MAX4299EUE

Audio Special Purpose Overview

The MAX4299EUE is an audio system IC in a 16-pin TSSOP package, designed for single +5V applications. It integrates a stereo headphone driver, a microphone amplifier, and a +3.3V linear regulator capable of 100mA output. The device features ultra-high power-supply rejection (PSRR) of 115dB DC and 93dB at 20kHz, allowing operation from noisy digital supplies. It delivers 1.5VRMS into 10kΩ with 0.0008% THD+N and drives 32Ω loads to 1.2VRMS. Operating temperature range is -40°C to +85°C.

Audio Special Purpose Feature Summary

• Ultra-High PSRR Stereo Headphone Driver
• Microphone Amplifier with 0.005% THD+N
• 100mA, 3.3V Linear Regulator
• Clickless/Popless Power-Up and Mute

Audio Special Purpose Applications

• Notebook and Desktop Audio
• Hands-Free Headsets
• USB Audio Peripherals
• IP Telephones
• MP3 Players/Recorders

Audio Special Purpose Procurement Notes

Verify the specific E suffix indicates the -40°C to +85°C industrial temperature grade. Confirm the 16-TSSOP package dimensions match the design footprint. Ensure the application requires the integrated microphone amplifier and regulator functions provided by this part number.

Audio Special Purpose Selection Notes

Select the MAX4299EUE when board space is limited and the power supply environment is noisy. Choose this over the MAX4298 if the design requires the integrated microphone preamplifier and the 100mA linear regulator. Verify that the 16-pin TSSOP package is suitable for the assembly process.

Audio Special Purpose Part Context

The MAX4299EUE belongs to the MAX4298/MAX4299 family of audio system ICs. While the MAX4298 provides only the stereo headphone driver, the MAX4299 adds the microphone amplifier and linear regulator. Both share the same core driver architecture and PSRR characteristics.

Audio Special Purpose Replacement Considerations

The MAX4298EUE is a compatible substitute if the microphone amplifier and linear regulator are not required in the circuit design.