MAX98091ETM+T

Codecs Overview

The MAX98091ETM+T is a fully integrated stereo audio codec designed for portable applications, featuring ultra-low power consumption and a small footprint. It supports sample rates from 8kHz to 96kHz with master clock frequencies of 256 x fS or 10MHz to 60MHz. The device includes FlexSound® DSP for record path biquad filtering and playback path dynamic range control and seven-band parametric equalization. It integrates a stereo Class D speaker amplifier capable of driving 4Ω and 8Ω loads, a DirectDrive® Class H headphone amplifier, and a differential receiver amplifier. Input flexibility allows configuration as analog/digital microphone or line inputs.

Codecs Feature Summary

• Highly flexible input architecture supporting analog and digital microphones, differential/single-ended line inputs, and full-scale direct differential inputs.
• Integrated FlexSound® technology providing digital gain, filtering, dynamic range control, and a seven-band parametric equalizer.
• Stereo Class D speaker amplifier offering efficient amplification with low radiated emissions and filterless operation capability.
• DirectDrive® stereo Class H headphone amplifier providing ground-referenced output to eliminate large DC-blocking capacitors.

Codecs Applications

• Portable consumer electronics requiring high-performance audio with minimal power draw
• Mobile devices utilizing digital microphone arrays and advanced acoustic processing
• Handset applications integrating speaker, headphone, and earpiece outputs on a single chip

Codecs Procurement Notes

Verify the specific package variant against the datasheet ordering information, as the MAX98091 series is available in both WLP and TQFN packages. Confirm that the ETM suffix corresponds to the required thermal and electrical specifications for your design environment. Ensure compatibility with the I2C control interface and digital audio formats supported by the host processor before finalizing procurement.

Codecs Selection Notes

Select this component when system requirements demand an integrated solution combining ADC/DAC conversion with Class D and Class H amplification. Consider the FlexSound® DSP capabilities if signal processing such as equalization or noise reduction is needed without external processors. Verify that the supply voltage range and operating temperature limits align with the target application's environmental constraints.

Codecs Part Context

The MAX98091 belongs to Maxim Integrated's portfolio of ultra-low power audio codecs. It is part of a family designed to reduce bill-of-materials count in mobile devices by integrating multiple audio functions into a single chip. The device competes in the market for highly integrated audio subsystems used in smartphones and tablets where space and power efficiency are critical design parameters.

Codecs Replacement Considerations

Check for updated revisions within the MAX98091 family. Consult Analog Devices documentation for recommended products or cross-reference guides to identify alternative components with similar pinouts and functionality if this specific part number is unavailable.