ALC3225 Realtek Audio Codec IC

ALC3225 is a High Definition (HD) Audio Codec IC from Realtek Semiconductor, used in budget to mid-range laptop motherboards. It appears in several OEM designs from Dell, HP, Lenovo, and Acer, providing stable onboard audio for daily laptop operation.

This IC manages speaker output, headphone jack detection, and microphone input. In repair work, a defective ALC3225 often causes no sound, intermittent or distorted audio, mic not working, or headphone detection failure, making it a commonly requested replacement for laptop audio issues.

Though not a new-generation codec, ALC3225 still sees consistent repair demand because many compatible laptops remain in active use.

Technical Summary

• Intel High Definition Audio (HDA) compliant codec

• Stereo speaker and headphone output support

• Integrated microphone input with jack sensing

• Low power consumption optimized for laptops

• QFN SMD package for motherboard-level repair