Airoha

Series Overview

Product Families

AB155x Series - TWS Earbuds

AB156x Series - ANC Earbuds

AB157x Series - Premium Audio

AB158x Series - Ultra-Low Power

Package Codes

Bluetooth Version by Series

Feature Comparison

Handler Implementation Notes

Pattern Matching

// AB155x Series - TWS earbuds
"^AB155[0-9].*"

// AB156x Series - ANC earbuds
"^AB156[0-9].*"

// AB157x Series - Premium audio
"^AB157[0-9].*"

// AB158x Series - Ultra-low power
"^AB158[0-9].*"

// Generic pattern for all AB15xx
"^AB15[5-8][0-9].*"

Package Code Extraction

// Check for hyphenated suffix first
String[] parts = upperMpn.split("-");
if (parts.length > 1) {
    String suffix = parts[parts.length - 1];
    // Map: QFN, BGA, CSP, WLCSP, FCBGA
}

// Check for inline package indicators
if (upperMpn.contains("QFN")) return "QFN";
if (upperMpn.contains("BGA")) return "BGA";

Series Extraction

// Extract first 6 characters (e.g., AB1562)
// Validate matches AB15[5-8][0-9] pattern
if (result.matches("^AB15[5-8][0-9].*")) {
    return result.substring(0, 6);
}

Bluetooth Version Inference

// Infer BT version from series
if (mpn.startsWith("AB158")) return "5.3";
if (mpn.startsWith("AB157")) return "5.2";
if (mpn.startsWith("AB156")) return "5.2";
if (mpn.startsWith("AB155")) return "5.0";

Replacement Compatibility

Within-Series Replacements

Higher model numbers within a series can typically replace lower ones:

• AB1558 can replace AB1552 (more features)
• AB1568 can replace AB1562 (better ANC)

Cross-Series Restrictions

Different series target different applications and are NOT interchangeable:

• AB156x (ANC) should NOT replace AB155x (basic TWS)
• AB157x (premium) should NOT replace AB155x (basic TWS)

Feature Compatibility Rules

1. If target requires ANC, replacement must support ANC
2. If target requires premium audio, replacement must support it
3. Higher Bluetooth version can replace lower version

Application Guidelines

Related Files

• Handler: manufacturers/AirohaHandler.java
• Component types: IC

Learnings & Edge Cases

• MediaTek subsidiary: Airoha is owned by MediaTek, some parts may have MTK cross-references
• Series determines features: AB155x vs AB156x vs AB157x have fundamentally different capabilities
• Package suffix optional: Many MPNs don't include package code
• Bluetooth version tied to series: Cannot upgrade BT version without changing series
• ANC compatibility critical: Never substitute non-ANC for ANC-required applications
• Model numbering: Higher model number within series = more features/better performance