MAX98361AEWL+T

Audio Amplifiers Overview

The MAX98361AEWL+T is a digital pulse-code modulation (PCM) input Class-D amplifier from Analog Devices/Maxim Integrated. It operates on a single supply voltage ranging from 2.5V to 5.5V and delivers up to 3.2W of output power into a 4Ω load at 5V. The device features a quiescent current of 2.2mA, standby current of 1.5μA, and shutdown current of 0.5μA. It supports sample rates from 8kHz to 96kHz with data word lengths of 16-bit, 24-bit, or 32-bit in I2S and left-justified modes. The amplifier achieves 92% efficiency at an 8Ω load with 10% THD+N, offers 110dB dynamic range, and includes extensive click-and-pop reduction circuitry.

Audio Amplifiers Feature Summary

• Plug-and-play design with automatic recognition of PCM and TDM clocking schemes, eliminating the need for I2C programming.
• Filterless operation utilizing advanced edge-rate limiting and spread-spectrum modulation to reduce EMI without external output filters.
• No master clock (MCLK) required, reducing board coupling issues and simplifying system architecture.
• Robust protection mechanisms including thermal shutdown, short-circuit protection, and low RF susceptibility to reject GSM TDMA noise.

Audio Amplifiers Applications

• Single Li-ion Cell/5V Devices
• Smart Speakers
• Notebook Computers
• IoT Devices
• Gaming Devices (Audio and Haptics)

Audio Amplifiers Procurement Notes

Verify the specific suffix 'AEWL+T' against the manufacturer's official ordering guide to confirm package type, temperature range, and RoHS compliance status. Ensure the selected variant matches the required turn-on time characteristics, as different suffixes within the MAX98361 family may exhibit distinct ramp-up behaviors. Confirm availability through authorized distributors given potential supply constraints.

Audio Amplifiers Selection Notes

Select this component when a compact, filterless digital audio solution is required. The MAX98361AEWL+T is suitable for designs needing high efficiency and low standby power. Consider the specific turn-on behavior associated with the 'A' suffix if fast startup is critical. Verify that the host processor can provide the necessary LRCLK and BCLK signals for the plug-and-play interface.

Audio Amplifiers Part Context

The MAX98361 series represents a line of tiny, cost-effective, plug-and-play digital Class-D amplifiers. These devices combine industry-leading Class-AB audio performance with Class-D efficiency. The series is designed to simplify system design by removing the need for complex configuration registers and external filtering components, making it ideal for space-constrained portable electronics.

Audio Amplifiers Replacement Considerations

Direct replacements include other variants within the MAX98361 family such as MAX98361BEWL+T, MAX98361CEWL+T, and MAX98361DEWL+T. Note that these alternatives differ primarily in turn-on and turn-off volume ramping characteristics compared to the AEWL+T variant.