Quick Start List for Platform

2.2 Quick Start List for Platform

Follow these steps when using the TPA6102A2 EVM with the TI plug-n-play audio amplifier evaluation platform (see the platform user’s guide, literature number SLOU011, for additional details). Numbered callouts for selected -steps are shown in Figure 2–1.

Platform preparations

1)Ensure that all external power sources are set to OFF and that the platform power switch S1 is set to OFF.

2)Install a TPA6102A2 module in platform socket U5, taking care to align the module pins correctly.

3)Use switch S2 to select or bypass the signal conditioning EVM (U1).

4)Set control signal polarity jumper JP7 to Lo.

5)Set Hp source switch S3 to U5 to route the output signal to the headphone -jack (J10).

Power supply

6)Select and connect the power supply:

7)Connect an external regulated power supply set to a voltage between 1.6

V and 3.6 V to platform VDD power input connector J6, taking care to ob- serve marked polarity,

or

8)Install a 3-V to 5-V voltage regulator EVM (SLVP097 or equiv.) in platform socket U6. Install a 9-V battery in B1 or connect a 7-V to 12-V power

source to a platform VCC power input J1 or J2 and jumper the appropriate power input (see platform user’s guide). Set jumper JP1 on the SLVP097

-to 3.3-V operation.

Inputs and outputs

9)Ensure that signal source level is set to minimum and that potentiometers R1 and R4 are set to the midpoint.

10)Connect the audio source to left and right RCA phono jacks J3 and J5 or stereo miniature phone jack J4.

-11) Connect 16-to 32-headphones to headphone jack J10.

Power-up

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

to ON. If VCC and an onboard 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.

Quick Start

2-3

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Texas Instruments TPA6102A2 manual Quick Start List for Platform, Platform preparations

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.