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Portable line mixer

sww1235·portable-line-mixer

Portable line mixer PCB layout, top view — open source board by sww1235
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About the Portable line mixer PCB

Portable line mixer is an open source PCB design by sww1235, published on GitHub under the MIT license. It is a 4-layer board measuring 77.5 × 114.3 mm, with 131 components from 35 distinct parts.

Other key parts include the LM27762, LM3880, LM1085-12V, LM1085-5V and LTC3265. By type, the board carries 62 capacitors, 37 resistors, 14 ICs, 9 diodes, 5 connectors and 1 fuse.

It belongs with the audio designs in this gallery.

From the project

A compact line level audio mixer

- 772-E25-103RYY1 norcomp db25 IP67 connector male - 772-E25-203RYY1 norcomp db25 IP67 connector female (for panelmount) - 967-025-010R011 norcomp db25 IP67 backshell for cable - SFP6725 norcomp adhesive seal db25 size - 967-025-CAP norcomp ip67 sealing cap - 160-067-004R034 norcomp db25 hardware kit - 767KS1(X) 0.084 \[2.1\] id/od sealed locking power plug switchcraft - L722AS 0.08 \[2.0\] id/od sealed locking power jack switchcraft (these sizes are compatible with high amperage version) - JCAP power jack cover - 35FM3AULS - Sealed locking 3.5mm panel mount jack switchcraft - 35HDLBAU(S)…

Main components on the Portable line mixer

LM27762LM3880LM1085-12VLM1085-5VLTC3265OPA1604DS1882

Portable line mixer bill of materials (BOM)

131 components, 35 distinct parts.

QtyPartRefs
1
LM27762
U1
1
LM3880
U2
1
LM1085-12V
U3
1
LM1085-5V
U4
1
LTC3265
U5
1
OPA1604
U6
8
DS1882
U7, U8, U9, U10, U11, U12, U13, U14
1
Power In (Male-top)
J1
1
LCD Connection I2C
J2
1
Audio Out
J3
1
Audio IN
J4
1
Encoder Connection
J5
1
5A
F1
1
Nano Reset
SW1
1
PMV45EN2
T1
1
Nano_Headers
XA1
9
0582BQ
D1, D2, D3, D4, D5, D6, D7, D8 +1
2
2u2F
C1, C3
1
0.47uF
C2
2
4u7F
C4, C5
Show 15 more
QtyPartRefs
9
10uF
C6, C7, C8, C9, C12, C13, C16, C17 +1
2
1uF
C10, C11
2
100nF
C14, C15
2
0u1F
C19, C20
24
0u01F
C21, C22, C26, C27, C28, C32, C33, C34 +16
18
1uF
C23, C24, C25, C29, C30, C31, C35, C36 +10
2
220kΩ
R1, R7
2
68kΩ
R2, R6
3
100kΩ
R3, R4, R5
2
1.3Ω
R8, R9
2
681kΩ
R10, R13
2
75kΩ
R11, R12
2
4k7
R14, R15
20
10k
R16, R17, R18, R19, R21, R22, R24, R25 +12
2
100R
R20, R23

Portable line mixer design files

The KiCad project lives in the sww1235/portable-line-mixer repository on GitHub; these links point at the commit this page was built from.

Portable line mixer: common questions

How big is the Portable line mixer PCB?

The Portable line mixer measures 77.5 × 114.3 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the Portable line mixer?

131 components, from 35 distinct parts. The full bill of materials is listed on this page.

Where can I download the Portable line mixer design files?

From the sww1235/portable-line-mixer repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the Portable line mixer design in my own project?

Yes, under the terms of its MIT license, which sww1235 chose for the repository.

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