2 layers62 × 26.2 mm LucidDAC, the printed circuit board in 3D

LucidDAC

A simple USB-C to 3.5mm DAC

Size: 62 × 26.2 mm
Copper layers: 2
Thickness: 1.6 mm
Parts: 48
Nets: 44
Pads: 157
Tracks, vias: 273, 18
Pours: 176
Routed: Yes
KiCad: KiCad 9.0 (file 20241229)
Created: 28 Dec 2025
Updated: 28 Dec 2025

Overview

LucidDAC is an open-source printed circuit board by sanoojes, from the sanoojes/LucidDAC repository on GitHub. It is a 2-layer board of 62 × 26.2 mm with 48 parts on 44 nets, routed with 273 tracks and 18 vias.

It is built around the PCM2912APJTR, USBLC6-2SC6 and SJ-435107. Its parts include 17 capacitors, 16 resistors, 3 connectors, 2 ICs and 2 diodes. It belongs with the audio and music boards of this library.

Main components

README

README.md

LucidDAC

A USB-C to 3.5mm DAC cuzz new phones doesn't come with a 3.5mm Jack(f Apple for removing so that the industry follows)

PCB

PCB Back PCB Front PCB KiCad PCB Schematics

Bill of Materials

Parts

Qty	Value	Footprint	References
6	1uF	Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder	C6, C7, C10, C11, C18, C19
4	3.3k	Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R3, R4, R5, R6
2	0.1uF	Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder	C1, C13
2	100pF	Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder	C16, C17
2	16R	Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R7, R8
2	1K	Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R10, R12
2	220uF	EEEFK1A221XP:CAP_EEEFK1A221XP	CE1, CE2
2	22R	Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R14, R15
2	22nF	Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder	C4, C5
2	22pF	Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder	C12, C14
2	3.3uF	Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder	C8, C15
2	5.1k	Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R1, R2
2	LED	PCM_SparkFun-LED:LED_0805_2012Metric	D1, D2
1	1.5k	Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R16
1	10k	Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R9
1	1M	Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R13
1	1k	Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R11
1	1uH	Inductor_SMD:L_0805_2012Metric_Pad1.05x1.20mm_HandSolder	L1
1	2.2uF	EEEHB1H2R2R:CAP_EEEHB1H2R2R	C9
1	6MHz	PCM_Crystal_AKL:Crystal_HC49-4H_Vertical	Y1
1	J1	Connector_PinHeader_2.54mm:PinHeader_2x03_P2.54mm_Vertical	J1
1	LOGO	LOGO	ref
1	MIC_GAIN	Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical	MIC_GAIN
1	MIC_MUTE	Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical	MIC_MUTE
1	PCM2912APJTR	PCM2912APJTR:QFP80P900X900X120-32N	U2
1	POWER	Jumper:SolderJumper-3_P1.3mm_Open_RoundedPad1.0x1.5mm	JP1
1	SJ-435107	SJ-435107:CUI_SJ-435107	J3
1	USBLC6-2SC6	Package_TO_SOT_SMD:SOT-23-6	U1
1	USB_C_Receptacle_USB2.0_16P	PCM_marbastlib-various:USB_C_Receptacle_HRO_TYPE-C-31-M-23	J2

Questions

How big is the LucidDAC PCB?

It measures 62 × 26.2 mm and has 2 copper layers, 1.6 mm thick.

What parts does the LucidDAC use?

48 parts, built around the PCM2912APJTR, USBLC6-2SC6 and SJ-435107. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.

Where can I download the LucidDAC KiCad files?

From the sanoojes/LucidDAC repository on GitHub, at the commit this page was made from: the board is LucidDAC.kicad_pcb and its schematic LucidDAC.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the LucidDAC design in my own project?

Its repository states no licence, so its author keeps all rights: ask sanoojes before reusing the design.

Category and platform

Audio and music

Project files

Show this board on your page

A live frame, for any web page

<iframe src="https://pcbkit.io/embed/boards/sanoojes-luciddac" title="LucidDAC in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe>

A picture

<img src="https://pcbkit.io/embed/boards/sanoojes-luciddac.jpg" alt="LucidDAC" width="1200" height="900">

A picture that opens the board, for a README

[![LucidDAC](https://pcbkit.io/embed/boards/sanoojes-luciddac.jpg?size=s)](https://pcbkit.io/boards/sanoojes-luciddac)

Source

Repository: sanoojes/LucidDAC
Board file: LucidDAC.kicad_pcb
Commit: f114b61
Licence: Not stated

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