MAX9708ETN+TD

Audio Amplifiers Overview

The MAX9708ETN+TD is a mono/stereo Class D audio power amplifier in a 56-pin TQFN package. It delivers up to 2 x 21W into an 8Ω stereo load and 1 x 42W into a 4Ω mono load, achieving up to 87% efficiency. Operating from a single +10V to +18V supply, it features filterless modulation and spread-spectrum switching to reduce EMI. The device includes fully differential inputs, programmable gain settings (22dB, 25dB, 29.5dB, 36dB), and comprehensive protection against short circuits and thermal overload.

Audio Amplifiers Feature Summary

• Filterless Class D architecture with spread-spectrum modulation for reduced EMI
• Differential input configuration for improved noise immunity
• Integrated click-and-pop suppression and programmable thermal flag
• Synchronization capability via external clock input

Audio Amplifiers Applications

• LCD TVs
• PDP TVs
• Automotive audio systems
• PC/HiFi audio solutions

Audio Amplifiers Procurement Notes

Verify the specific suffix 'TD' against official documentation, as standard listings typically reference 'MAX9708ETN+'. Confirm availability status directly with Analog Devices or authorized distributors, as stock levels fluctuate. Ensure the component meets RoHS compliance requirements for your region before finalizing procurement.

Audio Amplifiers Selection Notes

Select this amplifier for high-power applications requiring efficient heat dissipation without bulky heatsinks. The differential input design is suitable for noisy environments like flat-panel displays. Consider the spread-spectrum mode if EMI reduction is critical. Verify that the system supply voltage falls within the 10V to 18V range for optimal performance.

Audio Amplifiers Part Context

The MAX9708 belongs to Maxim Integrated's Class D amplifier family, designed to combine the high efficiency of switch-mode amplifiers with the sound quality of Class AB designs. It utilizes a unique modulation scheme to eliminate output filters, saving board space and cost. The device is specified for extended industrial temperature ranges, ensuring reliability in demanding consumer and automotive electronics.

Audio Amplifiers Replacement Considerations

Check for pin-compatible alternatives within the same product family if the exact suffix is unavailable. Verify that any substitute supports the required 21W/42W output power and operates within the 10V-18V supply range. Ensure the replacement also offers spread-spectrum modulation if EMI constraints are strict.