Maxim Integrated MAX9789AETJ+ Audio Amplifier IC

The MAX9789AETJ+ from Maxim Integrated is a versatile and high-performance audio amplifier integrated circuit (IC) designed to deliver exceptional sound quality for a wide range of audio applications. This compact yet powerful IC integrates a mono speaker amplifier and a stereo headphone amplifier, making it an ideal solution for portable and space-constrained audio devices.

Key Features:

• Integrated Audio Solution: The MAX9789AETJ+ combines a 2.2W mono speaker amplifier with a stereo headphone amplifier, providing an all-in-one audio amplification solution.
• High Efficiency: Designed with Maxim's proprietary Class G architecture, it offers high efficiency, which is critical for battery-powered devices, helping to extend battery life.
• Low EMI Emission: The IC is engineered to minimize electromagnetic interference (EMI), ensuring that it can be used in sensitive applications without causing disruptions.
• Flexible Power Supply: It operates over a wide 2.7V to 5.5V supply voltage range, accommodating various power sources and system requirements.
• Comprehensive Protection: The MAX9789AETJ+ includes built-in thermal overload protection, short-circuit protection, and a click-and-pop suppression feature to enhance the user experience.

Applications:

The MAX9789AETJ+ is perfectly suited for a variety of applications where high-quality audio amplification is required. These include:

• Mobile phones
• Portable media players
• Notebook computers
• Tablet devices
• Portable gaming systems

Technical Specifications:

• Output Power: 2.2W into 4Ω (Mono Speaker)
• Headphone Amplifier Configuration: Stereo
• THD+N: 0.02% (Typical)
• Package/Case: 32-TQFN-EP
• Operating Temperature Range: -40°C to +85°C

The MAX9789AETJ+ is available in a compact 32-TQFN-EP (Thin Quad Flat No Leads with Exposed Pad) package, which aids in thermal management and saves board space. Its combination of efficiency, performance, and integrated features make it a top choice for designers looking to enhance the audio performance of their products without sacrificing space or power efficiency.