Description

1.2 Description

The TPA0202 Stereo 2-W Audio Power Amplifier Evaluation Module is a complete, 2-Watt per channel stereo audio power amplifier. It consists of the TI TPA0202 Stereo 2-W Audio Power Amplifier IC along with a small number of other parts mounted on a circuit board that measures approximately 2º inches by 1￿ inches (Figure 1±1).

Figure 1±1. The TI TPA0202 Audio Amplifier Evaluation Module

RHP

C7

R10

RVDD

 

GND

 

R11

ROUT+

 

 

 

+

 

S5

 

 

 

 

 

 

 

 

 

GND

GND

 

 

 

C11

 

 

 

C6

R8

 

 

 

 

S6

RIN

 

 

 

 

 

ROUT±

 

C8

R9

 

S3

 

 

 

 

 

 

HP/L*

GND

 

R7

 

 

 

S4

 

 

 

 

 

C9 C10

 

 

SE/BTL*

 

 

 

 

 

 

 

 

 

 

 

 

 

TPA0202 SAMPLE EVM

 

 

 

 

R12

Lit.# SLOP202

U1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

S8

 

 

 

D1

R13

S7

 

 

 

 

 

 

 

 

 

 

 

R2

 

 

 

 

 

 

 

GND

 

 

C3

R4

C5

 

S2

 

MUTE

 

 

 

C4

 

 

 

 

LIN

C1

R1

 

 

 

 

 

S1

LOUT±

 

 

 

 

 

 

GND

 

 

 

+

 

 

 

 

 

 

 

 

 

 

GND

LHP

 

R3

 

 

 

 

 

C2

 

C12

 

 

 

 

 

 

 

R5

 

LOUT+

 

 

 

LVDD

 

GND

 

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-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 TPA0202 evaluation module and is a convenient vehicle for demonstrating TI's audio power amplifier and related evaluation modules. The EVMs simply plug into the platform, which automatically provides power to the modules, interconnects them 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 ªhook up.º

Introduction 1-3

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Texas Instruments manual Description, ±1. The TI TPA0202 Audio Amplifier Evaluation Module

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.