MAX9703ETJ+

Audio Amplifiers Overview

The MAX9703ETJ+ is a mono Class D audio power amplifier manufactured by Analog Devices Inc./Maxim Integrated. It operates on a single supply voltage ranging from 10V to 25V and delivers up to 15W of continuous output power into an 8Ω load. The device features a fully differential input architecture, comprehensive click-and-pop suppression, and low quiescent current consumption of 14mA typical. It includes short-circuit and thermal-overload protection mechanisms. The component is housed in a 32-pin TQFN package with dimensions of 5mm x 5mm x 0.8mm and is specified for operation within a temperature range of -40°C to +85°C.

Audio Amplifiers Feature Summary

• Filterless Class D architecture eliminates the need for bulky output filters
• Spread-spectrum mode reduces EMI-radiated emissions compared to conventional methods
• Differential inputs minimize common-mode noise interference
• Industry-leading click-and-pop suppression ensures quiet startup and shutdown

Audio Amplifiers Applications

• LCD TVs
• LCD Monitors
• Desktop PCs
• LCD Projectors
• Hands-Free Car Phone Adapters

Audio Amplifiers Procurement Notes

Verify the specific ordering suffix ETJ+ against official manufacturer documentation to confirm the 32-pin TQFN package type and lead-free status. Ensure compatibility with system requirements regarding the 10V to 25V single-supply operation range and the -40°C to +85°C extended operating temperature specifications before integration.

Audio Amplifiers Selection Notes

Select this component for applications requiring high efficiency and minimal board space due to its filterless design. Consider the mono configuration and 15W power capability when driving 8Ω loads. Evaluate the spread-spectrum mode if EMI reduction is critical. Verify that the differential input interface matches the source signal characteristics and that the thermal management strategy accommodates the exposed paddle requirement.

Audio Amplifiers Part Context

This part belongs to the MAX9703/MAX9704 series of filterless, spread-spectrum Class D amplifiers. The MAX9703 variant provides mono amplification, whereas the MAX9704 offers stereo output. Both share similar architectural features but differ in pin configurations and output channel counts. The series is designed to deliver Class AB performance with Class D efficiency, targeting portable and desktop audio systems.

Audio Amplifiers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.