Feature Highlights

1.1 Feature Highlights

The TI TPA0243 audio amplifier evaluation module and the TI plug-n-play audio amplifier evaluation platform include the following features:

-TPA0243 mono 2-W audio power amplifier with stereo headphone drive evaluation module

J Single channel, bridge-tied load (BTL) or dual-channel single-ended operation

J Internal summing of left and right channels to generate mono signal

J 2 W output power into 4 Ω at 5 V, BTL

J 0.6 W output power into 4 Ω at 3 V, BTL

J Low current consumption in shutdown mode (1 A)

J Stereo headphone drive

-Quick and easy configuration with the TI plug-n-play audio amplifier evaluation platform

J Evaluation module 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 module control options

J Switches on the platform route signals

J Platform provides quick and easy audio input and output connections

-Platform power options

J External 5-V ± 15-V DC VCC supply inputs

J External regulated VDD supply input

J Socket for onboard 5 V/3.3 V VDD voltage regulator EVM

J Onboard overvoltage and reverse polarity power protection

-Platform audio input and output connections

J Left and right RCA phono jack inputs

J Miniature stereo phone jack input

J Mono (right) RCA phono jack output

J Mono (right) compression speaker terminal output

J Miniature stereo headphone jack output

1-2

Introduction

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Texas Instruments TPA0243 manual Feature Highlights

TPA0243 specifications

The Texas Instruments TPA0243 is an advanced class-D audio amplifier that is recognized for its high-performance capabilities and compact design. Specifically designed for portable applications, the TPA0243 delivers impressive sound quality while maximizing energy efficiency. Its compact footprint makes it suitable for a variety of consumer electronics, including mobile devices, tablets, and laptops.

One of the standout features of the TPA0243 is its ability to output up to 3.2 watts of continuous power per channel into a 4-ohm load. This level of power is sufficient for driving small speakers or external audio systems, making it an ideal choice for portable speaker designs. The amplifier also supports operation with a supply voltage range of 2.5V to 5.5V, further enhancing its versatility in different applications.

The TPA0243 utilizes sophisticated technologies to ensure high fidelity audio performance. It includes integrated thermal overload protection and short-circuit protection, which safeguards the device from damage under adverse conditions. Furthermore, the low standby current draw of 2 µA contributes to longer battery life in portable applications, making it energy-efficient.

In addition to its robust performance, the amplifier features low total harmonic distortion (THD) and a signal-to-noise ratio (SNR) of up to 90 dB, ensuring clear audio reproduction. The TPA0243 has a high power supply rejection ratio (PSRR), which helps minimize the impact of power supply variations on audio performance.

The amplifier also supports a variety of output configurations, including stereo and mono options, offering design flexibility for engineers. Its built-in gain setting allows for easy integration into diverse applications, ensuring that it can meet the demands of various output requirements.

Overall, the Texas Instruments TPA0243 stands out as a reliable and versatile audio amplifier, combining compactness with robust performance features. With its integration of advanced technologies, efficient power consumption, and superior sound quality, it is an optimal choice for designers looking to enhance the audio experience in portable electronic devices.