Airoha Technology Manufacturer Skill

Company Overview

Airoha Technology is a MediaTek subsidiary specializing in Bluetooth audio solutions for TWS (True Wireless Stereo) earbuds, ANC (Active Noise Cancellation) headphones, and premium audio applications.

MPN Structure

Airoha MPNs follow this general structure:

[PREFIX][SERIES][MODEL][-PACKAGE]
   |       |       |       |
   |       |       |       +-- Optional: Package code (QFN, BGA, CSP)
   |       |       +-- Model variant (0-9)
   |       +-- Series number (55, 56, 57, 58)
   +-- AB15 prefix (Airoha Bluetooth 15xx)

Example Decoding

AB1552
|  |||
|  ||+-- 2 = Model variant (basic TWS)
|  |+-- 5 = TWS earbud series
|  +-- 15 = Bluetooth 1.5 generation
+-- AB = Airoha Bluetooth

AB1562-QFN
|  ||| |
|  ||| +-- QFN = QFN package
|  ||+-- 2 = Model variant
|  |+-- 6 = ANC series
|  +-- 15 = Generation
+-- AB = Airoha Bluetooth

AB1575
|  |||
|  ||+-- 5 = Premium variant
|  |+-- 7 = Premium audio series
|  +-- 15 = Generation
+-- AB = Airoha Bluetooth

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Series Overview

Series	Application	Features	Bluetooth
AB155x	TWS Earbuds	Basic TWS, low power	BT 5.0
AB156x	ANC Earbuds	Active Noise Cancellation	BT 5.2
AB157x	Premium Audio	Hi-Fi, low latency	BT 5.2
AB158x	Ultra-Low Power	Extended battery life	BT 5.3

---

Product Families

AB155x Series - TWS Earbuds

Part Number	Features	Bluetooth	Application
AB1552	Basic TWS	BT 5.0	Entry-level earbuds
AB1558	Enhanced TWS	BT 5.0	Mid-range earbuds

AB156x Series - ANC Earbuds

Part Number	Features	Bluetooth	ANC Type
AB1562	Hybrid ANC	BT 5.2	Feedforward + Feedback
AB1563	Enhanced ANC	BT 5.2	Advanced hybrid
AB1568	Premium ANC	BT 5.2	Multi-mic ANC

AB157x Series - Premium Audio

Part Number	Features	Bluetooth	Audio
AB1570	Hi-Fi audio	BT 5.2	High-resolution
AB1575	Premium codec	BT 5.2	LDAC/aptX HD

AB158x Series - Ultra-Low Power

Part Number	Features	Bluetooth	Power
AB1580	Ultra-low power	BT 5.3	Optimized for battery
AB1585	Enhanced ULP	BT 5.3	Extended standby

---

Package Codes

Code	Package	Description
QFN	QFN	Quad Flat No-lead
BGA	BGA	Ball Grid Array
CSP	CSP	Chip Scale Package
WLCSP	Wafer Level CSP	Ultra-small footprint
FCBGA	Flip-Chip BGA	High-density BGA

---

Bluetooth Version by Series

Series	Default BT Version	LE Audio Support
AB155x	Bluetooth 5.0	No
AB156x	Bluetooth 5.2	Yes
AB157x	Bluetooth 5.2	Yes
AB158x	Bluetooth 5.3	Yes

---

Feature Comparison

Feature	AB155x	AB156x	AB157x	AB158x
TWS Support	Yes	Yes	Yes	Yes
ANC	No	Yes	Optional	Optional
Hi-Res Audio	No	No	Yes	Yes
Low Latency	Basic	Good	Excellent	Good
Power Efficiency	Good	Good	Moderate	Excellent
LE Audio	No	Yes	Yes	Yes

---

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";

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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

Use Case	Recommended Series
Budget TWS earbuds	AB155x
Mid-range ANC earbuds	AB156x
Premium headphones	AB157x
Long-battery earbuds	AB158x

---

Related Files

• Handler:

  manufacturers/AirohaHandler.java

• Component types:

  IC

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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

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