ess

# 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 ```java // 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 ```java // Check for hyphenated suffix with package info // ES9218P-QFNR-48 -> QFN // Check for embedded package code without hyphen // ESxxxxQFN -> QFN ``` ### Base Part Number Extraction ```java // 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. <!-- Add new learnings above this line -->