LM4990MM/NOPB

LM4990MM/NOPB Application Field and Working Principle

The LM4990MM/NOPB is a compact, low-noise, low-distortion audio amplifier that offers a variety of features for high-end audio systems. As an amplifier for audio applications, the LM4990MM/NOPB provides excellent sound quality and flexibility.

Features of LM4990MM/NOPB

The LM4990MM/NOPB is an audio amplifier with a wide range of features. It has a wide input and output range and can drive applications from 1 to 4 ohms with an output power of up to 60 watts. Its low distortion also contributes to excellent sound quality. This amplifier also has a settling time of 1.5µs, which ensures that it is capable of transient changes with minimal distortion.

The LM4990MM/NOPB runs on a single voltage supply and is capable of operation over wide temperature ranges. It has thermal protection, which can prevent the device from overheating. The amplifier also has a mute function and is able to drive 4 ohm loads without clipping.

Applications of the LM4990MM/NOPB

The LM4990MM/NOPB is an ideal amplifier for both consumer and professional audio applications, such as home theater systems, car audio systems, and stereo equipment. It is also a suitable amplifier for use in public address systems, portable audio/visual equipment, and concert systems.

Working Principle of LM4990MM/NOPB

The LM4990MM/NOPB works by amplifying the input signal to a larger output signal. It is based on the classic inverting amplifier topology, which consists of an input stage, a differential amplifier stage, a buffer stage, and an output stage.

The input stage consists of an input amplifier, which amplifies the input signal to a certain level. The amplified signal is then passed through the differential amplifier stage. This stage adjusts the output level and introduces the gain of the amplifier. The buffer stage then drives the output stage at higher current levels and ensures the output is a stable, low-distortion signal. Finally, the output stage amplifies the signal further and outputs it to the load.

Conclusion

The LM4990MM/NOPB is a low-noise, low-distortion audio amplifier that is suitable for both consumer and professional audio applications. It is based on the inverting amplifier topology and is capable of driving 4 ohm loads without clipping. The LM4990MM/NOPB offers excellent sound quality and performance, and is easy to use.