MAX4299EWP+T

Audio Special Purpose Overview

The MAX4299EWP+T is an audio system IC designed for single +5V applications, featuring a stereo headphone driver, microphone amplifier, and a +3.3V linear regulator. It operates within a supply voltage range of 4.5V to 5.5V and functions across temperatures from -40°C to +85°C. The device delivers ultra-high power-supply rejection (115dB DC, 93dB at 20kHz) and drives 1.5VRMS into 10kΩ with 0.0008% THD+N. Quiescent current is typically 10.6mA. Packaged in a 20-SOIC surface-mount case, it supports clickless/popless mute and power sequencing.

Audio Special Purpose Feature Summary

• Integrated stereo headphone driver, microphone preamplifier, and 100mA 3.3V linear regulator
• Ultra-high PSRR: 115dB DC and 93dB at 20kHz for noisy digital environments
• PC99-compliant output drivers with 0.0008% THD+N into 10kΩ loads
• Clickless/Popless power-up, power-down, and mute functionality

Audio Special Purpose Applications

• Notebook and Desktop Audio Systems
• USB Audio Peripherals and IP Telephones
• Hands-Free Headsets
• Wireless Internet Devices and MP3 Players

Audio Special Purpose Procurement Notes

Verify the package designation matches the 20-SOIC form factor required for this specific part number. Confirm that the '+T' suffix indicates tape-and-reel packaging as specified in the ordering information. Ensure the component meets RoHS compliance standards before integration into final assemblies.

Audio Special Purpose Selection Notes

Select the MAX4299EWP+T when board space is limited and operation occurs in electrically noisy digital environments requiring high PSRR. This device is suitable for designs needing integrated bias generation and regulation. Verify that the 20-pin SOIC footprint aligns with the PCB layout constraints compared to the available TSSOP or µMAX alternatives.

Audio Special Purpose Part Context

This component 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. The EWP variant specifically denotes the extended temperature range (-40°C to +85°C) and the 20-pin wide SOIC package configuration.

Audio Special Purpose Replacement Considerations

The MAX4299EUE serves as a pin-compatible alternative in a 16-pin TSSOP package. The MAX4298 series offers similar driver performance but lacks the integrated microphone amplifier and regulator features found in the MAX4299.