Quick Start List for Stand-Alone

2.3 Quick Start List for Stand-Alone

Follow these steps to use the TPA005D12 class-D EVM stand-alone or to connect it into existing circuits or equipment. Connections to the TPA005D12 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.

-Power supply

1)Ensure that all external power sources are set to OFF.

2)Connect an external regulated power supply set to 5 V to the module VDD, VDD2, and GND pins taking care to observe marked polarity. It is only necessary to use the ground pins adjacent to the module power pins.

-Inputs and outputs

3)Ensure that audio signal source level adjustments are set to minimum.

4)Connect the audio source to the module RIN+/RIN± and LIN+/LIN± pins for class-D operation, taking care to observe marked polarity. For single-ended input, the negative input pins (RIN± and LIN±) should be connected to the ground of the audio signal source.

5)Connect a control signal to the module Mute pin, if necessary. The control signal should be high (2 V to 5 V or left floating) for normal operation, or low (tied to ground) to mute the output.

6)Connect a control signal to the module SD pin, if necessary. The control signal should be high (2 V to 5 V or left floating) for normal operation, or low (tied to ground) to shut down the TPA005D12 amplifier IC on the EVM.

Note that the control signals applied to the EVM mute and SD inputs must have sufficient current capability to overcome the 100-kΩpullup resistor on each input. Miniature pushbutton switches on the EVM allow manual shutdown (S2) and manual muting (S1) of the amplifier.

7)Connect a 4-Ω± 8-Ωspeaker to the module Rout+/Rout± pins and another speaker to the Lout+/Lout± pins, taking care to observe marked polarity.

-Power up

8)Verify correct voltage and input polarity and set the external power supply to ON.

The EVM should begin operation.

9) Adjust the signal source level as needed.

2-4

Quick Start

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Texas Instruments TPA005D12 manual Quick Start List for Stand-Alone
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TPA005D12 specifications

The Texas Instruments TPA005D12 is a highly regarded digital audio power amplifier that is engineered for high-performance applications. It is part of TI's TPA series, which is known for its efficient power delivery and superior sound quality. The TPA005D12 is designed to drive passive speakers while ensuring minimal power loss and efficient heat management.

One of the standout features of the TPA005D12 is its ability to provide 5 watts of continuous output power per channel into an 8-ohm load with a low total harmonic distortion (THD) rating. This makes it suitable for use in a variety of audio applications, including computer speakers, soundbars, and portable audio systems. The amplifier operates from a single supply voltage, ranging typically from 4.5V to 14V, allowing for flexible integration into different power supply environments.

The TPA005D12 adopts Class-D amplification technology, which significantly enhances power efficiency compared to traditional linear amplifiers. Class-D amplifiers convert the input audio signal into a series of pulse-width modulated signals, resulting in increased power savings and reduced heat generation. This not only improves the overall energy efficiency but also contributes to a longer operational lifespan for devices utilizing this technology.

Additionally, the TPA005D12 features an integrated thermal and short-circuit protection mechanism, which helps safeguard the amplifier from potential damage due to excessive temperatures or electrical faults. This reliability factor is crucial for manufacturers looking to create robust consumer electronics.

Another important characteristic is its integrated low-noise power supply rejection ratio (PSRR), which helps maintain sound clarity and reduces the impact of power supply noise on audio quality. The TPA005D12 also supports differential input signals, which can improve common-mode noise rejection and further enhance audio performance.

The device is offered in a compact package suitable for space-constrained applications, enabling easy integration into various designs. With a combination of low cost, high efficiency, and excellent audio performance, the Texas Instruments TPA005D12 stands out as a top choice for developers and engineers seeking reliable audio amplification solutions. Whether in home entertainment systems or personal audio devices, the TPA005D12 is designed to deliver exceptional sound quality with a minimal footprint.
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