

25MHz to 1.25GHz Vector Network Analyser
- Size
- 100 × 66 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 254
- Nets
- 172
- Pads
- 842
- Tracks, vias
- 1,828, 767
- Pours
- 28
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 24 Dec 2018
- Updated
- 30 Dec 2019
Overview
VNA is an open-source printed circuit board by joshajohnson, from the joshajohnson/vna repository on GitHub, published under the GPL-3.0 licence. It is a 4-layer board of 100 × 66 mm with 254 parts on 172 nets, routed with 1,828 tracks and 767 vias.
It is built around the MAX2871ETJ+, ADC-15-4+ and LFCN-1000+, with the LFCN-1500+, LFCN-225+ and LFCN-400+ among its other parts. Its parts include 74 capacitors, 66 resistors, 18 diodes, 13 ICs and 3 connectors.
Main components
9MAX2871ETJ+
QFN-32-EP(5x5)-40℃~+85℃ 23.5MHz~6GHz 3V~3.6V Fractional、Integer-N Frequency Synthesizer, VCO General Purpose QFN-32-EP(5x5) Clock Generators, PLLs, Frequency Synthesizers ROHSMaxim Integrated (Analog Devices)RF Misc ICs And ModulesADC-15-4+
SMD-6P-40℃~+85℃ 0.6dB 15.5dB 35.16dB 5MHz~1GHz Directional coupling SMD-6P RF Directional Coupler ROHSMini-CircuitsRF Directional CouplerLFCN-1000+
SMD-4P,3.2x1.6mm-55℃~+100℃ 1.3GHz 1dB 50Ω Low Pass SMD-4P,3.2x1.6mm RF Filters ROHSMini-CircuitsRF FiltersLFCN-1500+
SMD-4P,3.2x1.6mm-55℃~+100℃ 1.825GHz 1dB 50Ω Low Pass SMD-4P,3.2x1.6mm RF Filters ROHSMini-CircuitsRF FiltersLFCN-225+
SMD-4P,3.2x1.6mm-55℃~+100℃ 1.2dB 350MHz 50Ω Low Pass SMD-4P,3.2x1.6mm RF Filters ROHSMini-CircuitsRF FiltersLFCN-400+
SMD-4P,3.2x1.6mm-55℃~+100℃ 1dB 50Ω 560MHz Low Pass SMD-4P,3.2x1.6mm RF Filters ROHSMini-CircuitsRF FiltersAD8302
SOP-8-40℃~+85℃ 0.08% 1-Channel 2.5V~6V 3W×1@4Ω、5W×1@2Ω 5mA 63dB Automatic mute/no-noise switch、Enable/shutdown function、Analog voltage gain Class D MSOP-8 Audio Amplifiers ROHSIDCHIPAudio AmplifiersTPD2S017DBV
SOT-23-6-40℃~+85℃ 12V 1pF 2 6V Bidirectional ESD IEC 61000-4-2 SOT-23-6 ESD and Surge Protection (TVS/ESD) ROHSTexas InstrumentsESD And Surge Protection (TVS/ESD)74AHC1G04SE
SOT-353-40℃~+125℃ 1 1 1.5V~3.85V 1.9V、2.9V、4.4V 1uA 2V~5.5V 500mV~1.65V 7.5ns@5V,50pF 74AHC 8mA 8mA Noise suppression function Schmitt trigger SOT-353 Inverters ROHSDiodes IncorporatedInverters
README
README.mdVNA
Low cost 25MHz to 1.25GHz Vector Network Analyser.
Design is feature complete, but not suitable for use.
Due to hardware issues the error is unacceptably large, and as such I can not recommend assembling one of these.
Parts
254| Qty | Value | Footprint | References |
|---|---|---|---|
| 23 | TP | TestPoint:TestPoint_Pad_D1.0mm | TP16, TP17, TP18, TP19, TP20, TP21, TP22, TP23, TP24, TP25, TP26, TP27, TP28, TP31, TP32, TP33 +7 |
| 17 | LED | LED_SMD:LED_0603_1608Metric | D1, D2, D3, D4, D5, D6, D7, D8, D10, D11, D12, D13, D14, D16, D17, D18 +1 |
| 15 | 470R | Resistor_SMD:R_0603_1608Metric | R1, R14, R15, R16, R29, R30, R31, R32, R52, R53, R54, R55, R59, R60, R63 |
| 12 | 10n | Capacitor_SMD:C_0402_1005Metric | C8, C12, C14, C16, C18, C20, C22, C44, C45, C47, C48, C49 |
| 10 | 0R0 | Resistor_SMD:R_0603_1608Metric | R24, R44, R45, R46, R47, R48, R51, R56, R57, R61 |
| 10 | 100n | Capacitor_SMD:C_0603_1608Metric | C1, C4, C59, C63, C64, C66, C68, C70, C72, C73 |
| 10 | 100p | Capacitor_SMD:C_0402_1005Metric | C13, C15, C17, C19, C21, C23, C27, C39, C42, C56 |
| 10 | 1u | Capacitor_SMD:C_0603_1608Metric | C28, C31, C32, C33, C34, C35, C58, C62, C69, C71 |
| 9 | 1n | Capacitor_SMD:C_0402_1005Metric | C2, C3, C5, C6, C43, C50, C51, C52, C53 |
| 6 | Bead | VNA_Footprints:BEADC1608X95N | FB1, FB2, FB3, FB4, FB5, FB6 |
| 5 | 100n | Capacitor_SMD:C_0402_1005Metric | C7, C24, C38, C41, C55 |
| 5 | GND | TestPoint:TestPoint_Pad_D1.0mm | TP6, TP7, TP8, TP9, TP10 |
| 4 | 10K | Resistor_SMD:R_0603_1608Metric | R13, R50, R65, R66 |
| 4 | GND | VNA_Footprints:S1751-46_smdTestPoint | TP12, TP13, TP14, TP15 |
| 4 | M3_Via_Pad | MountingHole:MountingHole_3.2mm_M3_Pad_Via | H1, H2, H3, H4 |
| 3 | 0 | Resistor_SMD:R_0402_1005Metric | R7, R8, R21 |
| 3 | 10p | Capacitor_SMD:C_0402_1005Metric | C46, C60, C61 |
| 3 | 16R6 | Resistor_SMD:R_0402_1005Metric | R3, R4, R5 |
| 3 | 1u | Capacitor_SMD:C_0402_1005Metric | C9, C10, C11 |
| 3 | DNP | Resistor_SMD:R_0603_1608Metric | R25, R49, R64 |
| 3 | DNP | Capacitor_SMD:C_0402_1005Metric | C54, C57, C74 |
| 3 | DNP | Resistor_SMD:R_0402_1005Metric | R33, R39, R62 |
| 3 | SW_Push | VNA_Footprints:6mmTactSwitch | SW1, SW2, SW3 |
| 2 | 10u | Capacitor_SMD:C_0805_2012Metric | C29, C30 |
| 2 | 150R | Resistor_SMD:R_0402_1005Metric | R34, R40 |
| 2 | 1K | Resistor_SMD:R_0603_1608Metric | R17, R18 |
| 2 | 1u | Capacitor_Tantalum_SMD:CP_EIA-2012-15_AVX-P | C65, C67 |
| 2 | 47n | Capacitor_SMD:C_0402_1005Metric | C37, C40 |
| 2 | 49R9 | Resistor_SMD:R_0603_1608Metric | R27, R28 |
| 2 | 52R3 | Resistor_SMD:R_0402_1005Metric | R42, R43 |
| 2 | 60R | Resistor_SMD:R_0402_1005Metric | R35, R41 |
| 2 | ADC-15-4+ | VNA_Footprints:CD542 | HY1, HY2 |
| 2 | GND | TestPoint:TestPoint_THTPad_D2.0mm_Drill1.0mm | TP30, TP39 |
| 2 | LP5912 | Package_DFN_QFN:DFN-6-1EP_2x2mm_P0.65mm_EP1x1.6mm | U4, U5 |
| 2 | PE42440 | VNA_Footprints:QFN-16-1EP_3x3mm_P0.5mm_EP2.7x2.7mm_ThermalVias | U11, U13 |
| 2 | SMA | VNA_Footprints:SMA_EDGE_MOUNT_INSET | J4, J5 |
| 2 | TPD2S017 | Package_TO_SOT_SMD:SOT-23-6 | U1, U2 |
| 1 | 0R0 | Resistor_SMD:R_0402_1005Metric | R36 |
| 1 | 100n | Inductor_SMD:L_0402_1005Metric | L1 |
| 1 | 12n | Capacitor_SMD:C_0402_1005Metric | C25 |
| 1 | 18k | Resistor_SMD:R_0402_1005Metric | R19 |
| 1 | 1K5 | Resistor_SMD:R_0603_1608Metric | R58 |
| 1 | 1R8 | Resistor_SMD:R_0402_1005Metric | R26 |
| 1 | 1V8 | TestPoint:TestPoint_Pad_D1.0mm | TP4 |
| 1 | 1k | Resistor_SMD:R_0402_1005Metric | R23 |
| 1 | 240 | Resistor_SMD:R_0402_1005Metric | R11 |
| 1 | 278R | Resistor_SMD:R_0402_1005Metric | R38 |
| 1 | 31.1 | Resistor_SMD:R_0402_1005Metric | R10 |
| 1 | 37R | Resistor_SMD:R_0402_1005Metric | R37 |
| 1 | 3V3 | TestPoint:TestPoint_Pad_D1.0mm | TP5 |
| 1 | 3V3A | TestPoint:TestPoint_Pad_D1.0mm | TP3 |
| 1 | 49.9 | Resistor_SMD:R_0402_1005Metric | R12 |
| 1 | 49R9 | Resistor_SMD:R_0402_1005Metric | R2 |
| 1 | 5.1k | Resistor_SMD:R_0402_1005Metric | R6 |
| 1 | 500mA Polyfuse | VNA_Footprints:Fuse_0805_2012Metric | F1 |
| 1 | 52.3 | Resistor_SMD:R_0402_1005Metric | R20 |
| 1 | 5V0 | TestPoint:TestPoint_Pad_D1.0mm | TP2 |
| 1 | 5V_VIN | VNA_Footprints:TestPoint_Loop_D1.80mm_Drill1.0mm_Beaded_RED | TP43 |
| 1 | 74AHC1G04 | Package_TO_SOT_SMD:SOT-353_SC-70-5 | U10 |
| 1 | 8.2p | Capacitor_SMD:C_0402_1005Metric | C36 |
| 1 | 820p | Capacitor_SMD:C_0402_1005Metric | C26 |
| 1 | 8MHz | VNA_Footprints:Crystal_SMD_5032-2Pin_5.0x3.2mm | Y1 |
| 1 | 90.9 | Resistor_SMD:R_0402_1005Metric | R9 |
| 1 | AD8302 | Package_SO:TSSOP-14_4.4x5mm_P0.65mm | U15 |
| 1 | AD8319 | Package_DFN_QFN:DFN-8-1EP_2x3mm_P0.5mm_EP0.61x2.2mm | U7 |
| 1 | ASTXR-12-19.200MHz | VNA_Footprints:ASTXR-12 | X1 |
| 1 | AT25SF081-SSHD-X | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U17 |
| 1 | CP | TestPoint:TestPoint_Pad_D1.0mm | TP11 |
| 1 | Conn_ARM_SWD | VNA_Footprints:SAMTEC_FTSH-105-01-L-DV-R-TR | J3 |
| 1 | F2923 | VNA_Footprints:QFN-20-1EP_4x4mm_P0.5mm_EP2x2mm_ThermalVias | U14 |
| 1 | LED_RGBA | VNA_Footprints:ARGB_PLCC4_1210_LED | D15 |
| 1 | LFCN-1000+ | VNA_Footprints:FV1206 | FL3 |
| 1 | LFCN-1500+ | VNA_Footprints:FV1206 | FL4 |
| 1 | LFCN-225+ | VNA_Footprints:FV1206 | FL1 |
| 1 | LFCN-400+ | VNA_Footprints:FV1206 | FL2 |
| 1 | LOGO | VNA_Footprints:OSHW_Logo_3.6x3.6_F.Mask | G*** |
| 1 | Light Pipe | VNA_Footprints:SLP3-150-150-F | TP40 |
| 1 | MAX2871 | VNA_Footprints:QFN-32-1EP_5x5mm_Pitch0.5mm_Thermal_Vias | U3 |
| 1 | MIC5366-1.8 | Package_TO_SOT_SMD:SOT-353_SC-70-5 | U6 |
| 1 | OPT | Resistor_SMD:R_0402_1005Metric | R22 |
The 239 most common of 254 parts.
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Questions
How big is the VNA PCB?
It measures 100 × 66 mm and has 4 copper layers, 1.6 mm thick.
What parts does the VNA use?
254 parts, built around the MAX2871ETJ+, ADC-15-4+, LFCN-1000+ and LFCN-1500+. 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 VNA KiCad files?
From the joshajohnson/vna repository on GitHub, at the commit this page was made from: the board is Hardware/VNAv0/VNA.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the VNA design in my own project?
Its repository publishes it under the GPL-3.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).