HardLabs

Dac

naguirre·mds-hardware·dac/dac.kicad_pcb

Dac PCB layout, top view — open source Raspberry Pi board by naguirre

About the Dac PCB

Dac is an open source Raspberry Pi PCB design by naguirre, published on GitHub. It is a 2-layer board measuring 30.1 × 65.1 mm, with 23 components from 21 distinct parts.

Its main chip is the RASPBERRY_PI_2_3, from the Raspberry Pi family. Other key parts include the F1C100S, ES9023 and LP5912-3.3DRV. By type, the board carries 10 capacitors, 6 connectors, 3 ICs, 3 resistors and 1 diode.

From the project

MDS hardware based on f1c200s and esp32-c3

KiCad sources and fabrication outputs for a small network audio player board built around an Allwinner F1C200s SoC, an ESP32-C3 for Wi-Fi, NAND flash storage, an EA3036 power management IC, and an audio DAC daughter board.

The repository contains two KiCad projects: - network_player/ — the main board - dac/ — the audio DAC daughter board

References on GitHub: v1 is at commit c1560a5, v1.1 is the v1.1 tag, v2 lives on the networkplayerv2 branch. The v1jlcpcb` tag points to the JLCPCB return files for v1.

Dac, from the project README
From the project README

Main components on the Dac

F1C100SES9023LP5912-3.3DRV

Dac bill of materials (BOM)

23 components, 21 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
F1C100S
TCXO 49.152 MHz
U1
1
ES9023
U2
1
LP5912-3.3DRV
U5
1
RASPBERRY_PI_2_3
Raspberry_Pi_2_3
J1
1
LEFT
J2
1
RIGHT
J3
1
3v3
J6
1
GND
J7
1
GNDA
J8
1
1N5822/SS34/SMA
D1
1
10UF
2.2uF
C1
1
10UF
2.2uF/50V
C2
2
10UF
10uF/25V
C3, C8
2
10UF
1uF
C4, C10
1
100NF
1uF
C5
1
10UF
4.7nF
C6
1
100NF
4.7nF
C7
1
100NF
10uF/25V
C9
1
68K
100k
R1
1
15K
220k
R2
Show 1 more
QtyPartRefs
1
47K
100k
R3

Dac design files

The KiCad project lives in the naguirre/mds-hardware repository on GitHub; these links point at the commit this page was built from.

Dac: common questions

What microcontroller does the Dac use?

The Dac is built around the RASPBERRY_PI_2_3, from the Raspberry Pi family.

How big is the Dac PCB?

The Dac measures 30.1 × 65.1 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Dac?

23 components, from 21 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 Dac design files?

From the naguirre/mds-hardware 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 Dac design in my own project?

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

Can I test firmware for the Dac without the hardware?

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

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