Board
About the Board
Board is an open source PCB design by wntrblm, published on GitHub under the CC-BY-SA-4.0 license. It is a 2-layer board measuring 70.1 × 22.5 mm, with 38 components from 21 distinct parts.
Other key parts include the OPA4991IPWR and LM358PWR. By type, the board carries 11 connectors, 10 resistors, 6 diodes, 6 capacitors, 3 ICs and 2 inductors.
It belongs with the audio designs in this gallery.
From the project
A dual 1-to-4 precision buffered multiple
Hydrogen is a precision buffered multiple for 1U Eurorack.
More details available at https://winterbloom.com/shop/hydrogen
This repository contains the hardware design files and user guide for Hydrogen:
- hardware/ contains the hardware design files for the mainboard and blank panel. These are all created using KiCAD. - userguide/** contains the user's guide source files. These are written in Markdown and published using MkDocs.
Main components on the Board
Board bill of materials (BOM)
38 components, 21 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | OPA4991IPWR OPA4991 | TSSOP-14_4.4x5mm_P0.65mm | U1, U2 |
| 1 | LM358PWR | TSSOP-8_4.4x3mm_P0.65mm | U3 |
| 1 | 302-S101 Power | Eurorack_Power_2x5_Shrouded_Lock | J1 |
| 1 | IN A | AudioJack_WQP518MA_Compact_S | J2 |
| 1 | OUT A1 | AudioJack_WQP518MA_Compact_S | J3 |
| 1 | OUT A2 | AudioJack_WQP518MA_No_S | J4 |
| 1 | OUT A3 | AudioJack_WQP518MA_Compact_S | J5 |
| 1 | OUT A4 | AudioJack_WQP518MA_No_S | J6 |
| 1 | IN B | AudioJack_WQP518MA_Compact_S | J7 |
| 1 | OUT B1 | AudioJack_WQP518MA_Compact_S | J8 |
| 1 | OUT B2 | AudioJack_WQP518MA_No_S | J9 |
| 1 | OUT B3 | AudioJack_WQP518MA_Compact_S | J10 |
| 1 | OUT B4 | AudioJack_WQP518MA_No_S | J11 |
| 2 | PMEG2005EGWX 30V | D_SOD-123+SOD-123F | D1, D2 |
| 2 | APT2012VBC/D POS | LED_0805_Kingbright_APT2012 | D3, D5 |
| 2 | APT2012SURCK NEG | LED_0805_Kingbright_APT2012 | D4, D6 |
| 2 | BLM18AG102SN1D 1k @ 100MHz | L_0603_HandSolder | FB1, FB2 |
| 2 | GRM21BR61E106KA73K 10u | C_0805_HandSolder | C1, C2 |
| 4 | CL10B104KB8NNNC 100n | C_0603_HandSolder | C3, C4, C5, C6 |
| 8 | RT0603FRE0751RL 51R | R_0603_HandSolder | R1, R2, R3, R4, R5, R6, R7, R8 |
Show 1 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | RC0603JR-071K5L 1k5 | R_0603_HandSolder | R9, R10 |
Board design files
The KiCad project lives in the wntrblm/Hydrogen repository on GitHub; these links point at the commit this page was built from.
- Layouthardware/board/board.kicad_pcb
- Schematichardware/board/board.kicad_sch
Board: common questions
How big is the Board?
The Board measures 70.1 × 22.5 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Board?
38 components, from 21 distinct parts. The full bill of materials is listed on this page.
Where can I download the Board design files?
From the wntrblm/Hydrogen repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Board design in my own project?
Yes, under the terms of its CC-BY-SA-4.0 license, which wntrblm chose for the repository.
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