MAX9752AETI+

Audio Amplifiers Overview

The MAX9752AETI+ is a stereo Class D audio power amplifier with an integrated DirectDrive headphone amplifier. It operates from a single 4.5V to 5.5V supply for the speaker section and 3V to 5.5V for the headphone section. The device delivers 2.2W per channel into a 4Ω load and provides 62mW into a 16Ω headphone load. It features analog volume control, a BEEP input, logic-selectable gain, and a headphone sense input. The component is housed in a 28-pin TQFN package.

Audio Amplifiers Feature Summary

• Integrates a high-efficiency filterless Class D stereo speaker amplifier with a DirectDrive headphone amplifier.
• Includes analog volume control and a BEEP input with glitch filtering.
• Features industry-leading click-and-pop suppression and ±8kV ESD-protected headphone outputs.
• Utilizes spread-spectrum switching to minimize electromagnetic interference emissions.

Audio Amplifiers Applications

• Notebook PCs
• Flat-Panel TVs
• Tablet PCs
• Portable DVDs

Audio Amplifiers Procurement Notes

Verify the specific suffix ETI against the manufacturer's current ordering guide to confirm pinout and thermal pad specifications. Confirm that the Analog Devices/Maxim Integrated part number matches the required gain configuration for the MAX9752 variant. Ensure the procurement source provides valid RoHS compliance documentation as indicated by the plus sign in the part number.

Audio Amplifiers Selection Notes

Select this component when a combined speaker and headphone solution is required within a compact footprint. The MAX9752AETI+ is appropriate for designs needing analog volume adjustment and audible alert capabilities. Consider the 28-pin TQFN package constraints and the requirement for external charge-pump capacitors for the headphone section during layout.

Audio Amplifiers Part Context

This device belongs to the MAX9752/MAX9753/MAX9754 family of low-EMI stereo Class D amplifiers. It serves as a direct replacement for the MAX9750/MAX9751 series in terms of pin compatibility while offering higher efficiency through Class D architecture. The MAX9752 specifically adds user-controllable volume and beep functions compared to the base model.

Audio Amplifiers Replacement Considerations

The MAX9750/MAX9751 are pin-for-pin compatible Class AB alternatives. Verify if the increased efficiency of the Class D topology meets the system requirements compared to the linear amplifier options.