HardLabs

Usb headphone amp

embediver·usb-headphone-amp

Usb headphone amp PCB layout, top view — open source RP2040/RP2350 board by embediver

About the Usb headphone amp PCB

Usb headphone amp is an open source RP2040/RP2350 PCB design by embediver, published on GitHub. It is a 2-layer board measuring 50 × 85 mm, with 135 components from 46 distinct parts.

Its main chip is the RP2040, from the RP2040/RP2350 family. Other key parts include the NE5532, W25Q16JVSS, WE-TVS-82400102, PCM5102A and TPS76933. By type, the board carries 63 capacitors, 41 resistors, 13 ICs, 7 inductors, 3 connectors and 3 switches.

It belongs with the audio designs in this gallery.

From the project

USB Headphone Amplifier based on RP2040, PCM5102A and NE5532.

Main components on the Usb headphone amp

NE5532W25Q16JVSSWE-TVS-82400102RP2040PCM5102ATPS76933

Usb headphone amp bill of materials (BOM)

135 components, 46 distinct parts.

QtyPartRefs
8
NE5532
U1, U2, U3, U4, U5, U6, U7, U8
1
W25Q16JVSS
U9
1
WE-TVS-82400102
U10
1
RP2040
U11
1
PCM5102A
U12
1
TPS76933
U14
1
IRLML2502
Q1
1
12MHz SMD3225-4P
Y1
1
AudioJack3
J1
1
USB_C_Receptacle_USB2.0_16P
J2
1
SWD
J3
1
ACM7060
FL1
1
SolderJumper_3_Bridged12
JP1
1
IA0505S
PS1
1
BOOTSEL
SW1
1
ED08905M-FE13C
SW2
1
SW_Push
SW3
1
FerriteBead or 10R
FB1
3
1uH/52mOhm
L1, L5, L6
2
L
L2, L3
Show 26 more
QtyPartRefs
1
WE-CNSW_744232090
L4
33
100n/16V
C1, C4, C7, C8, C11, C12, C13, C16 +25
2
1n
C2, C5
1
1u/16V
C3
5
10u/16V
C6, C9, C10, C19, C20
2
100p/C0G
C14, C15
3
220u/16V
C21, C22, C28
5
2u2
C25, C34, C39, C47, C48
1
680n
C27
2
20p/25V/C0G
C29, C30
4
10u
C44, C46, C53, C55
1
1u
C49
2
2n2/C0G
C52, C54
1
22u
C56
1
100n
C64
9
10k
R1, R2, R5, R6, R35, R38, R39, R40 +1
7
1k
R3, R4, R7, R8, R9, R10, R27
2
1k8
R11, R12
12
1R
R13, R14, R15, R16, R17, R18, R19, R20 +4
2
0R
R25, R26
2
5k1
R28, R29
2
27R
R30, R31
1
1k
R32
2
470R
R36, R37
1
100k
R42
1
10k
R43

Usb headphone amp design files

The KiCad project lives in the embediver/usb-headphone-amp repository on GitHub; these links point at the commit this page was built from.

Usb headphone amp: common questions

What microcontroller does the Usb headphone amp use?

The Usb headphone amp is built around the RP2040, from the RP2040/RP2350 family.

How big is the Usb headphone amp PCB?

The Usb headphone amp measures 50 × 85 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Usb headphone amp?

135 components, from 46 distinct parts. The full bill of materials is listed on this page.

Where can I download the Usb headphone amp design files?

From the embediver/usb-headphone-amp repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Usb headphone amp design in my own project?

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

Can I test firmware for the Usb headphone amp without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug RP2040/RP2350 firmware against it before you order a PCB.

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