TPA3118D2DAP Integrated Circuits (ICs)

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TPA3118D2DAP is an audio chip which falls in Linear - Amplifiers - Audio category. This chip is a digital-input stereo Class-D audio power amplifier with integrated speaker protection. It is designed to offer great performance and flexibility at very low cost. This chip has been designed for high-fidelity and stereo applications that require high-efficiency sound reproduction with low distortion.

The primary application field for TPA3118D2DAP is in mobile/tablet/notebook audio applications. This chip can be used to power speakers in notebook and other portable audio devices. It is also suitable for powering speakers in TVs, set-top and media players, active speakers, and soundbars. The chip has been designed for operation from a 5 V DC supply and provides up to 3 W of continuous output power (4 W peak) per channel into an 8-Ω load. The amplifier has click-and-pop suppression circuitry and a gain-control switch so that users can select the required gain level. This chip also includes an integrated speaker protection circuit which monitors input signals and shuts down the amplifier when clipping is detected.

The working principle of TPA3118D2DAP chip is based on high-efficiency Class-D audio power amplifier operating in bridge-tied load (BTL) mode. This chip has a built-in pulse-width modulation (PWM) system to eliminate the need for external components such as inductors and capacitors. The PWM switching process is implemented through a modulation technique which allows for fast switching of the speaker output transistors. The chip also features a low-noise preamplifier which is designed to produce an accurate representation of the input signal. The preamplifier is followed by a power amplifier section which is designed to efficiently deliver high-current signals to the speaker load.

The TPA3118D2DAP chip also features an integrated mute terminal that can be used to disable the amplifier output. This feature is useful for eliminating audible pop and clicks from the output when switching between audio sources. Finally, the chip has been designed with over-temperature protection as well as over-current and under/over-voltage protection.

The TPA3118D2DAP chip is a versatile and cost-effective solution for a wide range of audio applications. It can be used to provide high-fidelity sound reproduction with low distortion, and its integrated speaker protection circuit ensures that the amplifier is not damaged when clipping is detected. The chip’s integrated mute terminal makes it easy to switch between audio sources without generating audible pops and clicks. Finally, the chip offers low-cost operation and the flexibility to customize the output power, gain level, and other related parameters.

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