MAX9702BETI+T

Audio Amplifiers Overview

The MAX9702BETI+T is a stereo audio amplifier combining a Class D speaker stage and a DirectDrive Class AB headphone stage. It delivers up to 1.8W into 4Ω or 1.1W into 8Ω from a 5V supply. The device operates on a single 2.5V to 5.5V supply and features an I²C interface for gain, mode, and mute control. It utilizes spread-spectrum modulation to reduce EMI without external output filters. The component is housed in a 28-pin TQFN-EP (5mm x 5mm) package and functions within an extended temperature range of -40°C to +85°C.

Audio Amplifiers Feature Summary

• Integrates a filterless Class D speaker amplifier with a high-linearity DirectDrive Class AB headphone amplifier.
• Employs spread-spectrum modulation to minimize electromagnetic interference emissions.
• Features an I²C interface for programmable gain, mono/stereo/mute configuration, and low-power shutdown.
• Includes comprehensive protection mechanisms such as short-circuit and thermal-overload safeguards.

Audio Amplifiers Applications

• Cellular phones
• Notebook PCs
• PDAs
• Handheld gaming consoles

Audio Amplifiers Procurement Notes

Verify the specific suffix 'B' against the official datasheet ordering information to confirm the correct I²C slave address assignment. Ensure the procurement documentation explicitly references the lead-free (+) designation and the 28-pin TQFN-EP package code. Cross-reference the manufacturer's part number with authorized distributor catalogs to validate authenticity and current production status.

Audio Amplifiers Selection Notes

Select this component when a single-chip solution is required for both loudspeaker and headphone amplification in space-constrained portable devices. The integrated DirectDrive architecture eliminates the need for bulky DC-blocking capacitors typically required by conventional headphone drivers. The I²C configurability allows for system-level optimization of power consumption and audio performance modes.

Audio Amplifiers Part Context

This device belongs to the MAX9702 family of audio power amplifiers manufactured by Analog Devices Inc./Maxim Integrated. It represents a second-generation spread-spectrum modulation design intended to replace discrete amplifier solutions. The family provides a consolidated approach to managing audio output stages in mobile electronics, reducing bill-of-materials complexity.

Audio Amplifiers Replacement Considerations

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