MAX9700CETB+T

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The MAX9700CETB+T is a highly efficient two-channel active speaker system amplifier IC classified as part of the Linear - Amplifiers - Audio family. It is tailored for active speaker systems and includes a high-efficiency headphone amplifier with a current-mode I2C-controlled output level and a selectable low-power sleep mode.

The internal amplifier is capable of delivering up to 10W of power into a 4Ω Speaker. Built-in Thermal Shutdown and Short-Circuit Protection make it suitable for the most demanding audio applications. The low noise and distortion make the MAX9700CETB+T the ideal choice for achieving great sounding audio.

The MAX9700CETB+T architecture enables a range of systems-level features. These include:

• Class-D architecture optimized for low power operation
• Dual amplifier outputs for stereo operation
• Advanced thermal protection with temperature sense
• Overcurrent and overvoltage protection
• Differential inputs and single-ended outputs
• Selectable output size to match speaker efficiency

The MAX9700CETB+T application field includes consumer and portable audio, stereo systems, desktop and multimedia speakers, iPod and MP3 docking systems, gaming systems, and active speaker systems. It is also suitable for automotive audio systems.

The working principle of the MAX9700CETB+T is based on the Class-D amplifier architecture.This audio power amplifier uses a pulse-width modulation (PWM) technique to drive the gate of an N-channel enhancement-mode power MOSFET, allowing a very efficient transfer of energy from its one power supply rail to its load. It is a monolithic integrated circuit, with all its components (including the speaker output) contained in a single package. The device is powered by a single power supply, typically one voltage source up to 28-38V.

The MAX9700CETB+T audio amplifier also includes an additional integrated headphone amplifier, that can directly drive headphones with low THD+N and low noise levels even at very high supply voltages. This is made possible due to the current-mode topology used in the headphone amplifier design. The output level of the headphone amplifier is digitally adjustable with a simple I2C interface.

In summary, the MAX9700CETB+T audio amplifier is a highly efficient two-channel active speaker system designed for a variety of applications, including consumer and portable audio, stereo systems, gaming systems, and active speaker systems.It is built with a Class-D architecture optimized for low power operation, and has a selectable output size to match speaker efficiency.The headphone amplifier features a current-mode I2C-controlled output level and a selectable low-power sleep mode.The MAX9700CETB+T is a great choice for achieving great sounding audio in any application.

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