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Usb isolated

AllenNeuralDynamics·harp.device.pico-template·hardware/board/usb_isolated/usb_isolated.kicad_pcb

Usb isolated PCB layout, top view — open source RP2040/RP2350 board by AllenNeuralDynamics

About the Usb isolated PCB

Usb isolated is an open source RP2040/RP2350 PCB design by AllenNeuralDynamics, published on GitHub. It is a 4-layer board measuring 80 × 50 mm, with 67 components from 33 distinct parts.

Its main chip is the RP2040, from the RP2040/RP2350 family. Other key parts include the 74LVCH2T45DC, TPD2EUSB30, ADUM4160, W25Q16JVUXIQ and LT3030. By type, the board carries 29 capacitors, 20 resistors, 6 ICs, 5 connectors, 4 diodes and 1 crystal.

From the project

an RP2040-based Harp hardware/firmware project template

These schematic and layout designs have been vetted on prior devices.

High Level Specs: USBC connector (ESD protected with TVS diode). Audio jack connector for Harp synchronization signal (ESD protected with TVS diode).

Component Specs: aqueous washable commonly available components (no end-of-life or last-time-buy)

Layout Specs: 4-layer PCB signal (top), ground, power, signal (bottom) 6-mil traces, 6-mil spacing (0.1524mm) no microvias smallest resistor/capacitor sizes are 0402. Footprints default to "non-hand-soldering"-style.

Main components on the Usb isolated

74LVCH2T45DCTPD2EUSB30ADUM4160RP2040W25Q16JVUXIQLT3030

Usb isolated bill of materials (BOM)

67 components, 33 distinct parts.

QtyPartRefs
1
74LVCH2T45DC
Nexperia USA Inc.
U1
1
TPD2EUSB30
Texas Instruments
U2
1
ADUM4160
Analog Devices Inc.
U3
1
RP2040
Raspberry Pi
U4
1
W25Q16JVUXIQ
Winbond Electronics
U5
1
LT3030
Analog Devices Inc.
U12
1
ECS-TXO-2016
ECS Inc.
X1
1
Conn_01x03_Male
n/a
J2
1
AudioJack3
CUI Devices
J4
1
USB_C_Receptacle_USB2.0
JAE Electronics
J5
1
Barrel_Jack_Switch
CUI Devices
J6
1
Conn_Coaxial
TE Connectivity Linx
J7
1
~
Würth Elektronik
SW1
2
LED
SunLED
D1, D2
2
D_TVS
onsemi
D3, D4
1
L_Coupled_1423
TDK Corporation
L1
16
100nF
Walson Technology Corporation
C1, C2, C3, C5, C6, C7, C12, C13 +8
3
10nF
Yageo
C4, C46, C47
5
1uF
Murata Electronics
C8, C9, C10, C53, C56
2
10uF
Murata Electronics
C39, C48
Show 13 more
QtyPartRefs
2
3.3uF
TDK Corporation
C45, C67
1
22uF
C49
1
1K
Yageo
R1
2
5K1
Yageo
R2, R3
4
24
Yageo
R4, R5, R6, R7
1
10K
KOA Speer Electronics, Inc.
R9
2
27
Yageo
R10, R11
2
680
Yageo
R12, R13
2
100
Yageo
R30, R31
2
1M
Yageo
R36, R37
1
309K
TE Connectivity Passive Product
R38
1
172K
Koa Speer Electronics, Inc.
R39
2
100K
Yageo
R40, R41

Usb isolated design files

The KiCad project lives in the AllenNeuralDynamics/harp.device.pico-template repository on GitHub; these links point at the commit this page was built from.

Usb isolated: common questions

What microcontroller does the Usb isolated use?

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

How big is the Usb isolated PCB?

The Usb isolated measures 80 × 50 mm, has 4 copper layers and is 1.567 mm thick.

How many components are on the Usb isolated?

67 components, from 33 distinct parts. The full bill of materials is listed on this page.

Where can I download the Usb isolated design files?

From the AllenNeuralDynamics/harp.device.pico-template 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 isolated design in my own project?

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

Can I test firmware for the Usb isolated 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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