HardLabs

VNA

joshajohnson·vna·Hardware/VNAv0/VNA.kicad_pcb

VNA PCB layout, top view — open source STM32 board by joshajohnson
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About the VNA PCB

VNA is an open source STM32 PCB design by joshajohnson, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 100 × 66 mm, with 207 components from 78 distinct parts.

Its main chip is the STM32F373RCTx, from the STM32 family. Other key parts include the TPD2S017, MAX2871, LP5912, MIC5366-1.8 and AD8319. By type, the board carries 74 capacitors, 66 resistors, 18 diodes, 17 ICs, 7 inductors and 6 connectors.

From the project

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.

Main components on the VNA

TPD2S017MAX2871LP5912MIC5366-1.8AD8319SKY12347-362LFTRF37A7574AHC1G04PE42440SN74LVC1G139F2923AD8302STM32F373RCTxAT25SF081-SSHD-X

VNA bill of materials (BOM)

207 components, 78 distinct parts — part numbers from the project's BOM.

QtyPartRefs
2
TPD2S017
U1, U2
1
MAX2871
U3
2
LP5912
U4, U5
1
MIC5366-1.8
U6
1
AD8319
U7
1
SKY12347-362LF
U8
1
TRF37A75
U9
1
74AHC1G04
U10
2
PE42440
U11, U13
1
SN74LVC1G139
U12
1
F2923
U14
1
AD8302
U15
1
STM32F373RCTx
U16
1
AT25SF081-SSHD-X
U17
1
RE1C002UN
Q1
1
ASTXR-12-19.200MHz
X1
1
8MHz
Y1
1
USB_B_Micro
J1
1
USB_A
J2
1
Conn_ARM_SWD
J3
Show 58 more
QtyPartRefs
2
SMA
J4, J5
1
UART
J6
1
500mA Polyfuse
F1
1
LFCN-225+
FL1
1
LFCN-400+
FL2
1
LFCN-1000+
FL3
1
LFCN-1500+
FL4
2
ADC-15-4+
HY1, HY2
3
SW_Push
SW1, SW2, SW3
4
GND
TP12, TP13, TP14, TP15
1
Light Pipe
TP40
1
5V_VIN
TP43
17
LED
D1, D2, D3, D4, D5, D6, D7, D8 +9
1
LED_RGBA
D15
6
Bead
FB1, FB2, FB3, FB4, FB5, FB6
1
100n
L1
10
100n
C1, C4, C59, C63, C64, C66, C68, C70 +2
9
1n
C2, C3, C5, C6, C43, C50, C51, C52 +1
5
100n
C7, C24, C38, C41, C55
12
10n
C8, C12, C14, C16, C18, C20, C22, C44 +4
3
1u
C9, C10, C11
10
100p
C13, C15, C17, C19, C21, C23, C27, C39 +2
1
12n
C25
1
820p
C26
10
1u
C28, C31, C32, C33, C34, C35, C58, C62 +2
2
10u
C29, C30
1
8.2p
C36
2
47n
C37, C40
3
10p
C46, C60, C61
3
DNP
C54, C57, C74
2
1u
C65, C67
15
470R
R1, R14, R15, R16, R29, R30, R31, R32 +7
1
49R9
R2
3
16R6
R3, R4, R5
1
5.1k
R6
3
0
R7, R8, R21
1
90.9
R9
1
31.1
R10
1
240
R11
1
49.9
R12
4
10K
R13, R50, R65, R66
2
1K
R17, R18
1
18k
R19
1
52.3
R20
1
OPT
R22
1
1k
R23
10
0R0
R24, R44, R45, R46, R47, R48, R51, R56 +2
3
DNP
R25, R49, R64
1
1R8
R26
2
49R9
R27, R28
3
DNP
R33, R39, R62
2
150R
R34, R40
2
60R
R35, R41
1
0R0
R36
1
37R
R37
1
278R
R38
2
52R3
R42, R43
1
1K5
R58

VNA design files

The KiCad project lives in the joshajohnson/vna repository on GitHub; these links point at the commit this page was built from.

VNA: common questions

What microcontroller does the VNA use?

The VNA is built around the STM32F373RCTx, from the STM32 family.

How big is the VNA PCB?

The VNA measures 100 × 66 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the VNA?

207 components, from 78 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the VNA design files?

From the joshajohnson/vna repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the VNA design in my own project?

Yes, under the terms of its GPL-3.0 license, which joshajohnson chose for the repository.

Can I test firmware for the VNA without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug STM32 firmware against it before you order a PCB.

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