LV4991M-TLM-H

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Linear amplifiers are electronic devices that amplify a signal, such as an audio signal, to a level suitable for driving a loudspeaker. The LV4991M-TLM-H is an audio linear amplifier designed to provide increased power output while maintaining low noise levels.

Operating Principle

The LV4991M-TLM-H consists of two amplifying stages: a dual-channel, low noise amplifier and a power amplifier. The operation of the low noise amplifier is based on a unique combination of biasing and compensation circuitry, combining high performance with high output current levels. Its low-noise characteristic is due to the fact that the amplifier draws a very small quiescent current from the power supply and has a low voltage drop across the output device.

The power amplifier stage is designed to provide the high amount of output power required to drive the loudspeaker with minimal distortion. It utilizes a complementary pair of power transistors connected in an emitter follower configuration. The emitter followers are connected in push-pull, meaning that the output of each transistor can be switched off and on in a synchronized manner. As a result, the output transistors switch at the same frequency as the input signal, allowing them to generate a larger voltage swing at the output.

Application Field

The LV4991M-TLM-H is specifically designed for professional applications where high sound quality and output power are required. It is used mainly in the professional audio market, such as high end home theater systems, mid a large-scale sound reinforcement systems and multimedia audio applications. Additionally, the amplifier can be used in consumer audio applications such as surround sound systems, portable audio players, and home automation systems.

In addition to its audio applications, the LV4991M-TLM-H is also used in automotive and industrial applications. It is designed to provide a high-quality sound experience and is often used in sound systems for cars and trucks, as well as in factory sound systems and public address systems.

Conclusion

The LV4991M-TLM-H is a linear audio amplifier designed to deliver superior sound quality and output power. Its low-noise characteristic makes it ideal for professional applications, such as high end home theater systems, surround sound systems, and public address systems. Additionally, it is also suitable for automotive and industrial sound systems. The LV4991M-TLM-H is an excellent choice for any application in which exceptional sound quality and output power are desired.

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