LM4818MX/NOPB

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Audio amplifiers are an essential part of any audio system. They boost the signal from the sound source and make it louder, allowing the sound to reach a higher volume and be heard more clearly. The LM4818MX/NOPB is a high-performance power audio amplifier from Texas Instruments. It is designed for portable applications such as laptop speakers, mobile phones, and tablet computers. This amplifier is capable of delivering up to 1.4 W of output power and can drive up to 10 Vrms using a single supply voltage. It features a low supply current and a low distortion audio solution.

The LM4818MX/NOPB amplifies incoming audio signals and can drive loads up to 1.5 ohm. It has an output bias generator and a low negative offset voltage that ensure high signal fidelity and low distortion. This amplifier is designed to be robust and will not be affected by thermal shutdown. It has a high slew rate of 1000V/μs and can be operated at low frequencies, making it ideal for use in low-power portable applications.

The LM4818MX/NOPB has three modes of operation – normal, equalization and boost. In normal mode, the amplifier provides a linear signal transfer with low noise and distortion. The equalization mode boosts the low frequencies, providing a richer sound. The boost mode provides an additional 6 dB of gain for extra loudness. This amplifier offers excellent dynamic range and has low noise for clear audio reproduction. It also features two Popguard protection circuits that protect the output from transients, such as head-bobble.

The LM4818MX/NOPB application field is mainly used in portable audio applications such as mobile phones, laptop speakers, and tablet computers. The amplifier can also be used in low-power appliances such as audio amplifiers, Bluetooth wireless devices, and other audio systems. For example, this amplifier can be used in home theater systems to provide a clear and powerful sound. The LM4818MX/NOPB is also an ideal choice for personal audio systems, as it has a low noise level and can provide up to 1.4 W of output power.

The LM4818MX/NOPB working principle begins with an incoming audio signal which is amplified by the input stage and filtered before being sent to the power stage. Here, the signal is amplified further before being sent to the output. The amplifier features a low noise level, low distortion, and high fidelity. The output is protected from transients by two independent Popguard protection circuits.

The LM4818MX/NOPB offers a robust and powerful sound solution for portable audio applications. It offers a low noise level and can drive loads up to 1.5 ohm. The amplifier has three modes of operation – normal, equalization, and boost – and it can provide up to 1.4 W of output power. It also features two Popguard protection circuits that protect the output from transients. The LM4818MX/NOPB is an ideal choice for portable audio applications such as laptop speakers, mobile phones, and tablet computers.

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