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Usb audio

skiselev·usb_audio·KiCad/usb_audio.kicad_pcb

Usb audio PCB layout, top view — open source board by skiselev
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About the Usb audio PCB

Usb audio is an open source PCB design by skiselev, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 53.3 × 40.6 mm, with 78 components from 35 distinct parts.

Other key parts include the PCM2902C, REG103UA, PLR135/T8, PLT133/T6A and OPA2353. By type, the board carries 32 capacitors, 27 resistors, 6 ICs, 4 connectors, 3 switches and 2 diodes.

It belongs with the audio designs in this gallery.

From the project

Compact USB Audio Adapter

Have a well lighten workspace. Use a low power (25W or so) soldering iron with thin tip, better yet a temperature controlled soldering station. Keep the tip of soldering iron clean. Use thin solder with flux. Have some desoldering braid to remove accidental solder bridges or excess solder. I found it convenient first to put some solder on a first pad of a component (or on two opposite pads in case of an IC. When put the component using tweezers and heat the pad at the same time. Next double check component orientation and solder remaining pads. Note that diodes and tantalum capacitors are…

Usb audio, from the project README
From the project README

Main components on the Usb audio

PCM2902CREG103UAPLR135/T8PLT133/T6AOPA2353AD8656

Usb audio bill of materials (BOM)

78 components, 35 distinct parts.

QtyPartRefs
1
PCM2902C
U1
1
REG103UA
U2
1
PLR135/T8
U3
1
PLT133/T6A
U4
1
OPA2353
U5
1
AD8656
U6
1
12MHz
X1
1
USB
P1
1
USB_HEADER
P2
1
LINE_IN
P3
1
LINE_OUT
P4
2
CONN_1
HOLE1, HOLE2
1
MUTE
SW1
1
VOL_UP
SW2
1
VOL_DOWN
SW3
1
VF350mV
D1
1
POWER
D2
1
47uH
L1
3
22pF
C1, C2, C3
4
330pF
C4, C5, C6, C7
Show 15 more
QtyPartRefs
4
1.8nF
C8, C9, C10, C11
2
100nF
C12, C13
7
1uF
C14, C15, C16, C17, C18, C19, C20
10
10uF
C21, C22, C23, C24, C25, C26, C27, C28 +2
2
220uF
C31, C32
3
2.2
R1, R2, R3
2
22
R4, R5
2
100
R6, R7
1
470
R8
4
1.5k
R9, R10, R11, R12
4
3.9k
R13, R14, R15, R16
8
12k
R17, R18, R19, R20, R21, R22, R23, R24
1
13k
R25
1
27k
R26
1
1M
R27

Usb audio design files

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

Usb audio: common questions

How big is the Usb audio PCB?

The Usb audio measures 53.3 × 40.6 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Usb audio?

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

Where can I download the Usb audio design files?

From the skiselev/usb_audio repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the Usb audio design in my own project?

Yes, under the terms of its GPL-3.0 license, which skiselev chose for the repository.

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