MAX98300ETA+T

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The MAX98300ETA+T is a high-efficiency, charge-pump audio power amplifier from Maxim Integrated. This class-D audio power amplifier is optimized for mobile RF and audio applications where high-end audio performance is desired. The MAX98300ETAT delivers up to 2.1W of output power into 4Ω speakers while meeting the lowest levels of distortion and efficiency.

Application field & Working principle:

The MAX98300ETA+T is mainly used in audio circuits. It provides high-efficiency audio amplification for mobile RF and audio applications. By using a class-D architecture, the MAX98300ETA+T achieves up to 97% efficiency. It also features automatic level control (ALC), which prevents audible noise or distortion due to sudden level changes in the input signal. The MAX98300ETA+T is a differential-input amplifier, which allows the amplifier to cancel any common-mode noise present in the signal. It has a wide operating range of 4.2V to 7.5V, making it ideal for low-voltage audio systems. The MAX98300ETA+T also has an output power limiter, which limits its peak output power to a safe level and protects the speakers from damage due to excessive power.

The MAX98300ETA+T uses a low-side current-source output stage and an N-channel MOSFET to achieve high efficiency. It works by converting the analog input signal into a series of pulses, which alternates between positive and negative states. These pulses are then amplified using two N-channel MOSFETs connected in series. The amplified pulses are then converted into an analog signal using a low-pass filter. The output signal is then sent to the speakers, where it is amplified to produce the desired volume level.

In addition to its high-efficiency, the MAX98300ETA+T also features low levels of distortion and low-noise operation. As with most high-efficiency audio amplifiers, the MAX98300ETA+T is optimized for low power applications, making it ideal for low-power, battery-powered audio systems.

Overall, the MAX98300ETA+T is a high-efficiency, low-distortion audio power amplifier. Its low-side current-source output stage and N-channel MOSFET combination provide high efficiency with low levels of distortion and noise. Its wide operating range and ALC make it ideal for low-power, mobile RF and audio applications.

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