Maxim Integrated MAX9728AEUD Overview

The MAX9728AEUD from Maxim Integrated is a high-efficiency, Class D audio amplifier designed to provide premium sound quality for portable applications. This compact and powerful amplifier is perfect for a wide range of products, from mobile phones to personal media players, where space is at a premium and battery life is of utmost importance.

Key Features

• High Efficiency: The MAX9728AEUD operates with a high efficiency of up to 92%, which minimizes heat generation and extends battery life in portable devices.
• Output Power: It can deliver 2.4W of continuous output power into a 4Ω load with less than 1% THD+N, ensuring loud and clear audio performance.
• Low EMI: The device is designed with spread-spectrum modulation, which reduces electromagnetic interference (EMI), making it easier to meet regulatory requirements.
• Compact Size: Housed in a small, 16-pin TSSOP package, the MAX9728AEUD saves valuable board space in space-constrained applications.
• Comprehensive Protection: It includes built-in features such as over-temperature protection, under-voltage lockout, and click-and-pop suppression to enhance product reliability and user experience.

Technical Specifications

• Supply Voltage Range: 2.7V to 5.5V
• Gain: Configurable through external gain-setting resistors
• Low Quiescent Current: Optimizes battery life for portable applications
• Fully Differential Inputs: Reduces common-mode noise and improves sound quality
• Pin-Compatible with the MAX9736B for easy design migration

Applications

The MAX9728AEUD's versatility makes it an ideal choice for a variety of audio applications, including:

• Portable Media Players
• Mobile Phones
• Notebook Computers
• Portable Gaming Devices
• GPS Units

With its combination of high efficiency, powerful output, and compact form factor, the MAX9728AEUD from Maxim Integrated stands out as a leading solution for designers looking to enhance the audio capabilities of their portable devices without compromising on space or battery life.