The CS8409-CWZR (353S431) is a high-performance audio codec IC manufactured by Cirrus Logic, widely used in Apple MacBook logic boards.
It manages digital-to-analog and analog-to-digital conversion for speakers, microphones, and headphone outputs, ensuring precise sound reproduction and low noise.
This BGA-package sound IC serves as the main audio controller in many MacBook Pro and MacBook Air models, providing compatibility with Apple’s custom audio architecture.
It’s ideal for professional repair and replacement of faulty sound circuits in MacBook logic boards, restoring full audio functionality.