MAX9888EWY+

Audio Amplifiers Overview

The MAX9888EWY+ is a stereo audio CODEC featuring FlexSound technology, designed for portable applications. It integrates Class D speaker amplifiers with low radiated emissions for filterless operation and DirectDrive headphone amplifiers that eliminate DC-blocking capacitors. The device includes three differential analog microphone inputs, support for two PDM digital microphones, and two line inputs. It features dual I2S/PCM/TDM interfaces, asynchronous digital mixing, and extensive click-and-pop reduction.

Audio Amplifiers Feature Summary

• Integrated FlexSound technology providing automatic level control, parametric equalization, and speaker protection limiters.
• DirectDrive headphone amplifier delivering ground-referenced output to remove large coupling capacitors.
• Low EMI Class D speaker amplifiers enabling efficient, completely filterless operation.
• Dual digital audio interfaces supporting I2S, PCM, and TDM formats with master clock frequencies up to 60MHz.

Audio Amplifiers Applications

• Portable multimedia devices requiring integrated audio processing and amplification.
• Mobile phones and handheld communication devices utilizing direct drive headphones.
• Digital voice recording equipment leveraging built-in microphone preamps and noise gates.
• Automotive infotainment systems operating within extended temperature ranges.

Audio Amplifiers Procurement Notes

Verify the specific suffix 'EWY+' indicates a lead-free/RoHS-compliant package in the official datasheet. Confirm the 63-bump WLP footprint dimensions match your PCB layout constraints. Ensure compatibility with the required supply voltage ranges for both digital and analog sections before finalizing procurement.

Audio Amplifiers Selection Notes

Select this component when a compact solution combining high-performance audio conversion with power-efficient Class D amplification is required. The integrated DirectDrive feature simplifies headphone circuit design by removing external capacitors. Consider the FlexSound suite if advanced loudspeaker management and microphone signal optimization are necessary for the application.

Audio Amplifiers Part Context

This part belongs to the Maxim Integrated MAX9888 series of stereo audio CODECs. It is distinguished by its comprehensive FlexSound technology suite and integrated DirectDrive headphone outputs. The device is housed in a 63-bump Wafer-Level Package (WLP) measuring 3.80mm x 3.30mm, suitable for space-constrained portable electronics.

Audio Amplifiers Replacement Considerations

Check for pin-compatible alternatives within the same product family that may offer updated packaging or minor electrical improvements. Verify that any substitute maintains support for the required digital audio interface protocols and FlexSound functionality.

Audio Amplifiers FAQ

Does the MAX9888 require external capacitors for headphone operation?

No, the integrated DirectDrive headphone amplifiers provide a true ground-referenced output, eliminating the need for large DC-blocking capacitors typically required in other designs.

What types of microphone inputs does the MAX9888 support?

The device supports three differential analog microphone inputs and can also interface with two PDM digital microphones.