LX1721CDB

Description：IC AMP CLASS D STEREO 25W 44QSOP
Series：AudioMAX™
Mfr：Microsemi Corporation
Package：Tube

SKU:3d5630c0a669 Category: Audio Amplifiers Brand: Microsemi Corporation

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Product introduction

LX1721CDB is listed in the Audio Amplifiers range at ChipApex. The manufacturer field lists Microsemi Corporation. Its product description is IC AMP CLASS D STEREO 25W 44QSOP. Review the specifications below when checking this part for your BOM.

Audio Amplifiers specifications for LX1721CDB

Description：IC AMP CLASS D STEREO 25W 44QSOP
Series：AudioMAX™
Mfr：Microsemi Corporation
Package：Tube
Type：Class D
Output Type：2-Channel (Stereo)
Max Output Power x Channels @ Load：25W x 2 @ 4Ohm
Voltage - Supply：7V ~ 15V
Features：Differential Inputs, Mute
Mounting Type：Surface Mount
Supplier Device Package：44-QSOP
Package / Case：44-QSOP
Operating Temperature：-20°C ~ 70°C (TA)
Grade：-
Qualification：-

Audio Amplifiers datasheet and documents for LX1721CDB

LX1721CDB

Audio Amplifiers Overview

The LX1721CDB is a monolithic high-performance Class-D stereo controller IC manufactured by Microsemi Corporation. Designed for space-constrained and battery-operated applications, it delivers full audio bandwidth from 20Hz to 20kHz with single-supply operation. The device offers high fidelity performance, featuring a typical THD+N of less than 0.06% at 1Wrms into a 4Ω load. It supports multi-channel systems and provides differential inputs to minimize noise effects, serving as a complete solution when combined with external power MOSFETs and output filters.

Audio Amplifiers Feature Summary

Integrated switching Class-D stereo controller designed for high efficiency
Full 20Hz-20kHz audio bandwidth capability
High fidelity version optimized for superior sound quality
Single supply operation with differential input configuration

Audio Amplifiers Applications

Multimedia speakers
Notebook computers
Automotive amplifiers and head units
Portable audio boom boxes
Home theatre systems

Audio Amplifiers Procurement Notes

Verify the current lifecycle status of the LX1721CDB, as Microsemi products may have transitioned through acquisitions or discontinuation phases. Confirm package availability in the 44-pin QSOP format. Ensure compatibility with required external components such as output power MOSFETs and filters for system integration.

Audio Amplifiers Selection Notes

Select the LX1721CDB over the LX1722 variant when high fidelity is prioritized over maximum output power. This model is suitable for applications requiring lower distortion and improved signal-to-noise ratios rather than raw wattage. Consider the 44-pin QSOP package constraints during PCB layout planning.

Audio Amplifiers Part Context

This component belongs to the LX1721/1722 family of Class-D stereo controllers. These devices represent an evolution in amplifier technology, offering improved performance metrics compared to previous generations. The family addresses the need for compact, efficient audio solutions in portable and automotive electronics.