HardLabs

Switch board

FOSDEM·video·hardware/pcbs/switch_board/switch_board.kicad_pcb

Switch board layout, top view — open source board by FOSDEM

About the Switch board

Switch board is an open source PCB design by FOSDEM, published on GitHub. It is a 4-layer board measuring 84 × 83 mm, with 97 components from 25 distinct parts.

Other key parts include the RTL8367S, TPS562231, W25Q32JVSS and 24LC64. By type, the board carries 43 resistors, 34 capacitors, 7 connectors, 5 ICs, 2 inductors and 1 crystal.

It belongs with the audio designs in this gallery.

From the project

A full build needs several parts. All of these should be easily reproducible, while for the ones where we rely on an external manufacturer, we made sure to have ample spares.

A full build needs several parts. All of these should be easily reproducible, while for the ones where we rely on an external manufacturer, we made sure to have ample spares.

You will need one of each item, except when stated otherwise.

The case is an off-the-shelf widely available 1U case, made by Gainta.

We only use the actual enclosure. All other bits can be discarded.

Main components on the Switch board

RTL8367STPS562231W25Q32JVSS24LC64

Switch board bill of materials (BOM)

97 components, 25 distinct parts.

QtyPartRefs
1
RTL8367S
U1
2
TPS562231
U2, U3
1
W25Q32JVSS
U4
1
24LC64
U5
1
TSX-3225
Y1
5
8P8C_LED
J1, J2, J3, J4, J5
1
I/O
J6
1
Power
J7
5
G2406S
TR1, TR2, TR3, TR4, TR5
2
1.5uH
L1, L2
2
27pF
C1, C2
15
100nF
C3, C4, C5, C6, C7, C8, C9, C10 +7
2
885012206126
100nF
C11, C20
4
885012206126
10uF
C12, C13, C21, C24
5
1nF
C14, C15, C16, C17, C18
6
885012206126
22uF
C19, C22, C23, C25, C26, C27
20
75
R1, R4, R5, R6, R7, R10, R17, R20 +12
1
4.99k
R2
2
10k
R3, R9
1
39k
R8
Show 5 more
QtyPartRefs
14
4.7k
R11, R14, R26, R27, R32, R37, R38, R39 +6
2
1k
R12, R49
1
2.49k
R13
1
6.2k
R15
1
3.3k
R16

Switch board design files

The KiCad project lives in the FOSDEM/video repository on GitHub; these links point at the commit this page was built from.

Switch board: common questions

How big is the Switch board?

The Switch board measures 84 × 83 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the Switch board?

97 components, from 25 distinct parts. The full bill of materials is listed on this page.

Where can I download the Switch board design files?

From the FOSDEM/video repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Switch board design in my own project?

The repository has no license, so all rights stay with FOSDEM. Use it as a reference, and ask the author before reusing the design.

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