MAX9700DETB+T

Audio Amplifiers Overview

The MAX9700DETB+T is a mono Class D audio power amplifier from Analog Devices/Maxim Integrated, housed in a 10-pin TDFN package (3mm x 3mm x 0.8mm). It delivers 1.2W into an 8Ω load with efficiencies exceeding 90%. The device features a low-EMI modulation scheme that eliminates the need for output filters. Electrical specifications include a supply voltage range of 2.5V to 5.5V, quiescent current of 4mA, and shutdown current of 0.1μA. Audio performance metrics show 0.01% THD+N and over 90dB SNR. The internal gain is fixed at 20dB for the 'D' suffix variant.

Audio Amplifiers Feature Summary

• Filterless operation utilizing a unique low-EMI modulation scheme that removes the requirement for traditional LC output filters.
• Spread-spectrum mode capability that reduces radiated EMI emissions by spreading spectral energy across a wider bandwidth.
• Fully differential input architecture providing high noise immunity and compatibility with various CODECs without input coupling capacitors.
• Integrated click-and-pop suppression circuitry that prevents audible transients during power-up and shutdown sequences.

Audio Amplifiers Applications

• Cellular phones
• Portable media players
• Personal digital assistants

Audio Amplifiers Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm the exact pinout, thermal pad configuration, and gain setting associated with the DE TB designation. Ensure the component meets RoHS compliance requirements for your target market. Cross-reference the datasheet revision date to confirm the accuracy of the electrical characteristics provided.

Audio Amplifiers Selection Notes

Select this component when board space is limited due to its filterless design and compact TDFN footprint. Choose the MAX9700DETB+T specifically if a fixed internal gain of 20dB aligns with the system signal chain requirements. Consider the spread-spectrum mode if strict EMI regulations must be met without additional filtering components.

Audio Amplifiers Part Context

This part belongs to the MAX9700 family of Class D amplifiers designed for portable electronics. The family includes variants with different gain settings and packages, such as UCSP and μMAX. The MAX9700 series is engineered to provide class AB audio quality with class D efficiency, targeting battery-powered applications where power conservation and size reduction are critical design constraints.

Audio Amplifiers Replacement Considerations

Public confirmed substitute part numbers: None identified in source material.