The MAX9728ATC from Maxim Integrated is a high-performance, low-power, DirectDrive® stereo headphone amplifier that provides a superior audio experience for portable applications. This compact and efficient IC is designed to deliver high-quality sound while minimizing power consumption, making it ideal for battery-powered devices such as smartphones, tablets, portable media players, and laptop computers.

Key Features

• DirectDrive Technology: The MAX9728ATC employs Maxim's proprietary DirectDrive technology, which eliminates the need for bulky DC-blocking capacitors, resulting in a smaller PCB footprint and a simplified design.
• High Efficiency: With its high efficiency, the MAX9728ATC conserves battery life, which is crucial for portable devices. Users can enjoy longer playback time without compromising on sound quality.
• Low Distortion: The amplifier provides low THD+N (Total Harmonic Distortion plus Noise), ensuring a clear and clean audio output that is faithful to the original recording.
• Adjustable Gain: The gain of the MAX9728ATC can be configured through external gain-setting resistors, allowing designers to tailor the audio output to specific requirements.
• Click-and-Pop Suppression: It features an integrated click-and-pop suppression circuitry that minimizes noise during power-up and shutdown transitions, providing a smooth listening experience.

Applications

The MAX9728ATC is versatile and can be used in a wide range of audio applications. Its small package and high-quality audio output make it an excellent choice for:

• Mobile Phones
• Portable Media Players
• Portable Gaming Devices
• Notebook and Ultrabook Computers
• Portable DVD Players

Technical Specifications

• Supply Voltage Range: 2.7V to 5.5V
• Output Power: Delivers up to 130mW per channel into a 16Ω load
• Package: Available in a tiny 12-bump, wafer-level package (WLP) that is just 2mm x 2mm

The MAX9728ATC from Maxim Integrated is a testament to the company's commitment to delivering high-quality audio solutions that meet the needs of today's portable electronic devices. With its impressive set of features, it stands out as a top choice for designers looking to enhance the audio experience in their products.