Lightsabre dac
About the Lightsabre dac PCB
Lightsabre dac is an open source PCB design by Darmur, published on GitHub under the CC0-1.0 license. It is a 4-layer board measuring 65 × 56 mm, with 137 components from 32 distinct parts.
Other key parts include the 78L09, PJ79L09SQ, LR6206B-U33, TPS7A2033PDBVR and ES9018K2M. By type, the board carries 62 capacitors, 49 resistors, 10 ICs, 6 connectors, 4 diodes and 4 inductors.
It belongs with the audio and dev boards & breakouts designs in this gallery.
From the project
Audiophile DAC for Raspberry Pi, based on ESS Sabre ES9018K2M
An audiophile Raspberry Pi HAT, given away complete.
Designed by Dario “Darmur” Murgia. Released under CC0 1.0.
LightSABRE is a finished, manufacturable, dual-edition DAC for Raspberry Pi. The Gerbers, pick-and-place, 3D model, and two BOMs — already filled with LCSC, Mouser, and Digi-Key numbers — live in this repository. The work of designing it is done. What remains is to make a board, listen, and share what you heard.
Main components on the Lightsabre dac
Lightsabre dac bill of materials (BOM)
137 components, 32 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 78L09 78L09-SOT89_002 | SOT-89-3 | U1 |
| 1 | PJ79L09SQ 79L09-SOT89_002 | SOT-89-3 | U2 |
| 1 | LR6206B-U33 | SOT-23 | U3 |
| 1 | TPS7A2033PDBVR TPS7A2033-SOT23 | SOT-23-5 | U4 |
| 1 | ES9018K2M | QFN-28-1EP_5x5mm_P0.5mm_EP3.25x3.25mm_ThermalVias_0.3mm | U5 |
| 5 | OPA1678IDGKR OPA1678-VSSOP | MSOP-8_3x3mm_P0.65mm | U6, U7, U8, U9, U10 |
| 1 | O93225100MEDA4SI-13 OSC-XO-100M-3225_002 | Oscillator_SMD_4Pin_3.2x2.5mm | Y1 |
| 1 | DC-005 5.5-2.0MM BARREL-JACK-SW_002 | BarrelJack | J1 |
| 1 | C124375 CONN-HDR-01X02-2.54-TH_002 | PinHeader_2x01_P2.54mm_Vertical | J2 |
| 3 | PJ-320A | TRRS-PJ-320A | J3, J4, J5 |
| 1 | 2.54-2*20PPC104 RPi-GPIO-SKT-TH-EXT_002 | SKT-02x20-TH-EXT | J6 |
| 1 | A0512S-2WR2 A0512S-2W-1.5KV-SIP_002 | Converter_DCDC_XP_POWER-IHxxxxS_THT | PS1 |
| 1 | SMBJ5339B ZENER-5.6V-5W-SMB_003 | D_SMB | D1 |
| 3 | XL-1005SURC LED-RED-0402_002 | LED_0402_1005Metric | D2, D3, D4 |
| 1 | PBY100505T-601Y-N FERR-BEAD-600OHM@100MHZ-0.7A-0.34OHM-0402 | L_0402_1005Metric | FB1 |
| 3 | WIP252012P-4R7ML IND-4.7U-20%-1.55A-0.196OHM-1008_002 | L_1008_2520Metric | L1, L2, L3 |
| 14 | HGC0603R5106M160NTHJ CAP-10U-20%-16V-X5R-0603_004 | C_0603_1608Metric | C1, C4, C5, C7, C8, C13, C14, C18 +6 |
| 3 | CGA0603X7R104K500JT CAP-100N-10%-50V-X7R-0603_002 | C_0603_1608Metric | C2, C11, C12 |
| 4 | RVT1A471M0607 CAP-EL-470U-20%-10V-ALUM-6.3MM-7.7MM_002 | CP_Elec_6.3x7.7 | C3, C6, C9, C10 |
| 4 | RVT1C101M0505 CAP-EL-100U-20%-16V-ALUM-5.0MM-5.4MM_002 | CP_Elec_5x5.4 | C15, C16, C17, C24 |
Show 12 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 6 | FCC0402B104K160AT CAP-100N-10%-16V-X7R-0402_002 | C_0402_1005Metric | C20, C21, C28, C29, C31, C33 |
| 12 | CGA0402X5R225M160GT CAP-2.2U-20%-16V-X5R-0402_002 | C_0402_1005Metric | C25, C30, C34, C35, C50, C51, C52, C53 +4 |
| 7 | HGC0402R5475M100NTEJ CAP-4.7U-20%-10V-X5R-0402_002 | C_0402_1005Metric | C36, C37, C56, C57, C58, C59, C60 |
| 4 | CGA0402C0G471J500GT CAP-470P-5%-50V-C0G-0402_002 | C_0402_1005Metric | C38, C39, C40, C41 |
| 8 | GRM1555C1H222GA01D CAP-2.2N-2%-50V-C0G-0402_001 | C_0402_1005Metric | C42, C43, C44, C45, C46, C47, C48, C49 |
| 3 | 0402WGJ0102TCE RES-1K-5%-0.063W-0402_002 | R_0402_1005Metric | R1, R2, R3 |
| 5 | RTT021002FTH RES-10K-1%-0.063W-0402_002 | R_0402_1005Metric | R4, R5, R7, R13, R15 |
| 1 | FRC0603F3R30TS RES-3.3-1%-0.1W-0603_002 | R_0603_1608Metric | R6 |
| 4 | FRC0603F0000TS RES-0-1%-0.1W-0603_002 | R_0603_1608Metric | R8, R9, R10, R11 |
| 14 | FRC0402F10R0TS RES-10-1%-0.063W-0402_002 | R_0402_1005Metric | R12, R17, R18, R19, R20, R41, R42, R43 +6 |
| 2 | FRC0402F3901TS RES-3.9K-1%-0.063W-0402_002 | R_0402_1005Metric | R14, R16 |
| 20 | RT0402BRD07806RL RES-806-0.1%-0.063W-THIN-0402_001 | R_0402_1005Metric | R21, R22, R23, R24, R25, R26, R27, R28 +12 |
Lightsabre dac design files
The KiCad project lives in the Darmur/lightsabre-dac repository on GitHub; these links point at the commit this page was built from.
Lightsabre dac: common questions
How big is the Lightsabre dac PCB?
The Lightsabre dac measures 65 × 56 mm, has 4 copper layers and is 1.6 mm thick.
How many components are on the Lightsabre dac?
137 components, from 32 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the Lightsabre dac design files?
From the Darmur/lightsabre-dac repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the Lightsabre dac design in my own project?
Yes, under the terms of its CC0-1.0 license, which Darmur chose for the repository.
Similar boards
KLOR
GEIGEIGEIST
160.2 × 118.3 mm79 parts2LGPL-3.01.2k
Breakout 112pin Connector
rusefi
174 × 58 mm39 parts2LGPL-3.01.2k
134pin 7-967288-1
139.7 × 73.7 mm38 parts2LGPL-3.01.2k
Eecv breakout
140.8 × 53.7 mm9 parts4LGPL-3.01.2k
Breakout 60pin EEC-IV
139.7 × 62.2 mm15 parts2LGPL-3.01.2k
88 Pin Vag Breakout
142 × 58 mm91 parts2LGPL-3.01.2k