Tiny, Low-Cost, PCM Class D Amplifier with Class AB Performance
The MAX98357AETE+T is a highly integrated digital input Class-D audio amplifier designed to convert digital audio streams directly into high-efficiency speaker output signals. It features an integrated digital-to-analog conversion stage and Class-D output driver, eliminating the need for an external DAC and significantly simplifying audio system design.
The device accepts digital audio data through a standard I²S interface and delivers high-quality audio output suitable for portable electronics, smart speakers, embedded systems, Internet of Things devices, multimedia products, and consumer audio equipment. Its high-efficiency architecture minimizes power dissipation while maintaining excellent audio performance, making it particularly suitable for battery-powered applications.
The MAX98357AETE+T incorporates advanced audio processing capabilities, low electromagnetic interference characteristics, and integrated protection features to ensure reliable operation in compact embedded audio designs.
Features
Digital input Class-D audio amplifier
Integrated digital-to-analog conversion functionality
Direct I²S audio interface support
High-efficiency power amplification architecture
Filterless output design
Compact surface-mount package
Low electromagnetic interference operation
Integrated click-and-pop suppression
Low power consumption
High audio fidelity performance
Simplified external component requirements
Integrated thermal protection
Short-circuit protection capability
Suitable for mono speaker applications
Optimized for embedded audio systems
Electrical Characteristics
Digital audio input architecture
Class-D switching amplifier topology
High-efficiency power conversion
Low distortion audio reproduction
Wide operating supply range
Low standby power consumption
Direct speaker drive capability
Integrated audio signal processing functions
Applications
Smart speakers
Embedded audio systems
Internet of Things devices
Portable electronics
Voice-enabled products
Multimedia equipment
Consumer audio devices
Wireless audio products
Home automation systems
Educational and development platforms
Battery-powered audio applications
Human-machine interface systems
Package Information
TQFN surface-mount package
Compact footprint for space-constrained designs
Suitable for automated PCB assembly
Thermally optimized package construction
High-density electronic product integration
