4 layers85 × 70 mm Wave gen, the printed circuit board in 3D

Wave gen

Engineering thesis, Applied CS 2026

Size: 85 × 70 mm
Copper layers: 4
Thickness: 1.61 mm
Parts: 141
Nets: 133
Pads: 480
Tracks, vias: 1,607, 358
Pours: 1
Routed: Yes
KiCad: KiCad 9.0 (file 20241229)
Created: 21 Mar 2025
Updated: 18 Jun 2026

Overview

Wave gen is an open-source printed circuit board by m-chwast, from the m-chwast/tiny-waveform-generator repository on GitHub. It is a 4-layer board of 85 × 70 mm with 141 parts on 133 nets, routed with 1,607 tracks and 358 vias.

It is built around the DAC904E, TSV792IDT and LD1117-3.3(MS), with the TL1431ACZ, USBLC6-2P6 and BC847 among its other parts. Its parts include 55 resistors, 44 capacitors, 11 diodes, 9 ICs and 8 connectors. It belongs with the STM32 boards of this library.

Main components

README

README.md

Arbitrary Waveform Generator

Based on a single uC + DAC architecture. Custom SW + HW. Current specs:

50 MSPS
32kS buffer
bw > 1MHz
0-3 V
TFT LCD

Parts

141

Qty	Value	Footprint	References
23	100n	Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder	C1, C2, C3, C11, C13, C16, C19, C20, C21, C22, C23, C24, C26, C28, C30, C31 +7
12	1k	Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R3, R31, R32, R33, R34, R35, R39, R43, R44, R47, R48, R49
11	4k7	Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R2, R10, R11, R12, R13, R28, R29, R30, R36, R42, R51
7	0R	Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R19, R20, R21, R22, R41, R54, R55
6	LED	LED_SMD:LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder	D4, D5, D6, D7, D8, D9
5	10u	Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder	C17, C18, C29, C43, C44
5	220R	Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R4, R5, R45, R46, R50
4	50R 0.1%	Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R14, R15, R16, R17
3	100u	Capacitor_THT:CP_Radial_D5.0mm_P2.00mm	C40, C41, C42
3	10n	Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder	C35, C36, C39
3	2k 0.1%	Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R18, R52, R53
3	2k3 0.1%	Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R23, R26, R27
3	4u7	Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder	C10, C25, C27
3	LED	LED_THT:LED_D5.0mm	D1, D2, D3
3	tactile	tact-switch:tact-switch-6x6	SW2, SW3, SW4
2	100p	Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder	C37, C38
2	10k	Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R8, R9
2	1k 0.1%	Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R24, R25
2	20p	Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder	C14, C15
2	2k2	Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R37, R38
2	2u2	Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder	C8, C9
2	500mA	Fuse:Fuse_1206_3216Metric_Pad1.42x1.75mm_HandSolder	F1, F2
2	5k1	Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R6, R7
2	D_Schottky	Diode_SMD:D_SOD-323_HandSoldering	D10, D11
2	LD1117_33	Package_TO_SOT_SMD:SOT-223-3_TabPin2	U4, U5
1	1u	Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder	C12
1	470R	Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R40
1	47R	Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R1
1	8M	Crystal:Crystal_SMD_HC49-SD_HandSoldering	Y1
1	BC847	Package_TO_SOT_SMD:SOT-23	Q1
1	DAC904E	DAC904E:PW28	U2
1	DISP	Connector_PinHeader_2.54mm:PinHeader_1x14_P2.54mm_Vertical	J4
1	DISP_TOUCH	Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical	J3
1	Encoder	Rotary_Encoder:RotaryEncoder_Alps_EC11E-Switch_Vertical_H20mm	SW5
1	LM4040DBZ-2.5	Package_TO_SOT_SMD:SOT-23	U8
1	M24C64	Package_SO:SOIC-8_3.9x4.9mm_P1.27mm	U6
1	OUT	Connector_Coaxial:BNC_Amphenol_B6252HB-NPP3G-50_Horizontal	J5
1	OUT	Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical	J8
1	PWR_IN	Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical	J7
1	STM32H562VGTx	Package_QFP:LQFP-100_14x14mm_P0.5mm	U1
1	SWD	Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical	J1
1	TL1431A	Package_TO_SOT_SMD:SOT-23	U9
1	TSV792	Package_SO:SOIC-8_3.9x4.9mm_P1.27mm	U7
1	UART	Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical	J6
1	USBLC6-2P6	Package_TO_SOT_SMD:SOT-666	U3
1	USB_C_Receptacle_USB2.0_16P	Connector_USB:USB_C_Receptacle_G-Switch_GT-USB-7010ASV	J2
1	Y14x-1C-xxDS	Relay_THT:Relay_SPDT_HsinDa_Y14	K1
1	tactile	Button_Switch_SMD:SW_DIP_SPSTx01_Slide_6.7x4.1mm_W6.73mm_P2.54mm_LowProfile_JPin	SW1

The 137 most common of 141 parts.

Questions

How big is the Wave gen PCB?

It measures 85 × 70 mm and has 4 copper layers, 1.61 mm thick.

What parts does the Wave gen use?

141 parts, built around the DAC904E, TSV792IDT, LD1117-3.3(MS) and TL1431ACZ. 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 Wave gen KiCad files?

From the m-chwast/tiny-waveform-generator repository on GitHub, at the commit this page was made from: the board is Hardware/wave-gen/wave-gen.kicad_pcb and its schematic Hardware/wave-gen/wave-gen.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the Wave gen design in my own project?

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

Category and platform

STM32

Project files

Show this board on your page

A live frame, for any web page

<iframe src="https://pcbkit.io/embed/boards/m-chwast-tiny-waveform-generator" title="Wave gen 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/m-chwast-tiny-waveform-generator.jpg" alt="Wave gen" width="1200" height="900">

A picture that opens the board, for a README

[![Wave gen](https://pcbkit.io/embed/boards/m-chwast-tiny-waveform-generator.jpg?size=s)](https://pcbkit.io/boards/m-chwast-tiny-waveform-generator)

Source

Repository: m-chwast/tiny-waveform-generator
Board file: Hardware/wave-gen/wave-gen.kicad_pcb
Commit: 6808138
Licence: Not stated

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