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Digirig icom

1vers1on·digirig_icom

Digirig icom PCB layout, top view — open source RP2040/RP2350 board by 1vers1on

About the Digirig icom PCB

Digirig icom is an open source RP2040/RP2350 PCB design by 1vers1on, published on GitHub. It is a 4-layer board measuring 48.5 × 56 mm, with 60 components from 30 distinct parts.

Its main chip is the RP2350A-CT, from the RP2040/RP2350 family. Other key parts include the TLV320AIC3204IRHBR, CD4053B, MCP1703Ax-330xxDB, LM393DR and TXS0102DQE. By type, the board carries 20 capacitors, 19 resistors, 7 ICs, 4 transistors, 4 connectors and 3 diodes.

From the project

A custom hardware controller for the ICOM IC-2730 radio, featuring digital audio processing and USB connectivity.

A custom hardware controller for the ICOM IC-2730 radio, featuring digital audio processing and USB connectivity.

This project provides a digital interface for the ICOM IC-2730 radio using a Raspberry Pi RP2350 microcontroller and TLV320AIC3204 audio codec. It handles both transmit and receive audio digitally while managing the radio's unique logic level requirements.

Main components on the Digirig icom

RP2350A-CTTLV320AIC3204IRHBRCD4053BMCP1703Ax-330xxDBLM393DRTXS0102DQE

Digirig icom bill of materials (BOM)

60 components, 30 distinct parts.

QtyPartRefs
1
RP2350A-CT
RP2354
IC1
1
TLV320AIC3204IRHBR
U1
2
CD4053B
U2, U3
1
MCP1703Ax-330xxDB
U4
1
LM393DR
Texas Instruments
U5
1
TXS0102DQE
U6
1
AO3401A
Alpha & Omega Semiconductor Inc.
Q1
1
2N7002
ON Semiconductor
Q2
2
MMBT3904
Q3, Q4
1
ABM8-272-T3
Y1
1
SJ-3523-SMT-TR
CUI Inc.
CON2
2
RJ45
J1, J2
1
USB_B
J3
1
SW_SPST
SW1
2
SS14
D1, D2
1
LED
D3
1
3.3uH
L1
9
4.7uF
C1, C2, C3, C12, C13, C14, C15, C16 +1
7
0.1uF
C4, C5, C6, C9, C11, C20, C21
2
10pF
C8, C10
Show 10 more
QtyPartRefs
2
1uF
C18, C19
1
33
R1
6
10k
R2, R5, R7, R9, R13, R14
5
1k
R3, R4, R8, R10, R18
1
470
R6
2
22
R11, R12
1
220
R15
1
47k
R16
1
12k
R17
1
100k
R19

Digirig icom design files

The KiCad project lives in the 1vers1on/digirig_icom repository on GitHub; these links point at the commit this page was built from.

Digirig icom: common questions

What microcontroller does the Digirig icom use?

The Digirig icom is built around the RP2350A-CT, from the RP2040/RP2350 family.

How big is the Digirig icom PCB?

The Digirig icom measures 48.5 × 56 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the Digirig icom?

60 components, from 30 distinct parts. The full bill of materials is listed on this page.

Where can I download the Digirig icom design files?

From the 1vers1on/digirig_icom repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Digirig icom design in my own project?

The repository has no license, so all rights stay with 1vers1on. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Digirig icom 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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