MAX9702EUI+

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Linear - Amplifiers - Audio

The MAX9702EUI+ is a high-efficiency, low-power, audio amplifier designed to improve the performance of mobile audio systems. It incorporates a highly efficient, low noise, professional audio power amplifier that provides up to 65.5 dB of gain. Additionally, the device utilizes a maximum input power of 1.2 Vrms and a maximum output power of 80 W. Additionally, the device features thermal and over-current protection features.

The device includes a thin dielectric film capacitor, which is integrated into the package and is used to ensure high reliability and power efficiency. The amplifier is also capable of providing a high signal-to-noise ratio of 88 dB. The MAX9702EUI+ is offered in a space-saving, miniature 3 mm × 3 mm BGA package, which ensures a highly efficient installation.

Application fields

The MAX9702EUI+ is an optimal audio device for digital audio systems such as mobile phones, MP3 players and computers. It is also suitable for larger systems like TVs and high-performance audio equipment. Additionally, the device is ideal for applications with high audio power or dynamic range. Furthermore, it is suitable for applications that require low distortion, low-noise and narrow bandwidth.

Working principle

The MAX9702EUI+ consists of four main functional blocks: a power amplifier, an audio preamplifier, an output protection circuit and an input protection circuit. The power amplifier is a voltage gain type of amplifier, which amplifies the input signal by a factor of up to 65.5 dB. The preamp is a frequency-compensating preamplifier, which provides up to 58 dB of gain and helps to maintain the linearity of the signal. An output protection circuit is also included to protect the amplifier from overload conditions and to ensure a safe operation. Furthermore, an input protection circuit is integrated to protect against input signals that may damage the internal circuitry.

In addition to the blocks described above, the device also includes other special features such as thermal protection, over-current protection and output limiter protection. The thermal protection ensures that the device does not overheat and shut down during operation. The over-current protection ensures that the currents within the device do not exceed the safe levels and the output limiter protection helps to prevent distortion.

Overall, the MAX9702EUI+ is a highly efficient, low-power audio amplifier designed for digital audio systems. It is capable of providing high signal-to-noise ratios, low distortion, power efficiency and output power protection. Additionally, the device features a thin dielectric film capacitor, which ensures high reliability and power efficiency. Furthermore, it is offered in a space-saving, miniature 3 mm × 3 mm BGA package, which ensures a highly efficient installation.

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