MAX9790AETJ+T

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The MAX9790AETJ+T is a linear audio amplifier developed by Maxim Integrated Products. This amplifier is designed to operate from a 6V DC to a 20V DC, making it suitable for a wide range of audio applications such as car audio and portable devices. This amplifier delivers an output power of up to 240 watts at 4-ohm impedance and up to 360 watts at 2-ohm impedance. It has a high efficiency of up to 95% and a low noise level of just 0.1W per channel.

The MAX9790AETJ+T amplifier is designed to work with digital and analogue audio signals, allowing it to be used in a wide range of audio-related applications. It also has a low quiescent current of less than 1mA. The device also features thermal protection, short-circuit protection, and over-voltage protection. It is also protected against in-rush current, which ensures that the device does not experience any performance degradation during normal operation.

The MAX9790AETJ+T amplifier employs an analogue two-stage, Class-D amplifier design. The first stage is a differential input stage with differential cross-coupling transistors, where the output of the transconductance stage is converted into a voltage. This voltage is then amplified by an output stage that drives the output transistors. The output stage consists of two complementary high-density transistors that are connected in a push-pull configuration.

The MAX9790AETJ+T features a unique automatic gain control (AGC) circuit that adjusts the gain and input impedance of the amplifier. This circuit is based on a feedback loop that senses the changes in the output signal. This enables the amplifier to have a constant gain, even during high input power levels. The AGC also prevents any distortion from occurring due to over-driving the amplifier, allowing for a continuous full-range response.

The MAX9790AETJ+T is designed to be used in a wide range of audio applications, including car audio systems, home theatre systems and portable devices. It is ideal for driving low-impedance speakers, such as 4-ohm miniature speakers. The device is also suitable for driving passive line-level outputs and consumer electronics.

The MAX9790AETJ+T amplifier is a reliable, high-performance audio amplifier that is suitable for a wide range of audio applications. Its wide range of features, high efficiency and rugged design make it an ideal choice for audiophiles, musicians and audio enthusiasts alike.

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