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All

Scaniox·headphones·electronics/stencil/all.kicad_pcb

All PCB layout, top view — open source Microchip SAM board by Scaniox

About the All PCB

All is an open source Microchip SAM PCB design by Scaniox, published on GitHub. It is a 2-layer board measuring 45 × 51 mm, with 117 components from 44 distinct parts.

Its main chip is the ATSAMD21G18_QFN, from the Microchip SAM family. Other key parts include the AS3435-EQFM, BM83, MCP73831T-2ACI/OT, SPX3819-3.3 and MAX17048G+T10. By type, the board carries 47 capacitors, 46 resistors, 10 ICs, 7 connectors, 3 switches and 3 diodes.

It belongs with the audio designs in this gallery.

Main components on the All

AS3435-EQFMBM83ATSAMD21G18_QFNMCP73831T-2ACI/OTSPX3819-3.3MAX17048G+T10AP2127K-1.8AP22814AW5

All bill of materials (BOM)

117 components, 44 distinct parts — part numbers from the project's BOM.

QtyPartRefs
2
AS3435-EQFM
IC1, IC2
1
BM83
ATtiny441-M
U1
1
ATSAMD21G18_QFN
AP22814AW5
U2
1
MCP73831T-2ACI/OT
U3
1
SPX3819-3.3
U4
1
MAX17048G+T10
U5
1
AP2127K-1.8
U6
2
AP22814AW5
U7, U8
1
32.768KHZ
8Mhz
Y1
1
connectors_board
J1
1
Audio In
J2
1
Main board
J3
1
programming
J5
1
Batt
J6
1
FB_Filters
J23
1
FF_Filters
J24
1
jog stick
SW1
1
reset_button
SW2
1
Volume down
SW3
1
RED
D1
Show 24 more
QtyPartRefs
2
MBR120
D2, D3
19
10UF
10uF
C1, C6, C7, C8, C9, C10, C11, C12 +11
7
1UF
1uF
C2, C3, C17, C54, C75, C76, C77
2
22PF
22pF
C4, C5
2
470NF
470nF
C14, C43
4
22nF
C26, C28, C34, C36
6
33nF
C27, C30, C32, C35, C38, C40
4
4.7nF
C29, C33, C37, C41
2
15nF
C31, C39
1
0.1UF
0.1uF
C78
9
2.2K
2.2k
R1, R8, R9, R10, R11, R43, R47, R49 +1
2
100K
100k
R2, R3
1
6.8K
R4
1
100K
50k
R5
6
10K
10k
R6, R7, R42, R44, R74, R75
5
3k
R12, R23, R25, R32, R34
3
22K
22k
R13, R14, R16
2
6.2K
6.2k
R15, R18
3
1k
R17, R30, R39
2
5.5k
R24, R33
6
22k
R26, R27, R29, R35, R36, R38
4
6.2k
R28, R31, R37, R40
1
200
R72
1
68K
68k
R73

All design files

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

All: common questions

What microcontroller does the All use?

The All is built around the ATSAMD21G18_QFN, from the Microchip SAM family.

How big is the All PCB?

The All measures 45 × 51 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the All?

117 components, from 44 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 All design files?

From the Scaniox/headphones repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the All design in my own project?

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

Can I test firmware for the All without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug Microchip SAM firmware against it before you order a PCB.

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