MAX9723DETE+TCJ6

Audio Amplifiers Overview

The MAX9723DETE+ is a stereo Class AB headphone amplifier utilizing DirectDrive architecture for single-supply operation from 1.8V to 3.6V. It delivers 62mW into a 16Ω load with 0.006% THD+N and 90dB PSRR at 1kHz. The device features integrated BassMax, 32-level digital volume control via I2C/SMBus, and industry-leading click-and-pop suppression. It operates over an extended temperature range of -40°C to +85°C in a 16-pin Thin QFN package.

Audio Amplifiers Feature Summary

• DirectDrive architecture eliminates bulky DC-blocking capacitors by generating a ground-referenced output from a single supply.
• Integrated software-controlled BassMax circuitry boosts low-frequency response to compensate for inexpensive headphones.
• Comprehensive click-and-pop suppression ensures minimal audible transients during power-up and shutdown transitions.
• Low-power shutdown mode reduces quiescent current consumption to extend battery life in portable applications.

Audio Amplifiers Applications

• PDA Audio
• Portable CD Players
• Mini Disc Players
• MP3-Enabled Cellular Phones
• MP3 Players

Audio Amplifiers Procurement Notes

Verify the specific suffix code against official documentation to confirm the exact slave address and maximum programmable gain variant (A, B, C, or D). Confirm that the ordering suffix matches the required package type and thermal characteristics. Ensure compatibility with the system's I2C bus voltage levels and pull-up resistor requirements before finalizing procurement.

Audio Amplifiers Selection Notes

Select the appropriate sub-model based on the required maximum gain: MAX9723A/B offer 0dB max gain, while MAX9723C/D provide +6dB. Verify that the system design accommodates the external components required for the BassMax filter network. Ensure the PCB layout supports the exposed paddle connection for optimal thermal dissipation and electrical performance within the specified operating temperature range.

Audio Amplifiers Part Context

The MAX9723 belongs to Maxim Integrated's DirectDrive family of stereo headphone amplifiers. This series is designed for space-constrained portable audio devices where high performance and low component count are critical. The technology focuses on eliminating large output coupling capacitors to improve low-frequency response and reduce board space.

Audio Amplifiers Replacement Considerations

Substitute with other MAX9723 variants (MAX9723AETE+, MAX9723BETE+, MAX9723CETE+, MAX9723DETE+) depending on the required gain setting and I2C slave address. All variants share the same pinout and functional architecture but differ in maximum gain configuration.