4 layers118 × 117 mm
Cm4-robot
Twisted-Fields/acorn-robot-electronics
PCB hardware designs in KICAD for Acorn, the precision farming rover from Twisted Fields.
268 parts81
4 layers89.5 × 70 mm
SFP lvds FMC card
- Size
- 89.5 × 70 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 60
- Nets
- 136
- Pads
- 413
- Tracks, vias
- 706, 105
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 3 May 2024
- Updated
- 24 Jul 2025
Overview
Fmc sfp is an open-source printed circuit board by MicroRidge-Technology, from the MicroRidge-Technology/SFP-FMC repository on GitHub. It is a 4-layer board of 89.5 × 70 mm with 60 parts on 136 nets, routed with 706 tracks and 105 vias.
It is built around the MAX9113EKA+T, TXS0108EPW and ASP-134604-01, with the DSHP04TSGET among its other parts. Its parts include 28 resistors, 8 capacitors, 7 connectors, 4 ICs and 1 switch.
Main components
4
MAX9113EKA+T
SOT-23-8LVDS ICsMaxim Integrated (Analog Devices)
TXS0108EPW
TSSOP-20-40℃~+85℃ 1 1.4V~3.6V 1.65V~5.5V 60Mbps 8 Automatic direction detection、Output enable high-impedance、Integrated pull-up resistor Bidirectional Level translator Push-Pull、Open-drain TSSOP-20 Translators, Level Shifters ROHSTexas InstrumentsTranslators, Level Shifters
ASP-134604-01
SMD,P=1.27mm1.27mm 160P 4 Copper alloy Gold Surface Mount,Vertical SMD,P=1.27mm Board-to-Board and Backplane Connector ROHSSamtecBoard-To-Board And Backplane Connector
DSHP04TSGET
SMD,P=1.27mm-40℃~+85℃ 1.27mm 24V 25mA 3,000 Cycles 4 Black Brass Gold Gull Wing SPST Slide, Recessed SMD,P=1.27mm DIP Switches ROHSDongGuan KINGTEK Industrial Co.,LTDDIP Switches
README
Readme.mdFMC SFP Card
This project is designed to allow using sfp cables with the LVDS pins of an FPGA as opposed to the GTX pins. It provides testpoints to monitor the lvds signals with an oscilliscope.
Pins Used
| FMC Pin | Logical Name | SFP Channel |
|---|---|---|
| D14 | FMC_LA09_P | SFP0 rx+ |
| D15 | FMC_LA09_N | SFP0 rx- |
| H7 | FMC_LA02_P | SFP0 tx+ |
| H8 | FMC_LA02_N | SFP0 tx- |
| H22 | FMC_LA19_P | SFP1 rx+ |
| H23 | FMC_LA19_N | SFP1 rx- |
| H37 | FMC_LA32_P | SFP1 tx+ |
| H38 | FMC_LA32_N | SFP1 tx- |
Schematics
Schmatics are available here
Images
Top
Bottom
Limitations
This board is designed to work with low frequency signals (<200MHz) GHz+ signals will certainly fail.
Parts
60| Qty | Value | Footprint | References |
|---|---|---|---|
| 8 | 0 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R7, R8, R9, R10, R23, R24, R25, R26 |
| 8 | 10k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R2, R3, R4, R5, R19, R20, R21, R22 |
| 8 | 1k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R13, R14, R15, R16, R17, R18, R27, R28 |
| 6 | .1u | Capacitor_SMD:C_0603_1608Metric | C1, C3, C5, C6, C7, C8 |
| 4 | 132134 | Connector_Coaxial:SMA_Amphenol_132134_Vertical | J3, J4, J9, J10 |
| 2 | 100 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1, R6 |
| 2 | 110k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R11, R12 |
| 2 | 1n | Capacitor_SMD:C_0603_1608Metric | C2, C4 |
| 2 | MAX9113EKA_TT | Package_TO_SOT_SMD:SOT-23-8 | U1, U3 |
| 2 | MountingHole_Pad | MountingHole:MountingHole_2.7mm_M2.5_ISO14580_Pad | H1, H2 |
| 2 | SFP+ | project:SFP_and_Cage | J2, J8 |
| 2 | TXS0108EPW | Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm | U2, U4 |
| 1 | ASP-134604-01 | project:SAMTEC_ASP-134604-01 | J1 |
| 1 | GND | TestPoint:TestPoint_Keystone_5015_Micro-Minature | TP9 |
| 1 | LOGO | project:Microridge_logo | G*** |
| 1 | SFP0 RX+ | TestPoint:TestPoint_Pad_D2.5mm | TP1 |
| 1 | SFP0 RX- | TestPoint:TestPoint_Pad_D2.5mm | TP2 |
| 1 | SFP0 TX+ | TestPoint:TestPoint_Pad_D2.5mm | TP3 |
| 1 | SFP0 TX- | TestPoint:TestPoint_Pad_D2.5mm | TP4 |
| 1 | SFP1 RX+ | TestPoint:TestPoint_Pad_D2.5mm | TP5 |
| 1 | SFP1 RX- | TestPoint:TestPoint_Pad_D2.5mm | TP6 |
| 1 | SFP1 TX+ | TestPoint:TestPoint_Pad_D2.5mm | TP7 |
| 1 | SFP1 TX- | TestPoint:TestPoint_Pad_D2.5mm | TP8 |
| 1 | SW_DIP_x04 | Button_Switch_SMD:SW_DIP_SPSTx04_Slide_KingTek_DSHP04TS_W7.62mm_P1.27mm | SW1 |
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Questions
How big is the Fmc sfp PCB?
It measures 89.5 × 70 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Fmc sfp use?
60 parts, built around the MAX9113EKA+T, TXS0108EPW, ASP-134604-01 and DSHP04TSGET. 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 Fmc sfp KiCad files?
From the MicroRidge-Technology/SFP-FMC repository on GitHub, at the commit this page was made from: the board is fmc-sfp.kicad_pcb and its schematic SFP.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Fmc sfp design in my own project?
Its repository states no licence, so its author keeps all rights: ask MicroRidge-Technology before reusing the design.