Cantara/ess
.claude/skills/manufacturers/ess/SKILL.md
ESS Technology MPN encoding patterns, high-end audio DAC decoding, and handler guidance. Use when working with ESS Sabre DACs or ESSHandler.
$ install --global
skillsauthnpx skillsauth add Cantara/lib-electronic-components essInstall this skill globally with one command. Works with Claude Code, Cursor, and Windsurf.
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Last scanned: Apr 16, 2026, 6:04 PM7.4s1 file scanned
SKILL.md
- name:
- ess
- description:
- ESS Technology MPN encoding patterns, high-end audio DAC decoding, and handler guidance. Use when working with ESS Sabre DACs or ESSHandler.
ESS Technology Manufacturer Skill
MPN Structure
ESS Technology specializes in high-performance audio DACs (Sabre series).
ES[SERIES][VARIANT]-[PACKAGE]-[PINCOUNT]
| | | | |
| | | | +-- Pin count (optional)
| | | +-- Package code (QFN, TQFP, etc.)
| | +-- Variant (PRO, Q2M, K2M, P, S)
| +-- Series (9038, 9028, 9018, 92xx)
+-- ES = ESS Technology prefix
Example Decoding
ES9038PRO
| | |
| | +-- PRO = 8-channel flagship variant
| +-- 9038 = Flagship Sabre series
+-- ES = ESS Technology
ES9218P-QFNR-48
| | | | |
| | | | +-- 48 = 48-pin
| | | +-- QFNR = QFN package, Tape and Reel
| | +-- P = Portable variant with headphone amp
| +-- 9218 = Portable DAC series
+-- ES = ESS Technology
Product Families
ES9038 Series - Flagship Sabre DACs
The ultimate performance audio DACs.
| Part | Channels | Features | |------|----------|----------| | ES9038PRO | 8 | Flagship, -140dB THD+N | | ES9038Q2M | 2 | Mobile/portable optimized |
ES9028 Series - High-End Sabre DACs
| Part | Channels | Features | |------|----------|----------| | ES9028PRO | 8 | High performance | | ES9028Q2M | 2 | Mobile version |
ES9018 Series - Classic Sabre DACs
| Part | Channels | Features | |------|----------|----------| | ES9018S | 8 | Reference stereo | | ES9018K2M | 2 | Mobile 2-channel |
ES901x/902x Series - Mid-Range DACs
| Part | Description | |------|-------------| | ES9010 | Entry-level DAC | | ES9016 | Mid-range DAC | | ES9023 | Popular 24-bit DAC |
ES92xx Series - Portable DACs with Headphone Amps
Integrated DAC + headphone amplifier for mobile devices.
| Part | Features | |------|----------| | ES9218P | Portable HiFi, headphone amp | | ES9219 | Latest portable DAC/amp | | ES9219C | ES9219 variant | | ES9281 | USB DAC |
Variant Suffixes
| Suffix | Meaning | |--------|---------| | PRO | Professional 8-channel flagship | | Q2M | 2-channel mobile/battery optimized | | K2M | 2-channel compact variant | | S | Stereo version | | P | Portable with headphone amp | | C | Grade/revision variant |
Package Codes
| Code | Package | Notes | |------|---------|-------| | QFN | QFN | Most common for audio DACs | | QFNR | QFN, Tape & Reel | QFN with packaging | | TQFP | TQFP | Larger pin count parts | | WLCSP | WLCSP | Compact mobile parts | | LQFP | LQFP | Low-profile quad flat |
Handler Implementation Notes
Series Extraction
// Extract ES + 4 digits for the series
// ES9038PRO -> ES9038
// ES9218P -> ES9218
if (upperMpn.length() >= 6) {
String digits = upperMpn.substring(2, 6);
if (digits.chars().allMatch(Character::isDigit)) {
return "ES" + digits;
}
}
Package Code Extraction
// Check for hyphenated suffix with package info
// ES9218P-QFNR-48 -> QFN
// Check for embedded package code without hyphen
// ESxxxxQFN -> QFN
Base Part Number Extraction
// Remove package suffixes to get base part
// ES9038PRO-QFN -> ES9038PRO
// ES9218P-QFNR-48 -> ES9218P
// Remove trailing package codes
result = upper
.replaceAll("QFN.*$", "")
.replaceAll("TQFP.*$", "")
.replaceAll("WLCSP.*$", "")
.replaceAll("LQFP.*$", "");
Replacement Rules
Same Part, Different Package
Parts with the same base number but different packages are replacements:
- ES9038PRO-QFN = ES9038PRO-TQFP (same part, different package)
- ES9218P = ES9218P-QFNR-48 (same part with package suffix)
NOT Replacements (Different Channel Count)
Parts in the same series with different channel counts are NOT direct replacements:
- ES9038PRO (8-channel) != ES9038Q2M (2-channel)
- ES9028PRO (8-channel) != ES9028Q2M (2-channel)
Related Files
- Handler:
manufacturers/ESSHandler.java - Component types:
ComponentType.IC
Common MPNs
| MPN | Description | Application | |-----|-------------|-------------| | ES9038PRO | 8-ch flagship DAC | High-end audio | | ES9038Q2M | 2-ch mobile DAC | Portable HiFi | | ES9028PRO | 8-ch high-end | Audio equipment | | ES9018K2M | 2-ch classic | DAPs, headphone amps | | ES9218P | Portable DAC/amp | Smartphones | | ES9219 | Latest portable | USB-C audio | | ES9023 | Entry 24-bit | DIY audio |
Audio Specifications
ES9038PRO Performance
| Spec | Value | |------|-------| | THD+N | -140 dB | | DNR | 140 dB | | Channels | 8 | | Resolution | 32-bit | | Sample Rate | Up to 768 kHz |
ES9218P Performance
| Spec | Value | |------|-------| | THD+N | -118 dB | | SNR | 129 dB | | Output | 2 Vrms | | Features | HiFi DAC + headphone amp |
Applications
- High-end audio equipment
- Digital Audio Players (DAPs)
- Headphone amplifiers
- USB DACs
- Smartphone HiFi
- Professional audio systems
- Home theater preamps
- Audiophile equipment
Learnings & Edge Cases
- PRO vs Q2M naming: PRO = 8-channel professional, Q2M = 2-channel mobile - NOT interchangeable.
- Channel count determines compatibility: 8-channel and 2-channel parts are functionally different.
- ES92xx includes headphone amp: These are integrated DAC + amp solutions, not standalone DACs.
- Package rarely changes function: Same base part in different packages are true replacements.
- ESS Sabre branding: All modern ESS DACs use "Sabre" technology branding.
- K2M vs Q2M: Both are 2-channel, but K2M is earlier generation, Q2M is optimized for mobile.
- High-end audio market: ESS dominates portable HiFi - found in most premium DAPs and USB DACs.
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