2 layers51.5 × 63 mm
Usb hub dac
Person20020/usb-hub-dac
A simple USB hub with 3 USB C outputs and a built in DAC for a 3.5mm audio output. It uses a SL2.1a USB hub controller and a PCM2902 DAC.
46 parts1GPL-3.0
2 layers90 × 55 mm
Usbuh
jphwba/usbuhThis is a USB Hub that features USB-C input, an Auxilary Port with Audio in and out, three USB-A 2.0 ports, two USB-C 2.0 ports and a micro SD Card slot.
- Size
- 90 × 55 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 70
- Nets
- 88
- Pads
- 326
- Tracks, vias
- 785, 93
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 19 Aug 2026
- Updated
- 29 Sep 2026
Overview
Usbuh is an open-source printed circuit board by jphwba, from the jphwba/usbuh repository on GitHub. It is a 2-layer board of 90 × 55 mm with 70 parts on 88 nets, routed with 785 tracks and 93 vias.
It is built around the FE1.1S, PCM2902E and AMS1117-3.3. Its parts include 26 capacitors, 19 resistors, 5 ICs, 5 fuses and 3 crystals.
Main components
3FE1.1S
SSOP-28USB 2.0 USB Hub SSOP-28 USB Converters ROHSTerminus TechUSB Converters
PCM2902E
SSOP-28-25℃~+85℃ 4.35V~5.25V 8kHz~48kHz Encoder/decoder USB SSOP-28 Audio Interface ICs ROHSTexas InstrumentsAudio Interface ICs
AMS1117-3.3
SOT-223-40℃~+125℃ 0.003%Vout 1 1.1V@(800mA) 15V 1A 3.3V 5mA 72dB@(120Hz) Fixed Over Current Protection、Short Circuit Protection、Thermal shutdown Positive SOT-223 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSAdvanced Monolithic SystemsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
README
README.mdUsbuh
This is a USB Hub that features USB-C input, an Auxilary Port with Audio in and out, three USB-A 2.0 ports, two USB-C 2.0 ports and a micro SD Card slot. The main USB hub controllers are two FE1.1s's, a GL823K for the micro-sd controller, an AMS1117-3.3 to step down 5v connections into 3v3 and a PCM2902E for the audio controller. I made this because on my desk the area where my PC is requires the top IO to be blocked which had all of these ports and there was no space to run a cable it was a very tight gap so my current solution is running a $5 temu adapter which goes through a USB-C to USB-A adapter ($0.30 from temu) and a USB1.0 extension cable, so my devices do run pretty slow. So I decided to make this. SInce I'm not very experienced with KiCad and with PCB's and everything, I found USB3.0 a bit more complex and I realised that my design was USB2.0 only too far into the project so I just stuck with 2.0. I also decided later in the project that I wanted an aux port since my headset has an audio/mic combo port and my PC only has split and the adapter I used doesn't work.
Printing Notice
Please print 5 connector brakets as there is only 1 in the step file.
Assembly
The USB Hub has a pretty simple assembly requiring only 4 screws. First in the base plate 4 heatset inserts (M2x3.2mm) go into the standoffs. Then the pcb just goes on top and is screwed in. After this, the walls are placed just on top of the base plate and is attatched with connector brackets I made which go along the sides. Then the top plate just props ontop of the walls and then the front cover is attatched by just pressing it into the front of the assembly.
Images
PCB
PCB Render
Schematic
PCB Order
Bill of Materials: PLEASE NOTE ALL PRICES ARE IN AUSTRALIAN DOLLARS
|Reference |Qty|Value |Footprint |Datasheet |Item Name |Qty|Variation |Price (AUD)|Shipping Fee (If Applicable)|Reference |
| Reference | Qty | Value | Footprint | Datasheet | Item Name | Qty | Variation | Price (USD) | Shipping Fee (If Applicable) | Reference |
|---|---|---|---|---|---|---|---|---|---|---|
| AUX_1 | 1 | AudioJack4 | Connector_Audio:Jack_3.5mm_PJ320D_Horizontal | PJ-320D | 10 | 3.5mm Headphone Jack 0.5A 30V Surface Mount | $0.51 | https://www.lcsc.com/product-detail/C431535.html | ||
| C1,C2,C8,C9,C13 | 5 | 10uF | Capacitor_SMD:C_0805_2012Metric | CS2012X7R106M100NRE | 10 | 10uF �20% 10V Ceramic Capacitor X7R 0805 | $0.81 | https://www.lcsc.com/product-detail/C5189822.html | ||
| C3,C6,C7,C10,C15 | 5 | 100nF | Capacitor_SMD:C_0805_2012Metric | CL21B104KBCNNNC | 20 | 100nF �10% 50V Ceramic Capacitor X7R 0805 | $0.30 | https://www.lcsc.com/product-detail/C1711.html | ||
| C4,C5,C11,C12,C22,C23 | 6 | 22pF | Capacitor_SMD:C_0805_2012Metric | CL21C220JBANNNC | 50 | 22pF �5% 50V Ceramic Capacitor C0G 0805 | $0.62 | https://www.lcsc.com/product-detail/C1804.html | ||
| C14 | 1 | 22uF | Capacitor_SMD:C_1206_3216Metric | CL21A226MOQNNNE | 10 | 22uF �20% 16V Ceramic Capacitor X5R 0805 | $1.06 | https://www.lcsc.com/product-detail/C98190.html | ||
| C16,C17,C19,C20,C21,C26 | 6 | 1uF | Capacitor_SMD:C_0805_2012Metric | CL21B105KAFNNNE | 10 | 1uF �10% 25V Ceramic Capacitor X7R 0805 | $0.41 | https://www.lcsc.com/product-detail/C116352.html | ||
| C18 | 1 | 2.2uF | Capacitor_SMD:C_0805_2012Metric | CL21A225KBQNNNE | 10 | 2.2uF �10% 50V Ceramic Capacitor X5R 0805 | $0.54 | https://www.lcsc.com/product-detail/C377773.html | ||
| C24,C25 | 2 | 100uF | Capacitor_SMD:C_1210_3225Metric | CL21A107MQYNNWE | 4 | 100uF �20% 6.3V Ceramic Capacitor X5R 0805 | $2.95 | https://www.lcsc.com/product-detail/C6882730.html | ||
| F1,F2,F5,F6,F7 | 5 | 1A | Fuse:Fuse_1206_3216Metric | BSMD1206-100-30V | 10 | Polymeric PTC Resettable Fuse 30V 1A Surface Mount 1206 | $1.01 | https://www.lcsc.com/product-detail/C5358568.html | ||
| Input1,USB_C_1,USB_C_2 | 3 | USB_C_Receptacle_USB2.0_16P | Connector_USB:USB_C_Receptacle_GCT_USB4105-xx-A_16P_TopMnt_Horizontal | https://www.usb.org/sites/default/files/documents/usb_type-c.zip | USB4105-GF-A-060 | 3 | USB 2.0 1 12P -40?~+85? Surface Mount, Right Angle SMD USB, DVI, HDMI Connector Assemblies RoHS | $4.42 | https://www.lcsc.com/product-detail/C3025063.html | |
| MICRO_SD1 | 1 | Micro_SD_Card | Connector_Card:microSD_HC_Hirose_DM3AT-SF-PEJM5 | https://www.we-online.com/components/products/datasheet/693072010801.pdf | DM3AT-SF-PEJM5 | 1 | Micro SD card (TF card) Connector and Ejector Push-Push Surface Mount | $1.40 | https://www.lcsc.com/product-detail/C114218.html | |
| R1,R2 | 2 | 5.1k | Resistor_SMD:R_0805_2012Metric | 0805W8F5101T5E | 100 | 5.1k? �1% 125mW 0805 Thick Film Resistor | $0.53 | https://www.lcsc.com/product-detail/C27834.html | ||
| R3,R11 | 2 | 2.7k | Resistor_SMD:R_0805_2012Metric | FRC0805J272 TS | 100 | 2.7k? �5% 125mW 0805 Thick Film Resistor | $0.32 | https://www.lcsc.com/product-detail/C2907305.html | ||
| R4,R5,R6,R7,R8,R9,R10,R12 | 8 | 10k | Resistor_SMD:R_0805_2012Metric | FRC0805F1002TS | 100 | 10k? �1% 125mW 0805 Thick Film Resistor | $0.34 | https://www.lcsc.com/product-detail/C2907219.html | ||
| R13,R14,R15,R16 | 4 | 56k | Resistor_SMD:R_0805_2012Metric | 0805W8F5602T5E | 100 | 56k? �1% 125mW 0805 Thick Film Resistor | $0.30 | https://www.lcsc.com/product-detail/C17756.html | ||
| R17,R18 | 2 | 22 | Resistor_SMD:R_0805_2012Metric | FRC0805J220 TS | 100 | 22? �5% 125mW 0805 Thick Film Resistor | $0.33 | https://www.lcsc.com/product-detail/C2907310.html | ||
| R19 | 1 | 2.2k | Resistor_SMD:R_0805_2012Metric | 0805W8F2201T5E | 100 | 2.2k? �1% 125mW 0805 Thick Film Resistor | $0.44 | https://www.lcsc.com/product-detail/C17520.html | ||
| U1,U2 | 2 | FE1.1s | Package_SO:SSOP-28_3.9x9.9mm_P0.635mm | https://cdn-shop.adafruit.com/product-files/2991/FE1.1s+Data+Sheet+(Rev.+1.0).pdf | FE1.1S-BSOP28BCN | 2 | 4 USB Hub 480Mbps USB 2.0 SSOP-28-150mil Interface Controllers RoHS | $1.39 | https://www.lcsc.com/product-detail/C9359.html | |
| U3 | 1 | GL823K | GL823K:SOP64P600X175-16N | GL823K-HCY04 | 1 | USB to SD 480Mbps USB 2.0 SSOP-16-150mil Interface Controllers RoHS | $0.46 | https://www.lcsc.com/product-detail/C284879.html | ||
| U4 | 1 | AMS1117-3.3 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | http://www.advanced-monolithic.com/pdf/ds1117.pdf | AMS1117-3.3 | 5 | 3.3V Positive Fixed SOT-223 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators RoHS | $1.05 | https://www.lcsc.com/product-detail/C6186.html | |
| U5 | 1 | PCM2902 | Package_SO:SSOP-28_5.3x10.2mm_P0.65mm | http://www.ti.com/lit/ds/symlink/pcm2902c.pdf | PCM2902CDBR | 1 | Encoder/decoder USB 8kHz~48kHz SSOP-28 CODECS RoHS | $12.21 | https://www.lcsc.com/product-detail/C2651869.html | |
| USB_A_1 | 1 | USB_A | Connector_USB:USB_A_Receptacle_GCT_USB1046 | USB1046-GF-0190-L-B-A | 1 | USB 2.0 1 4P -40?~+85? SMD USB, DVI, HDMI Connector Assemblies RoHS | $1.35 | https://www.lcsc.com/product-detail/C6307429.html | ||
| USB_A_STACKED_2&3 | 1 | USB_A_Stacked | Connector_USB:USB_A_Wuerth_61400826021_Horizontal_Stacked | 907-111A1012D10200 | 5 | USB-A (USB TYPE-A) Receptacle Connector 8 Position Through Hole | $0.93 | https://www.lcsc.com/product-detail/C2341.html | ||
| Y1,Y2,Y3 | 3 | 12MHz | Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm | X322512MSB4SI | 5 | Crystal 12MHz �10ppm 20pF SMD3225-4P | $0.48 | https://www.lcsc.com/product-detail/C9002.html | ||
| Heatset Inserts | 4 | M2x3.2mm | M2x3.2mm heatset insert | 4 | Brass Threaded Heat-Set Insert [M2x3x3.2] | $2.16 | $10.00 | https://www.3dprintergear.com.au/m2-brass-threaded-heat-set-insert | ||
| PCB | 1 | 90x55 | JLPCB | $23.00 | ||||||
| Printing Legion | 1 | $14.00 | ||||||||
| LCSC Shipping | LCSC Shipping - 4PX | $14.97 | ||||||||
| Total Price: | $98.29 | |||||||||
Parts
70| Qty | Value | Footprint | References |
|---|---|---|---|
| 8 | 10k | Resistor_SMD:R_0805_2012Metric | R4, R5, R6, R7, R8, R9, R10, R12 |
| 6 | 1uF | Capacitor_SMD:C_0805_2012Metric | C16, C17, C19, C20, C21, C26 |
| 6 | 22pF | Capacitor_SMD:C_0805_2012Metric | C4, C5, C11, C12, C22, C23 |
| 5 | 100nF | Capacitor_SMD:C_0805_2012Metric | C3, C6, C7, C10, C15 |
| 5 | 10uF | Capacitor_SMD:C_0805_2012Metric | C1, C2, C8, C9, C13 |
| 5 | 1A | Fuse:Fuse_1206_3216Metric | F1, F2, F5, F6, F7 |
| 4 | 56k | Resistor_SMD:R_0805_2012Metric | R13, R14, R15, R16 |
| 4 | MountingHole | MountingHole:MountingHole_2.1mm | H1, H2, H3, H4 |
| 3 | 12MHz | Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm | Y1, Y2, Y3 |
| 3 | USB_C_Receptacle_USB2.0_16P | Connector_USB:USB_C_Receptacle_GCT_USB4105-xx-A_16P_TopMnt_Horizontal | Input1, USB_C_1, USB_C_2 |
| 2 | 100uF | Capacitor_SMD:C_1210_3225Metric | C24, C25 |
| 2 | 2.7k | Resistor_SMD:R_0805_2012Metric | R3, R11 |
| 2 | 22 | Resistor_SMD:R_0805_2012Metric | R17, R18 |
| 2 | 5.1k | Resistor_SMD:R_0805_2012Metric | R1, R2 |
| 2 | FE1.1s | Package_SO:SSOP-28_3.9x9.9mm_P0.635mm | U1, U2 |
| 1 | 2.2k | Resistor_SMD:R_0805_2012Metric | R19 |
| 1 | 2.2uF | Capacitor_SMD:C_0805_2012Metric | C18 |
| 1 | 22uF | Capacitor_SMD:C_1206_3216Metric | C14 |
| 1 | AMS1117-3.3 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U4 |
| 1 | AudioJack4 | Connector_Audio:Jack_3.5mm_PJ320D_Horizontal | AUX_1 |
| 1 | LOGO | LOGO | G*** |
| 1 | Micro_SD_Card | Connector_Card:microSD_HC_Hirose_DM3AT-SF-PEJM5 | MICRO_SD1 |
| 1 | PCM2902 | Package_SO:SSOP-28_5.3x10.2mm_P0.65mm | U5 |
| 1 | USB_A | Connector_USB:USB_A_Receptacle_GCT_USB1046 | USB_A_1 |
| 1 | USB_A_Stacked | Connector_USB:USB_A_Wuerth_61400826021_Horizontal_Stacked | USB_A_STACKED_2&3 |
| 1 | ~ | GL823K:SOP64P600X175-16N | U3 |
Questions
How big is the Usbuh PCB?
It measures 90 × 55 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Usbuh use?
70 parts, built around the FE1.1S, PCM2902E and AMS1117-3.3. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Usbuh KiCad files?
From the jphwba/usbuh repository on GitHub, at the commit this page was made from: the board is PCB/usbuh.kicad_pcb and its schematic PCB/usbuh.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Usbuh design in my own project?
Its repository states no licence, so its author keeps all rights: ask jphwba before reusing the design.
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