MAX9700AETB+T

Audio Amplifiers Overview

The MAX9700AETB+T is a mono Class D audio power amplifier in a 10-pin TDFN package. It delivers 1.2W into an 8Ω load with over 90% efficiency. The device features a low-EMI modulation scheme that eliminates the need for output filters. Internal gain is set to 6dB. Electrical specifications include a 4mA quiescent current, 0.01% THD+N, and 72dB PSRR at 217Hz. Operating voltage ranges from 2.5V to 5.5V, with an extended temperature range of -40°C to +85°C.

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
• Comprehensive click-and-pop suppression ensures silent startup and shutdown transitions

Audio Amplifiers Applications

• Cellular phones
• Portable MP3 players
• Personal digital assistants (PDAs)
• Portable audio devices

Audio Amplifiers Procurement Notes

Verify component authenticity through authorized Analog Devices or Maxim Integrated distributors. Confirm the specific suffix ETB corresponds to the 10-pin TDFN package variant. Check for RoHS compliance status and ensure the part meets environmental regulations for your target market. Validate supply chain integrity to avoid counterfeit components.

Audio Amplifiers Selection Notes

Select this model when board space is limited due to its filterless design and compact TDFN footprint. Choose the A variant specifically for applications requiring a fixed internal gain of 6dB. Ensure the system operates within the 2.5V to 5.5V supply range. Verify that speaker loads have sufficient series inductance to support filterless operation effectively.

Audio Amplifiers Part Context

This component belongs to the MAX9700 family of low-power, high-efficiency audio amplifiers. It is manufactured by Analog Devices Inc./Maxim Integrated. The family includes variants with different gain settings and packages, such as the UCSP and μMAX options. The MAX9700AETB+T specifically denotes the 6dB gain version in the thermally efficient TDFN enclosure.

Audio Amplifiers Replacement Considerations

Direct substitutes include other MAX9700 variants like the MAX9700BEBC+T or MAX9700AEUB+, provided the gain requirements match the application needs.