Alc271x Datasheet __link__ Jun 2026

The utilizes a 48-pin QFN package, which is designed for easy routing on crowded motherboard PCBs. The pinout typically includes:

Supporting audio in specialized equipment. 5. Drivers and Compatibility

: Meets Windows Logo Program (WLP) audio requirements for legacy systems like Windows 7 and Vista. Key Features alc271x datasheet

If you are performing a board-level repair, check the VREF pins. If the reference voltage is missing, the chip won't output sound even if the software looks perfect.

The is a high-performance, low-power High Definition (HD) Audio Codec integrated circuit widely deployed in laptop motherboards, desktop PCs, and embedded multimedia systems. Designed by Realtek Semiconductor Corp., this IC acts as the primary hardware interface between a computer's operating system and its physical audio components—such as built-in speakers, external headphones, microphone arrays, and line-in jacks. The utilizes a 48-pin QFN package, which is

For PCB designers, the mechanical section of the alc271x datasheet is mandatory reading.

If you are digging for the , you are likely working on a laptop repair, designing an embedded system, or trying to troubleshoot audio driver issues on an older machine. The ALC271X series, manufactured by Realtek, is a staple in the world of integrated High Definition Audio (HDA). Drivers and Compatibility : Meets Windows Logo Program

Supports stereo playback on two independent channels, making it suitable for 2.1 or 4-channel sound setups.

Before diving into circuit design, here are the absolute maximum ratings and DC characteristics you must extract from the official datasheet:

Several component distributors provide the ALC271X datasheet as a PDF: