The MAX9720AEUE from Maxim Integrated is a high-performance, DirectDrive® stereo headphone amplifier that delivers exceptional audio quality for a wide range of applications. This compact and efficient device is designed to enhance the listening experience in portable electronic devices such as smartphones, tablets, laptops, and portable media players.

Key Features

• DirectDrive Technology: The MAX9720AEUE employs Maxim's proprietary DirectDrive technology, which eliminates the need for bulky DC-blocking capacitors, resulting in a smaller PCB footprint and improved audio performance.
• High Output Power: Capable of delivering up to 130mW per channel into a 16Ω load, it ensures loud and clear sound even with high-impedance headphones.
• Low Distortion: With its low 0.01% THD+N (Total Harmonic Distortion plus Noise), the amplifier provides a clean and uncolored audio signal, preserving the integrity of the original recording.
• High PSRR: The high Power Supply Rejection Ratio (PSRR) of 75dB at 1kHz minimizes noise and interference from fluctuating power supplies, ensuring a stable listening experience.
• Adjustable Gain: The device features an externally controllable gain setting, allowing for customization to match specific headphone requirements or to compensate for source signal variations.

Applications

The MAX9720AEUE is ideal for a range of audio applications, including:

• Mobile Phones
• Portable Media Players
• Notebook and Desktop Computers
• Portable Gaming Devices

Technical Specifications

The amplifier operates over a wide 2.7V to 5.5V supply voltage range, making it suitable for use with a variety of power sources. It is available in a 16-pin TSSOP package, which is both space-saving and easy to integrate into existing designs. The device also features built-in thermal overload protection, safeguarding it against potential damage from excessive heat.

Conclusion

The MAX9720AEUE from Maxim Integrated stands out as a robust and versatile audio solution that offers superior sound quality, making it an excellent choice for designers looking to enhance the audio capabilities of their electronic products.