HardLabs

VikramSat-RF-subsystem

Astralis1409·VikramSat-RF-subsystem·hardware_rf/hardware_rf.kicad_pcb

VikramSat-RF-subsystem PCB layout, top view — open source RP2040/RP2350 board by Astralis1409
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About the VikramSat-RF-subsystem PCB

VikramSat-RF-subsystem is an open source RP2040/RP2350 PCB design by Astralis1409, published on GitHub under the MIT license. It is a 4-layer board measuring 72 × 72 mm, with 89 components from 38 distinct parts.

Its main chip is the RP2350A-QFN60, from the RP2040/RP2350 family. Other key parts include the CC1125RHBR, BALF-SPI2-02D3, 4259-63, W25Q128JVS and GSQ5110. By type, the board carries 49 capacitors, 14 resistors, 9 ICs, 4 connectors, 4 diodes and 2 crystals.

It belongs with the rf & radio designs in this gallery.

From the project

WIP - VikramSat's Official Radio Communications Subsystem with hardware, software and more.

The RF transmitter on this board has an output Power of 4 Watts and it is not recommend to use this without a ham radio license. although you can receive data just fine.

It uses the CC1125 RF Transceiver from Texas Instruments as it's Transceiver and GSQ5111 Power Amplifier and it operates in the 70cm band. the RP2350A acts as a control IC for the CC1125 and this simplifies the process for the OnBoard Computer(the OBC of the cubesat)

VikramSat-RF-subsystem, from the project README
From the project README

Main components on the VikramSat-RF-subsystem

CC1125RHBRBALF-SPI2-02D34259-63RP2350A-QFN60W25Q128JVSGSQ5110SK5129AMS1117S-3.3

VikramSat-RF-subsystem bill of materials (BOM)

89 components, 38 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
CC1125RHBR
IC1
1
BALF-SPI2-02D3
IC2
2
4259-63
IC3, IC4
1
RP2350A-QFN60
U1
1
W25Q128JVS
U2
1
GSQ5110
U3
1
SK5129
U4
1
AMS1117S-3.3
AMS1117s-3.3
U5
2
CRYSTAL_GND24
Crystal_GND24
Y1, Y2
1
Conn_Coaxial
J1
1
CONN_01X03_SOCKET
Conn_01x03_Socket
J2
1
CONN_02X20_TOP_BOTTOM
Conn_02x20_Top_Bottom
J3
1
USB_C_RECEPTACLE_USB2.0_16P
USB_C_Receptacle_USB2.0_16P
J4
5
~
DP1, DP2, DP3, DP4, DP5
1
SW_Push
SW1
1
LED
D1
2
D
D2, D3
1
ESDS314DBVR
D4
1
3.3U
3.3u
L1
4
15P
15p
C1, C2, C32, C33
Show 18 more
QtyPartRefs
11
47N
47n
C3, C4, C5, C6, C7, C9, C11, C12 +3
1
1N8
1n8
C8
1
10N
10n
C10
1
220N
220n
C14
9
4.7U
4.7u
C17, C18, C19, C21, C34, C35, C36, C39 +1
11
100N
100n
C20, C22, C23, C24, C25, C26, C27, C28 +3
2
100NF
100nF
C37, C38
2
10U
10u
C41, C42
1
1200P
1200p
C43
1
5p
C44
5
220P
220p
C45, C46, C47, C48, C49
1
0
R1
1
56K
56k
R2
1
33
R3
2
27
R4, R5
3
1k
R6, R7, R12
4
10K
10k
R8, R9, R10, R11
2
5.1K
5.1k
R13, R14

VikramSat-RF-subsystem design files

The KiCad project lives in the Astralis1409/VikramSat-RF-subsystem repository on GitHub; these links point at the commit this page was built from.

VikramSat-RF-subsystem: common questions

What microcontroller does the VikramSat-RF-subsystem use?

The VikramSat-RF-subsystem is built around the RP2350A-QFN60, from the RP2040/RP2350 family.

How big is the VikramSat-RF-subsystem PCB?

The VikramSat-RF-subsystem measures 72 × 72 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the VikramSat-RF-subsystem?

89 components, from 38 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 VikramSat-RF-subsystem design files?

From the Astralis1409/VikramSat-RF-subsystem repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the VikramSat-RF-subsystem design in my own project?

Yes, under the terms of its MIT license, which Astralis1409 chose for the repository.

Can I test firmware for the VikramSat-RF-subsystem without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug RP2040/RP2350 firmware against it before you order a PCB.

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