MAX4299EUE+

Audio Special Purpose Overview

The MAX4299EUE+ is a stereo audio system IC designed for single +5V applications, housed in a 16-pin TSSOP package. It integrates a Class AB stereo headphone driver, a microphone amplifier, and a 100mA +3.3V linear regulator. The device operates within a supply voltage range of 4.5V to 5.5V and supports an operating temperature range of -40°C to +85°C. Key electrical characteristics include a typical quiescent current of 10.6mA, 115dB DC power-supply rejection ratio (PSRR), and the ability to drive 22nF capacitive loads. The headphone driver delivers 1.5VRMS into a 10kΩ load with 0.0008% THD+N.

Audio Special Purpose Feature Summary

• Ultra-high PSRR: 115dB at DC and 93dB at 20kHz for operation from noisy digital supplies
• Integrated components: Stereo headphone driver, microphone amplifier, and 100mA +3.3V linear regulator
• Clickless/Popless operation: Features clickless/popless power-up, power-down, mute, and unmute functions
• PC99 compliance: Delivers better than 1VRMS into 16Ω and 1.5VRMS into 10kΩ with low distortion

Audio Special Purpose Applications

• Notebook and desktop audio systems
• Hands-free headsets
• USB audio peripherals and IP telephones
• Wireless internet devices and MP3 players/recorders

Audio Special Purpose Procurement Notes

Verify the component matches the specific 16-TSSOP package and E-grade temperature rating (-40°C to +85°C). Confirm that the integrated +3.3V linear regulator meets the required output current specifications for the target application. Ensure compatibility with single +5V supply rails and check for any necessary external bypass capacitors as specified in the datasheet.

Audio Special Purpose Selection Notes

Select the MAX4299EUE+ when board space is limited and high-fidelity audio performance is required in noisy digital environments. This part is suitable for designs needing an integrated solution for headphone driving, microphone amplification, and analog power regulation. Consider the MAX4298 if the microphone amplifier and linear regulator are not needed.

Audio Special Purpose Part Context

The MAX4299 is part of the MAX4298/MAX4299 family of ultra-high PSRR audio system ICs. While the MAX4298 provides only the stereo headphone driver, the MAX4299 adds a microphone preamplifier and a low-dropout regulator. Both devices share the same core driver architecture optimized for PC99 standards and harsh digital power supplies.

Audio Special Purpose Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation.