sound quality, the TPA0202 is an ideal choice for battery-operated devices such as mobile phones, tablet computers, and other handheld devices. With the continuous push for better audio experiences in compact formats, the TPA0202 stands out with its impressive specifications and features.

One of the key characteristics of the TPA0202 is its power efficiency. Operating at a high efficiency rate of up to 90%, this Class-D amplifier minimizes heat generation, allowing it to deliver more power to the audio output while extending battery life. This efficiency is especially crucial for portable devices, where battery performance is a key consideration.

The TPA0202 supports an output power of 2 watts per channel into 4 ohms, making it capable of driving small speakers or headphones with excellent sound quality. The device features a built-in differential input stage that enhances noise immunity, thereby ensuring cleaner audio reproduction. It also supports a wide supply voltage range from 3V to 5.5V, contributing to its versatility in different applications.

In terms of audio quality, the TPA0202 boasts low total harmonic distortion (THD) and exceptional linearity, resulting in rich, clear audio output. Additionally, it comes equipped with selectable gain settings, allowing designers to tailor the amplifier to various output requirements and system designs.

The amplifier also integrates various protection features, including thermal shutdown, short-circuit protection, and undervoltage detection, ensuring robust operation under different conditions. The TPA0202 is also simple to implement in designs, with a minimal external component requirement, further enhancing its appeal to engineers seeking quick and efficient solutions for audio amplification needs.

Moreover, the compact package size of the TPA0202 allows for easy integration into space-constrained designs. With its combination of high efficiency, excellent audio quality, and protective features, the Texas Instruments TPA0202 continues to be a compelling choice for developers looking to enhance audio performance in portable and battery-operated devices. Whether for consumer electronics or in more specialized applications, the TPA0202 delivers reliable and impressive sound amplification, making it a go-to component for modern audio solutions.