ALC268 Realtek Audio Codec IC

ALC268 is a High Definition (HD) Audio Codec IC designed by Realtek Semiconductor, widely used in older-generation laptop and notebook motherboards. It is commonly found in systems from Dell, HP, Lenovo, Acer, and Toshiba, providing reliable onboard audio for everyday use.

This IC controls speaker output, headphone jack detection, and microphone input. When the ALC268 fails, common symptoms include no sound, low or distorted audio, microphone not detected, or headphone jack issues, making it a frequent replacement part in laptop motherboard repair.

Technical Summary

• Intel High Definition Audio (HDA) compliant codec

• Supports stereo speakers and headphone output

• Integrated microphone input with jack sensing

• Designed for low power laptop platforms

• QFN SMD package for motherboard-level repair