LM4898MM

Audio Amplifiers Overview

The LM4898MM is a fully differential audio power amplifier manufactured by National Semiconductor, now part of Texas Instruments. It delivers 1 watt of output power into an 8-ohm load and operates within a supply voltage range of 2.5 volts to 5.5 volts. The device utilizes a Class AB topology and features a selectable shutdown mode for power management. It is housed in a 10-pin MSOP package with an operating temperature range from -40°C to +85°C.

Audio Amplifiers Feature Summary

• Fully differential architecture minimizes external components and reduces electromagnetic interference.
• Integrated selectable shutdown function enables efficient power conservation in portable devices.
• Class AB operation provides high-quality audio reproduction with low distortion.

Audio Amplifiers Applications

• Portable media players
• Mobile phones
• Personal digital assistants

Audio Amplifiers Procurement Notes

Verify the manufacturer designation as National Semiconductor or Texas Instruments on the component marking. Confirm the presence of the NOPB suffix if lead-free compliance is required. Ensure the package type matches the 10-pin MSOP specification. Check the operating temperature grade against application requirements.

Audio Amplifiers Selection Notes

Select this component for mono audio applications requiring a single-channel amplifier. Consider the fully differential input structure for noise immunity. Evaluate the shutdown pin functionality for battery-powered systems. Compare the 1-watt output capability against speaker impedance requirements.

Audio Amplifiers Part Context

This component belongs to the LM489x series of audio amplifiers designed for mobile communication devices. It shares functional similarities with other members like the LM4890 and LM4893 but differs in channel configuration and package options. The series targets low-voltage consumer electronics markets.

Audio Amplifiers Replacement Considerations

LM4898MMX serves as the tape-and-reel variant of this component. LM4898ITL offers a different package option. Verify electrical compatibility before substituting with other mono amplifiers.