Atca simple loopback hub

kit-ipe·atca-simple-loopback-hub

About the Atca simple loopback hub PCB

Atca simple loopback hub is an open source RP2040/RP2350 PCB design by kit-ipe, published on GitHub under the CERN-OHL-P-2.0 license. It is a 8-layer board measuring 280 × 322.3 mm, with 194 components from 40 distinct parts.

Its main chip is the Pico, from the RP2040/RP2350 family. Other key parts include the Si5395, PIM400KZ and ADM7172. By type, the board carries 107 capacitors, 32 resistors, 23 connectors, 10 inductors, 6 fuses and 5 ICs.

Main components on the Atca simple loopback hub

Si5395PicoPIM400KZADM7172

Atca simple loopback hub bill of materials (BOM)

194 components, 40 distinct parts.

Qty	Part	Footprint	Refs
2	Si5395	QFN-64-1EP_9x9mm_P0.5mm_EP5.2x5.2mm	U1, U2
1	Pico	RPi_Pico_SMD_TH	U3
1	PIM400KZ	PIM400KZ	U4
1	ADM7172	LFCSP-8-1EP_3x3mm_P0.5mm_EP1.45x1.74mm	U5
1	DMG2305UX	TSOT-23	Q5
2	CX3225SB	Crystal_SMD_3225-4Pin_3.2x2.5mm	X1, X2
2	0826-1X4T-HS-F	BEL_0826-1X4T-HS-F	J1, J2
10	Conn_Coaxial	MMCX_Molex_73415-1471_Vertical	J4, J5, J8, J9, J10, J11, J12, J13 +2
2	SFP+	TE_1888247-1	J6, J7
1	Conn_01x03_Male	Molex_53046-0310	J14
1	TE 2007262-1	TE_2007263-1	J16
1	Conn_01x02_Pin	Wago_734-132_1x02_P3.50mm_Vertical	J18
1	TE_64690XX-1_J20	TE_6469001-1	J20
1	TE_64690XX-1_J21	TE_6469001-1	J21
1	TE_64690XX-1_J22	TE_6469001-1	J22
1	TE_64690XX-1_J23	TE_6469001-1	J23
1	TE_64690XX-1_J24	TE_6469001-1	J24
1	1766500-1	TE_1766500-1	P10
2	1A	SM2410	F1, F4
4	15A	SM2410	F2, F3, F5, F6

Show 20 more

Qty	Part	Footprint	Refs
1	Handle	81-300-00	H2
5	MountingHole	NPTH_2.7_7_Keepout	H3, H4, H5, H6, H7
2	Key_K1_K2_TE_1-1469373-1	Key_K1_K2_TE_1-1469373-1	K1, K2
10	FerriteBead	L_0603_1608Metric	FB1, FB2, FB3, FB4, FB5, FB6, FB7, FB8 +2
75	0.1uF	C_0402_1005Metric	C1, C2, C3, C4, C5, C6, C7, C8 +67
11	1uF	C_0402_1005Metric	C13, C14, C15, C16, C32, C33, C34, C35 +3
4	22uF	C_0805_2012Metric	C49, C51, C82, C84
1	1nF	C_0402_1005Metric	C50
4	10uF	C_0603_1608Metric	C56, C64, C65, C102
4	2.2uF	C_1206_3216Metric	C57, C58, C59, C60
4	20nF	C_0805_2012Metric	C61, C62, C77, C78
4	100uF	CP_Elec_18x22	C79, C80, C81, C107
13	4.7k	R_0402_1005Metric	R1, R2, R3, R4, R5, R6, R9, R10 +5
1	2k2	R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R7
1	4k7	R_0402_1005Metric	R8
2	10M 2kV	R_2010_5025Metric	R11, R12
10	50	R_0402_1005Metric	R13, R14, R15, R16, R24, R25, R26, R27 +2
2	0	R_0402_1005Metric	R20, R21
1	10k	R_0603_1608Metric	R37
2	15	R_2512_6332Metric	R41, R42

Atca simple loopback hub design files

The KiCad project lives in the kit-ipe/atca-simple-loopback-hub repository on GitHub; these links point at the commit this page was built from.

Layoutatca-simple-loopback-hub.kicad_pcb
Schematicatca-simple-loopback-hub.kicad_sch

Atca simple loopback hub: common questions

What microcontroller does the Atca simple loopback hub use?

The Atca simple loopback hub is built around the Pico, from the RP2040/RP2350 family.

How big is the Atca simple loopback hub PCB?

The Atca simple loopback hub measures 280 × 322.3 mm, has 8 copper layers and is 1.69 mm thick.

How many components are on the Atca simple loopback hub?

194 components, from 40 distinct parts. The full bill of materials is listed on this page.

Where can I download the Atca simple loopback hub design files?

From the kit-ipe/atca-simple-loopback-hub repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Atca simple loopback hub design in my own project?

Yes, under the terms of its CERN-OHL-P-2.0 license, which kit-ipe chose for the repository.

Can I test firmware for the Atca simple loopback hub 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.