HardLabs

HiFiDAC

BlockWorker·ModularAudio·HiFiDAC/HiFiDAC.kicad_pcb

HiFiDAC PCB layout, top view — open source STM32 board by BlockWorker

About the HiFiDAC PCB

HiFiDAC is an open source STM32 PCB design by BlockWorker, published on GitHub. It is a 4-layer board measuring 40 × 40 mm, with 102 components from 50 distinct parts.

Its main chip is the STM32C031K6Ux, from the STM32 family. Other key parts include the KC2520K24.5760, ES9039Q2M, TPS7A87, TLV75101 and OPA1612. By type, the board carries 48 capacitors, 30 resistors, 9 test points, 7 ICs, 7 connectors and 1 inductor.

It belongs with the audio designs in this gallery.

From the project

Compact, modular, versatile, hi-fi audio system concept.

Main components on the HiFiDAC

KC2520K24.5760ES9039Q2MSTM32C031K6UxTPS7A87TLV75101OPA1612

HiFiDAC bill of materials (BOM)

102 components, 50 distinct parts.

QtyPartRefs
1
KC2520K24.5760
U1
1
ES9039Q2M
U2
1
STM32C031K6Ux
U3
1
TPS7A87
U4
1
TLV75101
U5
2
OPA1612
U6, U7
1
SE
J1
1
I2S
J2
1
DIFF_1
J3
1
DIFF_2
J4
1
SWD
J5
1
I2C
J6
1
PWR
J7
1
DEBUG_UART_TX
TP1
1
I2C_~{INT}
TP2
1
I2C_SDA
TP3
1
DEBUG_UART_RX
TP4
1
I2C_SCL
TP5
1
SCLK
TP6
1
MOSI
TP7
Show 30 more
QtyPartRefs
1
SS
TP8
1
MISO
TP9
1
MPZ1608B471ATA00
FB1
5
10µF 25V
C1, C26, C27, C30, C31
7
1µF 25V
C2, C3, C4, C5, C6, C19, C24
7
0.1µF
C7, C10, C11, C15, C20, C25, C29
1
10nF
C8
1
4.7µF
C9
2
100µF 10V
C12, C28
2
100µF 25V
C13, C14
4
10µF 50Vs
C16, C17, C21, C22
2
220µF 6.3V
C18, C23
1
100µF 10V 450mΩ
C32
4
1.5nF C0G
C33, C38, C44, C48
4
10nF C0G
C34, C36, C45, C47
2
33pF C0G
C35, C46
4
0.1µF C0G
C37, C40, C41, C43
2
10µF 50V
C39, C42
1
2.2Ω
R1
1
0Ω
R2
1
10Ω
R3
2
27Ω
R4, R5
3
10kΩ
R6, R12, R14
2
3.12kΩLN
R7, R9
2
1kΩLN
R8, R10
2
49.9kΩ
R11, R13
4
22kΩRS
R15, R22, R23, R30
4
1.5kΩRS
R16, R21, R24, R29
4
100ΩRS
R17, R20, R25, R28
4
4.7kΩRS
R18, R19, R26, R27

HiFiDAC design files

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

HiFiDAC: common questions

What microcontroller does the HiFiDAC use?

The HiFiDAC is built around the STM32C031K6Ux, from the STM32 family.

How big is the HiFiDAC PCB?

The HiFiDAC measures 40 × 40 mm, has 4 copper layers and is 1.6062 mm thick.

How many components are on the HiFiDAC?

102 components, from 50 distinct parts. The full bill of materials is listed on this page.

Where can I download the HiFiDAC design files?

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

Can I use the HiFiDAC design in my own project?

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

Can I test firmware for the HiFiDAC 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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