4 layers32.4 × 38.1 mm
2 layers50.5 × 34.8 mm
FPGA Pre Test
bsiyoung/FPGA_Pre_TestTesting power rails and oscillator waveforms for FPGA use.
- Size
- 50.5 × 34.8 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 50
- Nets
- 29
- Pads
- 128
- Tracks, vias
- 285, 39
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 4 Oct 2025
- Updated
- 2 Nov 2025
Overview
FPGA Pre Test is an open-source printed circuit board by bsiyoung, from the bsiyoung/FPGA_Pre_Test repository on GitHub, published under the MIT licence. It is a 2-layer board of 50.5 × 34.8 mm with 50 parts on 29 nets, routed with 285 tracks and 39 vias.
It is built around the TPS62147RGXT, ZMR330FTA and T50201500000G, with the 219-4MST, ASDMB-25.000MHZ-XY-T and JS202011SCQN among its other parts. Its parts include 21 resistors, 11 capacitors, 4 ICs, 2 connectors and 2 switches. It belongs with the fPGA and programmable logic boards and the FPGA and CPLD boards of this library.
Main components
6
TPS62147RGXT
VQFN-11(2x3)-40℃~+125℃@(TJ) 1 1.25MHz、2.5MHz 2A 3V~17V Buck Buck Built-in Yes VQFN-11(2x3) DC-DC Converters ROHSTexas InstrumentsDC-DC Converters
ZMR330FTA
SOT-23-55℃~+125℃@(Ta) 1 170uA 24V 3.3V 50mA 55dB@(120Hz) 80uVrms Fixed Over Current Protection、Over Temperature Protection、Short Circuit Protection Positive SOT-23 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSDiodes IncorporatedVoltage Regulators - Linear, Low Drop Out (LDO) RegulatorsT50201500000G
插件,P=3.5mm插件,P=3.5mm Screw Terminal Blocks ROHSAmphenolPluggable System Terminal Block
219-4MST
SMD-55℃~+85℃ 100mA 2,000 cycles 20V 4 Gull Wing SPST Slide, Rocked SMD DIP Switches ROHSCTS Electronic ComponentsDIP SwitchesASDMB-25.000MHZ-XY-T
SMD2520-4P1.8V~3.3V ±10ppm SMD2520-4P Programmable Oscillators ROHSAbraconProgrammable Oscillators
JS202011SCQN
SMD-40℃~+85℃ 300mA 5,000 cycles 5.5mm 6V DPDT Rectangular Columnar SMD(SMT) Tab Surface Mount,Vertical SMD Slide Switches ROHSC&KSlide Switches
README
README.mdFPGA_Pre_Test
This simple project is for testing power rails and external oscillator to use them on FPGA circuit design.
1. Objectives
- Check power rails ON/OFF sequencing works properly
- Check oscillator(25MHz) works properly
- Get output voltage ripple data by
- different output capacitance(~200uF) of buck converter
- different output voltages(1.0~5.0V) of buck converter
- different load(resistive, ~1.5W consume)
2. Directores
| Directory | Description |
|---|---|
| calculation | files for calculation |
| datasheet | datasheets of components |
| diagrams | diagrams images |
| eda_model | EDA model files for KiCAD |
| kicad_proj | KiCAD project directory |
| pcb | PCB images and gerber file |
| readme_img | image for readme file |
| schematic | schematic jpg and pdf file |
3. Architecture Diagram
3.1 Module Diagram
3.2 Block Diagram
3.3 Ports Diagram
4. Circuit Schematic
Footprints of resistors R16~20 will be used as solder jumper.
Date of basis for price calculation : 2025.10.21.
Refer to component_list.xlsx for details.
* Exclude PCB(USD$20.84/5pcs) and resistive load(USD$8.40).
Total: USD$27.203/pcs (incldue PCB and resistive load)
5. PCB Design
Manufacturer : JLC PCB
Gerber File : ./pcb/pcb_gerber.zip (zip file of ./kicad_proj/output)
Parts
50| Qty | Value | Footprint | References |
|---|---|---|---|
| 7 | TestPoint | TestPoint:TestPoint_Pad_D1.5mm | TP_LOAD_GND1, TP_LOAD_VCC1, TP_OSC_GND1, TP_OSC_OUT1, TP_SEQ_FLAG_NC1, TP_SEQ_FLAG1, TP_SEQ_FLAG2 |
| 5 | 0 | Resistor_SMD:R_1206_3216Metric | R16, R17, R18, R19, R20 |
| 5 | 100k | Resistor_SMD:R_0603_1608Metric | R2, R3, R4, R5, R8 |
| 3 | 205k | Resistor_SMD:R_0603_1608Metric | R6, R10, R12 |
| 2 | 100uF | Capacitor_SMD:C_1206_3216Metric | C10, C11 |
| 2 | 130k | Resistor_SMD:R_0603_1608Metric | R7, R11 |
| 2 | 22nF | Capacitor_SMD:C_0402_1005Metric | C4, C6 |
| 2 | 22uF | Capacitor_SMD:C_0805_2012Metric | C5, C8 |
| 2 | 74479325207222 | 74479325207222:74479325207222 | L1, L2 |
| 2 | T50201500000G | T50201500000G:T50201500000G | J1, J2 |
| 2 | TPS62147RGXT | TPS62147RGXT:TPS62147RGXT | IC3, IC4 |
| 1 | 102k | Resistor_SMD:R_0603_1608Metric | R15 |
| 1 | 10uF | Capacitor_SMD:C_0603_1608Metric | C7 |
| 1 | 14.7k | Resistor_SMD:R_0603_1608Metric | R21 |
| 1 | 219-4MST | 219-4MST:2194MST | S2 |
| 1 | 226k | Resistor_SMD:R_0603_1608Metric | R9 |
| 1 | 22uF | Capacitor_SMD:C_1206_3216Metric | C1 |
| 1 | 33k | Resistor_SMD:R_0603_1608Metric | R1 |
| 1 | 4.7uF | Capacitor_SMD:C_0603_1608Metric | C3 |
| 1 | 4.7uF | Capacitor_SMD:C_0805_2012Metric | C2 |
| 1 | 47uF | Capacitor_SMD:C_1210_3225Metric | C9 |
| 1 | 54.9k | Resistor_SMD:R_0603_1608Metric | R13 |
| 1 | 634k | Resistor_SMD:R_0603_1608Metric | R14 |
| 1 | ASDMB-25.000MHZ-XY-T | ASDMB-25.000MHZ-XY-T:AbraconASDMB | Y1 |
| 1 | JS202011SCQN | JS202011SCQN:JS202011SCQN | S1 |
| 1 | LM3880MFX-1AB_NOPB | LM3880MFX-1AB_NOPB:SOT95P280X145-6N | IC2 |
| 1 | ZMR330FTA | ZMR330FTA:ZMR330FTA | IC1 |
Questions
How big is the FPGA Pre Test PCB?
It measures 50.5 × 34.8 mm and has 2 copper layers, 1.6 mm thick.
What parts does the FPGA Pre Test use?
50 parts, built around the TPS62147RGXT, ZMR330FTA, T50201500000G and 219-4MST. 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 FPGA Pre Test KiCad files?
From the bsiyoung/FPGA_Pre_Test repository on GitHub, at the commit this page was made from: the board is kicad_proj/fpga_pre_test.kicad_pcb and its schematic kicad_proj/fpga_pre_test.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the FPGA Pre Test 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).
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