MAX9700BETB+TG05

Audio Amplifiers Overview

The MAX9700BETB+TG05 is a mono Class D audio power amplifier manufactured by Analog Devices Inc./Maxim Integrated. It delivers 1.2W into an 8Ω load with efficiencies exceeding 90%. The device operates on a supply voltage range of 2.5V to 5.5V and features a fixed internal gain of 12dB. It utilizes a filterless modulation scheme, eliminating the need for external LC output filters. Key electrical parameters include a quiescent current of 4mA, shutdown current of 0.1μA, and THD+N of 0.01% at 125mW output. The unit is housed in a 10-pin TDFN package (3mm x 3mm x 0.8mm) and is specified for operation between -40°C and +85°C.

Audio Amplifiers Feature Summary

• Filterless architecture eliminates the need for external output LC filters, reducing component count and board space.
• Spread-spectrum modulation mode reduces EMI radiated emissions by 5dB compared to conventional methods.
• Fully differential input architecture improves noise immunity and allows DC-coupled connections without input capacitors.
• Integrated click-and-pop suppression prevents audible transients during startup and shutdown sequences.

Audio Amplifiers Applications

• Cellular Phones
• PDAs
• MP3 Players
• Portable Audio

Audio Amplifiers Procurement Notes

Verify the specific suffix TG05 against official manufacturer documentation to confirm tape and reel specifications or lot traceability details not explicitly detailed in standard datasheets. Confirm RoHS compliance status as per the latest environmental certificates. Ensure the ordering part number matches the exact pinout and thermal pad requirements for the 10-pin TDFN package before finalizing procurement orders.

Audio Amplifiers Selection Notes

Select this component when designing portable audio systems requiring high efficiency and minimal external components. The 12dB fixed gain suits applications driven directly by CODECs without additional amplification stages. Consider the SYNC pin functionality if system-wide clock synchronization or stereo master-slave configurations are required to minimize intermodulation interference.

Audio Amplifiers Part Context

This device belongs to the MAX9700 family of low-EMI, filterless Class D audio amplifiers. Variants within the family differ primarily in fixed gain settings (6dB, 12dB, 15.6dB, 20dB) and available packages such as μMAX and UCSP. The MAX9700BETB+ variant specifically denotes the 12dB gain version in the 10-pin TDFN package.

Audio Amplifiers Replacement Considerations

Other MAX9700 variants with different gains (e.g., MAX9700AETB+, MAX9700CETB+) share the same package and pinout but have different internal gain settings. Verify that the 12dB gain of the MAX9700BETB+ aligns with the system's signal chain requirements before substituting with other gain variants.