Description

1.2 Description

The TPA6102A2 audio power amplifier evaluation module is a complete, low-power stereo audio power amplifier for high-fidelity line-level output, headphone, and small speaker applications. It consists of the TI TPA6102A2 50-mW stereo audio power amplifier IC in a very small MSOP package, along with a small number of other parts mounted on a circuit board that is approximately one and a quarter inches square (see Figure 1–1).

Figure 1–1. The TI TPA6102A2 Audio Amplifier Evaluation Module

†Due to the very small size of the MSOP IC package, the standard part number TPA6102A2 is replaced with the code TIAJN.

Single in-line header pins are mounted to 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 TPA6102A2 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 hook up.

1.3 TPA6102A2 EVM Specifications

Supply voltage range, VDD

. . . . . 1.6 V to 3.6 V

Supply current, IDD

. . . . . 160 mA, max

Continuous output power, PO: 16 Ω , VDD = 3.3 V

. . . . . . . . . . . 50 mW

Audio input voltage, VI

VDD + 0.3 Vpp, max

Minimum load impedance, RL

. . . . . . . . . . . . . 16 Ω

Introduction 1-3

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Texas Instruments manual Description, TPA6102A2 EVM Specifications
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TPA6102A2 specifications

The Texas Instruments TPA6102A2 is a high-performance audio amplifier designed specifically for driving headphones and providing enhanced audio quality. This device is well-regarded for its ability to deliver superior sound output with a focus on low power consumption, making it an ideal choice for portable audio applications.

One of the main features of the TPA6102A2 is its ability to support a wide supply voltage range, functioning effectively from 2.0 V to 5.5 V. This allows it to be used across various devices, from simple battery-operated systems to more complex multi-voltage applications. Additionally, the amplifier is designed to deliver an output power of up to 50 mW into a 16-ohm load, making it suitable for driving a range of headphones without distortion or loss of audio fidelity.

The TPA6102A2 incorporates advanced technologies, including a unique low-noise architecture that minimizes background interference and enhances signal clarity. This architecture contributes to a high signal-to-noise ratio (SNR) of up to 90 dB, ensuring that users experience clear and crisp audio across various frequency ranges. Furthermore, its total harmonic distortion plus noise (THD+N) is remarkably low, typically around 0.03%, ensuring that audio playback maintains its integrity and high quality.

Another significant characteristic of the TPA6102A2 is its thermal protection and internal short-circuit protection features, which safeguard the device from damage during operation. This reliability enhances the performance of the amplifier in demanding applications, ensuring longevity and consistent operation under varying conditions.

The TPA6102A2 is also designed with a wide range of applications in mind, from mobile phones and tablets to laptops and audio equipment. Its compact package size helps save board space, making it easy to integrate into a variety of designs without compromising performance. Additionally, the amplifier is known for its low quiescent current, which conserves battery life in portable systems, adding to its appeal for manufacturers targeting energy-efficient designs.

In summary, the Texas Instruments TPA6102A2 is a versatile and efficient audio amplifier that combines high-quality sound performance with robust features and compact design. Its specification and suitability for various applications make it a preferred choice for engineers and designers looking to implement superior audio capabilities into their products.
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