MAX4299EUE+T

Audio Special Purpose Overview

The MAX4299EUE+T is a single-supply audio system IC designed for +5V applications, housed in a 16-pin TSSOP package. It integrates a stereo headphone driver, a microphone amplifier, and a 100mA 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 parameters include a quiescent current of 10.6mA (typical), a unity-gain bandwidth of 1.3MHz for the driver, and a DC power-supply rejection ratio (PSRR) of 115dB. The output amplifiers deliver 1.5VRMS into a 10kΩ load with 0.0008% THD+N.

Audio Special Purpose Feature Summary

• Integrates a stereo headphone driver, microphone amplifier, and a 100mA, 3.3V linear regulator.
• Ultra-high PSRR of 115dB at DC and 93dB at 20kHz for operation on noisy digital supplies.
• Capable of driving highly capacitive loads up to 22nF, suitable for long cable runs.
• Features clickless/popless power-up, power-down, mute, and unmute sequences.

Audio Special Purpose Applications

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

Audio Special Purpose Procurement Notes

Verify the component authenticity by checking the manufacturer marking against the official datasheet specifications. Confirm the package type is 16-TSSOP and the suffix indicates lead-free construction. Ensure the supplier provides traceability documentation consistent with Analog Devices/Maxim Integrated standards.

Audio Special Purpose Selection Notes

Select this component when board space is limited and high-fidelity audio is required from a single +5V supply. It is suitable for environments with noisy digital power supplies due to its superior PSRR. Choose the MAX4299 over the MAX4298 if integrated microphone amplification and a 3.3V regulator are needed.

Audio Special Purpose Part Context

The MAX4299 is part of the MAX4298/MAX4299 family of ultra-high PSRR audio system ICs. It shares the same core driver architecture as the MAX4298 but adds a microphone preamplifier and a low-dropout regulator. The E suffix denotes the industrial temperature range (-40°C to +85°C), and the UE suffix specifies the 16-pin TSSOP package.

Audio Special Purpose Replacement Considerations

The MAX4298EUE+T is a compatible alternative if the microphone amplifier and linear regulator features are not required. Verify that the application does not depend on the integrated 3.3V regulator or microphone input stage before substituting.