MAX9770ETI+T

Audio Amplifiers Overview

The MAX9770ETI+T is a Class-D audio amplifier manufactured by Analog Devices Inc./Maxim Integrated. It provides 1.2W output into an 8-ohm load and 80mW into two 16-ohm loads. The device operates on a single supply voltage ranging from 2.5V to 5.5V. It features low total harmonic distortion plus noise of 0.1% and delivers an output current of 600mA. The component is housed in a 28-TQFN package with dimensions of 5x5mm and supports operation within a temperature range of -40°C to +85°C.

Audio Amplifiers Feature Summary

• Class-D architecture designed for high efficiency and low electromagnetic interference.
• Integrated pop-suppression circuitry to eliminate audible switching noises during power transitions.
• Includes input multiplexer, mute functionality, and shutdown modes for flexible system control.

Audio Amplifiers Applications

• Portable multimedia devices requiring efficient audio amplification
• Laptop computers utilizing single-supply audio systems
• Consumer electronics with stereo headphone outputs

Audio Amplifiers Procurement Notes

Verify the specific suffix ETI+T against official datasheets to confirm the TQFN-28 package and reel packaging configuration. Ensure compatibility with the required 2.5V to 5.5V operating voltage range. Confirm that the thermal performance meets the design requirements for the intended application environment.

Audio Amplifiers Selection Notes

Select this component when a single-supply Class-D solution is needed for mono or stereo applications. It is suitable for designs prioritizing low EMI and integrated protection features such as short-circuit and thermal shutdown. Verify that the 28-TQFN footprint fits the PCB layout constraints.

Audio Amplifiers Part Context

This part belongs to the MAX9770 series of audio amplifiers. It is distinct from other Maxim audio ICs by its specific Class-D topology and integrated input multiplexer capabilities. The device is designed to replace older linear amplifiers in portable applications to extend battery life while maintaining audio quality.

Audio Amplifiers Replacement Considerations

Check for direct pin-compatible alternatives within the MAX9770 family. Verify if upgraded versions with improved efficiency or different packaging options are available from the manufacturer.