LM48823TLX/NOPB

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Most of todays audio amplifiers are power amplifiers, which are used in audio systems to provide sufficient power to drive loudspeakers. LM48823TLX/NOPB is a very high efficiency audio amplifier from Texas Instruments. The amplifier has a Class D architecture, which makes it ideal for battery-operated portable products such as mobile phones and DVD players.

The LM48823TLX/NOPB is a single-channel audio amplifier, which uses a patented Class D architecture to deliver high efficiency, very good THD, superior sound quality, low noise, and low power consumption. The amplifier can efficiently drive loads up to 10W into a 4Ω load (using a 5V supply), and can accurately reproduce signals up to 30 kHz. It supports a wide power supply voltage range of 2.25V to 5.5V.

The LM48823TLX/NOPB audio amplifier consists of an input stage, an amplification stage, and an output stage. The input stage is a differential amplifier with programmable gain, and the amplification stage is a closed-loop, fully differential current-feedback amplifier. The output stage is a unity-gain buffered output stage, which drives the load.

The LM48823TLX/NOPB audio amplifier is controlled by an adjustable gain control (AGC) pin. By setting the AGC pin, the user can adjust the gain of the amplifier from 0dB to 6dB in 1dB steps. The AGC pin also has a power-down function, so when the AGC pin is set to the power-down state, the amplifier enters a very low-power mode. In addition, the amplifier also features a thermal shutdown protection circuit, which provides protection against over-temperature conditions.

The LM48823TLX/NOPB audio amplifier is designed for use in mobile phone and DVD players, which require the highest sound quality and high efficiency. The amplifier offers excellent sound quality, low distortion, low power consumption, and robust protection circuits. Moreover, the adjustable gain control makes it easy to adapt to different application requirements.

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