Texas Instruments TPA2008D2 Quick Start List for Stand-Alone, Evaluation Module Preparations

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Quick Start List for Stand-Alone

-Evaluation Module Preparations

11)Use potentiometer R3 to set the volume. Turning R3 in the clockwise direction will increase the volume. See Table 3–1 for voltage levels on the VOLUME pin and corresponding gain settings.

12)If using an external DAC, adjust R3 to the center position by placing a

DMM across the VOLUME pin and ground and adjusting the potentiometer until 25 kΩ is measured across the leads. Apply the external source to the VOLUME pin.

Figure 2–2. Module Preparation

12

- Power Up

13)Verify correct voltage and input polarity and set the external power supply

to ON. If VCC and an on-board regulator EVM are used to provide VDD, set platform power switch S1 to ON.

Platform LED2 should light indicating the presence of VDD, and the evaluation modules installed on the platform should begin operation.

14)Adjust the signal source level and potentiometer R3 as needed.

2.3Quick Start List for Stand-Alone

Follow these steps to use the TPA2008D2 EVM stand-alone or when connecting it into existing circuits or equipment. Connections to the TPA2008D2 module header pins can be made via individual sockets, wire-wrapping, or soldering to the pins, either on the top or the bottom of the module circuit board. Numbered callouts for selected steps are shown in Figure 2–3.

2-4

Operation

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Contents User’s Guide Important Notice EVM Important Notice EVM Warnings and Restrictions Preface Information About Cautions and WarningsRelated Documentation From Texas Instruments Contents Figures TablesIntroduction Feature Highlights Description TPA2008D2 EVM Specifications To 5.5Operation EVM JP4 JP5 JP6 JP7 JP8Precautions Supply PowerQuick Start List for Platform Platform preparationsQuick Start List for Stand-Alone Evaluation Module PreparationsQuick Start for Stand-Alone Operation Power Requirements Operation Reference TPA2008D2 EVM Schematic TPA2008D2 Filter-Free Class-D EVM Schematic DiagramTPA2008D2 EVM Top Assembly TPA2008D2 EVM PCB LayersTPA2008D2 EVM Parts List TPA2008D2 EVM Parts ListDC Volume Table DC Volume ControlReference

TPA2008D2 specifications

The Texas Instruments TPA2008D2 is a highly efficient, integrated audio amplifier designed to meet the demands of a variety of audio applications. This device is particularly well-suited for portable electronic devices, such as smartphones, tablets, and portable speakers, where space and power efficiency are critical considerations.

One of the standout features of the TPA2008D2 is its Class-D architecture, which allows for greater efficiency compared to traditional Class-AB amplifiers. With a maximum output power of up to 3.2 W per channel when operating from a 5 V power supply, it delivers high-quality audio performance while minimizing heat generation. This efficiency is crucial for battery-operated devices, as it prolongs battery life while providing ample power for driving speakers.

The TPA2008D2 also boasts a low quiescent current, which further enhances its power efficiency. The device operates with a wide supply voltage range, from 2.5 V to 5.5 V, making it highly versatile for various applications. Its small size and low profile package make it easy to integrate into compact designs, allowing manufacturers to create sleek products without compromising on audio quality.

In addition to its impressive power efficiency, the TPA2008D2 features built-in protections, including over-temperature protection and short-circuit protection. These safety features provide reliability and longevity, ensuring that the device can withstand varying operating conditions without failure.

Another notable technology employed in the TPA2008D2 is its advanced feedback mechanism, which ensures optimal performance across various loads and helps maintain audio clarity and fidelity. The amplifier supports a variety of input types, providing flexibility for design engineers when integrating it into different systems.

The design of the TPA2008D2 includes differential inputs, which help to eliminate noise and improve the overall sound quality. The inclusion of a gain setting allows users to customize the amplifier to suit specific application requirements, making it an adaptable solution for designers.

In summary, the Texas Instruments TPA2008D2 is a feature-rich audio amplifier that combines power efficiency, compact size, and reliability, making it a perfect choice for portable audio applications. With its Class-D design, advanced protection features, and flexibility in input and gain options, it continues to be a favored solution among audio designers seeking high performance in a small package.
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