LM4995TMX/NOPB

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The LM4995TMX/NOPB audio amplifier is a hi-fi audio system amplifier typically used in a 2.2W stereo application. This amplifier provides both low noise and high performance that is better suited for an audio applications that requires both quality and low power. This amplifier features thermal protection, which means it can be safely used in the most demanding applications. It has a full complement of distinct features that make it an ideal choice for any audio application that requires fidelity and consistent performance.

Features

The LM4995TMX/NOPB audio amplifier features an adjustable low-noise gain range from 0dB to 8dB (relative to 1kHz). It also features a maximum signal-to-noise ratio of 75dB at 1W of output power. Additionally, it is capable of driving 2.2W of continuous average output power with a signal-to-noise ratio of >72dB.

Applications

The LM4995TMX/NOPB audio amplifier is often used in audiophile applications that require both low-power usage and high-fidelity sound. It is commonly used for sound reinforcement in concerts, for studio monitoring in recording and live broadcasts, and in audio systems that use speakers with low sensitivity input stages. Additionally, it can be used in home theater systems, multimedia applications, AV systems, and digital recording.

Working Principle

The LM4995TMX/NOPB audio amplifier works on the principle of varying the amplification gain of the signal to account for the variations in sound level present in a signal source. By doing this, the amplifier is able to keep the overall sound level consistent. Additionally, it works to reduce the noise added to the signal, as it is able to better distinguish between noise and the desired signal.

The LM4995TMX/NOPB amplifier uses an audio transconductance circuit in order to achieve its low-noise and high-fidelity capabilities. This circuit works by adjusting the gain within a range of extreme amplification to low levels of amplification. The transconductance circuit uses a series of transistors and resistors to achieve these gain levels and to keep the signal-to-noise ratio consistent.

In conclusion, the LM4995TMX/NOPB audio amplifier is an excellent choice for any application that requires a low-noise amplifier with a high fidelity and low power usage. It offers a wide range of features such as thermal protection, adjustable low-noise gain, and maximum signal-to-noise ratio. Furthermore, it uses a transconductance circuit in order to adjust the gain of the signal and to reduce noise.

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