MAX9700BEUB+

Audio Amplifiers Overview

The MAX9700BEUB+ is a mono Class D audio power amplifier from Analog Devices/Maxim Integrated, housed in a 10-pin μMAX package. It delivers 1.2W into an 8Ω load with over 90% efficiency and features a low-EMI spread-spectrum modulation scheme that eliminates the need for output filters. The device operates on a single supply voltage ranging from 2.5V to 5.5V, includes integrated click-and-pop suppression, and provides short-circuit and thermal-overload protection.

Audio Amplifiers Feature Summary

• Filterless architecture utilizing unique modulation to pass FCC radiated emissions standards without external LC components
• Spread-spectrum mode reduces EMI-radiated emissions by 5dB compared to conventional fixed-frequency methods
• Fully differential input architecture minimizes common-mode noise pickup and allows DC-coupled operation
• Integrated comprehensive click-and-pop suppression ensures silent startup and shutdown transitions

Audio Amplifiers Applications

• Cellular Phones
• PDAs
• MP3 Players
• Portable Audio

Audio Amplifiers Procurement Notes

Verify the specific suffix 'BEUB' corresponds to the 10-pin μMAX package variant during procurement. Confirm the internal gain setting associated with the 'B' designation matches system requirements. Ensure compatibility with the specified operating temperature range of -40°C to +85°C for the target application environment.

Audio Amplifiers Selection Notes

Select this component when board space conservation is critical due to its filterless design and compact μMAX packaging. Choose the MAX9700BEUB+ specifically if a 12dB internal gain configuration is required for the signal chain. Consider the optional SYNC input for master-slave stereo setups or clock synchronization needs in complex systems.

Audio Amplifiers Part Context

The MAX9700 series combines Class AB audio performance with Class D efficiency. This specific part belongs to the MAX9700 family, which offers various gain options (A, B, C, D) and package types (TDFN, μMAX, UCSP). It is designed to extend battery life in portable devices while maintaining high audio fidelity through low distortion and high power-supply rejection ratios.

Audio Amplifiers Replacement Considerations

Substitutes within the MAX9700 family include MAX9700AEUB+ (6dB gain), MAX9700CEUB+ (15.6dB gain), and MAX9700DEUB+ (20dB gain). Other packages such as TDFN or UCSP are available but require pinout and thermal management review.