MAX97220EETE+

Audio Amplifiers Overview

The MAX97220EETE+ is a differential input DirectDrive line driver and headphone amplifier manufactured by Analog Devices/Maxim Integrated. It operates on a single supply voltage ranging from 2.5V to 5.5V. The device delivers an output power of 125mW into a 32-ohm load at 5V, with a THD+N better than 90dB across the audio band and an SNR of 112dB. It features an externally adjustable gain configuration via external resistors and includes click-and-pop suppression. The component is housed in a 16-pin TQFN package.

Audio Amplifiers Feature Summary

• DirectDrive architecture eliminates the need for large DC-blocking capacitors by using an internal charge pump to create a negative rail.
• Fully differential inputs provide improved noise immunity and common-mode rejection compared to single-ended configurations.
• Integrated click-and-pop suppression circuitry prevents audible transients during power-on and shutdown transitions.
• Footprint compatible with the legacy MAX9722 series for simplified board design upgrades.

Audio Amplifiers Applications

• Set-top boxes
• Blu-ray and DVD players
• LCD televisions
• Prosumer audio devices

Audio Amplifiers Procurement Notes

Verify the specific suffix EETE+ corresponds to the external gain setting variant with a 5.5ms turn-on time. Confirm RoHS compliance status through official manufacturer documentation. Ensure the ordering information matches the exact pinout and thermal pad requirements for the TQFN-EP package before finalizing procurement.

Audio Amplifiers Selection Notes

Select this model when external gain adjustment is required rather than fixed internal gain. It is suitable for applications needing fast startup times under 6ms. Verify that the system can accommodate the external feedback and input resistor network necessary for the differential configuration. Ensure the PCB layout supports the exposed thermal pad for adequate heat dissipation.

Audio Amplifiers Part Context

This component belongs to the MAX97220 family of high-fidelity audio amplifiers. It serves as a direct replacement or upgrade path for older designs utilizing the MAX9722, offering improved performance metrics and reduced component count due to the integrated charge pump. The E version specifically targets headphone applications requiring flexible gain settings.

Audio Amplifiers Replacement Considerations

The MAX97220AETE+ and MAX97220BETE+ are part of the same family but differ in gain configuration and turn-on timing. The MAX97220CETE+ and MAX97220DETE+ feature internally fixed +6dB gain. Ensure the selected substitute matches the required gain setting and startup delay specifications for the target application.