4 layers60 × 74 mm
4 layers89 × 105 mm
ELEC4907
ocm87/fmcwELEC4907 FMCW Radar Project
- Size
- 89 × 105 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 76
- Nets
- 44
- Pads
- 188
- Tracks, vias
- 174, 1
- Pours
- 109
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 19 Sep 2024
- Updated
- 16 Apr 2025
Overview
ELEC4907 is an open-source printed circuit board by ocm87, from the ocm87/fmcw repository on GitHub, published under the MIT licence. It is a 4-layer board of 89 × 105 mm with 76 parts on 44 nets, routed with 174 tracks and 1 via.
It is built around the LM2575T-3.3, LM317T and RF2-04A-T-00-50-G. Its parts include 23 resistors, 17 capacitors, 12 connectors, 5 ICs and 2 diodes.
Main components
3
LM2575T-3.3
TO-220-50℃~+85℃@(TJ) 1 1.2V~37V 1A 4.75V~40V 52kHz 5mA Buck Buck Built-in Fixed TO-220-5 DC-DC Converters ROHSHGSEMIDC-DC Converters
LM317T
TO-2200.003%Vout 0℃~+125℃@(Tj) 1 1.2V~37V 1.5A 40V 66dB@(120Hz) Adjustable Over Current Protection、Over Temperature Protection Positive TO-220 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSUMWVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
RF2-04A-T-00-50-G
插件-65℃~+165℃ 1 50Ω 6GHz Board Side Inner Bore Positive Pin SMA 插件 Coaxial Connectors (RF) ROHSADAM TECHCoaxial Connectors (RF)
README
README.mdELEC4907 FMCW/Dopper Radar Capstone Project
Year: 2024-2025
Supervisor: Shulabh Gupta
Team Members: Carter Livermore, Jin Her, Max Hecht, Owen MacIntosh
Parts
76| Qty | Value | Footprint | References |
|---|---|---|---|
| 9 | ~ | ELEC4907:2-54mm_Spacing | J2, J4, J5, J6, J7, J8, J9, J11, J12 |
| 4 | clipboard:34ff215e-6c8f-4df8-bee7-3c8d448b1db1 | , , , | |
| 4 | 27k | ELEC4907:resistor | R8, R10, R12, R13 |
| 4 | MountingHole_3.2mm_M3_ISO14580_Pad | MountingHole:MountingHole_3.2mm_M3_ISO14580_Pad | GND, GND, GND, GND |
| 3 | 100k | ELEC4907:TRIM_3296W-1-503LF | DC_ADJUST1, PREAMP_GAIN1, VR1 |
| 3 | 100pF | ELEC4907:Disc_Cap_P5mm | C10, C11, C12 |
| 3 | 100uF | ELEC4907:100uF_RadialCap | C1, C4, C17 |
| 3 | 1uF | ELEC4907:R82-D_KEM | C5, C13, C16 |
| 3 | RF2-04A-T-00-50-G | ELEC4907:CONN_RF2-04A-T-00-50-G_ADM | J1, J3, J10 |
| 2 | 100k | ELEC4907:resistor | R1, R7 |
| 2 | 10k | ELEC4907:resistor | R16, R19 |
| 2 | 1M | ELEC4907:resistor | R9, R17 |
| 2 | 1N5819 | Diode_THT:D_DO-41_SOD81_P10.16mm_Horizontal | D1, D2 |
| 2 | 1uF | ELEC4907:AxialCap_P18 | C7, C8 |
| 2 | 25k | ELEC4907:TRIM_3296W-1-503LF | VR2, VR4 |
| 2 | 330uF | ELEC4907:330uF_radialCap | C2, C3 |
| 2 | 4.7k | ELEC4907:resistor | R4, R5 |
| 2 | 82k | ELEC4907:resistor | R6, R14 |
| 1 | |||
| 1 | 0 | ELEC4907:resistor | R23 |
| 1 | 0.47uF | ELEC4907:0.47uF_cap | C6 |
| 1 | 1.5k | ELEC4907:resistor | R21 |
| 1 | 10uF | ELEC4907:Axial_Cap_P25 | C15 |
| 1 | 10uF | ELEC4907:Cap_P15 | C9 |
| 1 | 150pF | ELEC4907:Disc_Cap_P5mm | C14 |
| 1 | 220 | ELEC4907:resistor | R11 |
| 1 | 33k | ELEC4907:resistor | R3 |
| 1 | 390 | ELEC4907:resistor | R22 |
| 1 | 39k | ELEC4907:resistor | R2 |
| 1 | 43k | ELEC4907:resistor | R15 |
| 1 | 5.6k | ELEC4907:resistor | R18 |
| 1 | 50k | ELEC4907:TRIM_3296W-1-503LF | VR3 |
| 1 | 560k | ELEC4907:resistor | R20 |
| 1 | LM2575S-5.0/NOPB | ELEC4907:KTT0005B | U5 |
| 1 | LM2575T-3.3 | ELEC4907:(3v3)TO170P470X1016X2092-5P | U1 |
| 1 | LM317T | ELEC4907:TO-220_STM | U4 |
| 1 | LT1214CN-PBF | ELEC4907:PDIP-14_N_LIT | U3 |
| 1 | XR2206CP-F | ELEC4907:DIP794W56P254L2013H533Q16N | IC1 |
| 1 | ~ | ELEC4907:IND_PE-526xx_V_PUL | L1 |
| 1 | ~ | ELEC4907:330uH Inductor | L2 |
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Questions
How big is the ELEC4907 PCB?
It measures 89 × 105 mm and has 4 copper layers, 1.6 mm thick.
What parts does the ELEC4907 use?
76 parts, built around the LM2575T-3.3, LM317T and RF2-04A-T-00-50-G. 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 ELEC4907 KiCad files?
From the ocm87/fmcw repository on GitHub, at the commit this page was made from: the board is hardware/kicad/LF_Hardware/ELEC4907.kicad_pcb and its schematic hardware/kicad/CapstoneMCU/CapstoneMCU.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the ELEC4907 design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).