SA2576 / SA257x Original Audio Amplifier IC (Speaker Driver)

Technical Specifications: Original Service Part (ORG) manufactured by Cirrus Logic for Apple.

• Model Marking: SA2576 (Often referred to as SA257x series).

• Type: Audio Amplifier / Speaker Driver.

• Package: Glass BGA (Fragile – requires careful handling).

• Function: Amplifies the audio signal sent to the external speakers (Loudspeakers).

Common Fixes:

1. No Speaker Sound: Device has headphone audio but no external sound.

2. Audio Distortion: Crackling or static noise coming from the speakers.

3. Boot Loop / Short: A shorted amplifier often causes the device to stuck on the Apple logo or consume high current.

Compatibility: Commonly found in Apple devices, including:

• iPad: iPad 7 (10.2″), iPad Air 3, iPad Pro 10.5, iPad Pro 12.9 (2nd Gen).

• MacBook: Various logic boards (check schematic).