LM4838MT/NOPB

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LM4838MT/NOPB is a high-performance, low-noise audio power amplifier with power-saving and advanced features. It is designed for use in portable music players, home audio systems and car stereos. The LM4838MT/NOPB is able to drive high-power speakers with up to 1.4W output power at 5V and 3W at 6.5V power supply. It has a small footprint in order to facilitate easier integration with portable applications. The device is capable of delivering superior audio performance in a wide variety of environments.

The LM4838MT/NOPB application field is mainly used in low power audio signal amplifying. With a power supply voltage range of 4.5V to 6.5V, this application is suitable for use in many different portable devices. It provides a signal-to-noise ratio greater than 98dBA with a total harmonic distortion (THD) at 0.1% maximum. The device is also capable of providing a voltage gain of up to 22dB. Moreover, the device features low quiescent power consumption of less than 10mW, making it suitable for battery-powered applications.

The working principle of the LM4838MT/NOPB is based on the topology of an integrated class D amplifier. It employs a high-efficiency Pulse Width Modulation (PWM) scheme that converts an analog signal into a digital signal. This digital signal is then re-converted back to an analog signal by a low-pass filter. The class D amplifier then amplifies this signal to drive a loudspeaker. Compared to conventional class AB amplifiers, class D amplifiers are able to achieve higher efficiency with less distortion and lower power consumption.

The LM4838MT/NOPB is a highly efficient, audio amplifier capable of delivering superior performance in a variety of portable applications. It features a voltage gain of up to 22 dB, low quiescent power consumption, and a Signal-to-Noise Ratio greater than 98dBA. Additionally, it is designed to use the topology of a class D amplifier, which ensures higher efficiency and lower power consumption than a conventional class AB amplifier. The LM4838MT/NOPB is a excellent choice for low-power audio applications.

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