2 layers100 × 100 mm
Zxuno1010
UzixLS/zxuno1010-board
10x10cm PCB variant of ZX-UNO project for G738/G706 enclosure
231 parts23MIT
2 layers34 × 23.4 mm
DWAVE is a small General MIDI module for the wavetable connector of your old sound card, based on the SAM2695 chip
- Size
- 34 × 23.4 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 28
- Nets
- 19
- Pads
- 159
- Tracks, vias
- 314, 34
- Pours
- 5
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 10 Aug 2021
- Updated
- 6 Jul 2026
Overview
DWAVE is an open-source printed circuit board by hkzlab, from the hkzlab/DWAVE_MIDI_Wavetable repository on GitHub. It is a 2-layer board of 34 × 23.4 mm with 28 parts on 19 nets, routed with 314 tracks and 34 vias.
It is built around the SAM2695 and LP2985-33DBV. Its parts include 18 capacitors, 3 resistors, 3 ICs, 1 connector and 1 inductor. It belongs with the audio and music and retro computing and games boards of this library.
Main components
2
SAM2695
QFN-48-EP_6x6-25℃~+70℃ 2.7V~3.6V Processor、Encoder/decoder QFN-48-EP(6x6) Audio Interface ICs ROHSDREAMAudio Interface ICs
LP2985-33DBV
SOT-23-5-40℃~+125℃@(Tj) 1 150mA 16V 3.3V 30uVrms 45dB@(1kHz) 575mV@(150mA) 850uA Fixed Over Current Protection、Short Circuit Protection、Thermal shutdown、Enable control、Noise bypass terminal Positive SOT-23-5 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSTexas InstrumentsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
README
README.mdDWAVE: Dream Wavetable module
Introduction
The DWAVE is a small General MIDI Synth based on the SAM2695 chip. It can be plugged on the wavetable header of your sound card.
Disclaimer
I take NO responsibility for what happens if you decide to build and use this card. Your computer might crash, catch fire or be destroyed in other nasty ways. You're encourauged to take what you deem fit from this, and use it in your projects!
Bill of Materials
| Component | Qty | Type / Value | Mouser code |
|---|---|---|---|
| C1 | 2 | 1uF / 0805 | 710-885012207022 |
| C2 | 1 | 10nF / 0805 | 710-885382207006 |
| C3,C7 | 2 | 4.7uF / 0805 | 187-CL21A475KPFNNNG |
| C4,C5 | 2 | 22pF / 0805 | 710-885012007053 |
| C6,C8,C9,C10,C15,C17,C21 | 7 | 100nF / 0805 | 710-885012207072 |
| C14,C16,C18 | 3 | 10uF / 0805 | 187-CL21A106KPFNNNG |
| C19,C20 | 2 | 100uF / 1206 | 81-GRM31CR61A107ME5L |
| L1 | 1 (or 2) | Inductor 742792093 | 710-742792093 |
| R1 | 1 (or 0) | 0 ohm or same as L1 | 71-CRCW08050000Z0EAC |
| R3,R4 | 2 | 47k / 0805 | 652-CR0805FX-4702ELF |
| F1 | 1 | SMD Fuse | 652-SF-1206HI050M-2 |
| Y1 | 1 | 12Mhz / HC49 | 449-LFXTAL035293REEL |
| U1 | 1 | LP2085-3.3 | 926-LP2985IM5X33NOPB |
| U2 | 1 | SAM2695 | |
| U3 | 1 | 74HC4050 | 771-74HC4050PW-Q100J |
| J1 | 1 | 2x13 2.54mm socket | 200-SSQ11301GD, but any snappable 2.54mm socket is fine |
Credits
Thanks to Sergey Kiselev for his symbol/footprint library!
Parts
28| Qty | Value | Footprint | References |
|---|---|---|---|
| 7 | 100nF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C6, C8, C9, C10, C15, C17, C21 |
| 3 | 10uF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C14, C16, C18 |
| 2 | 100uF | Capacitor_SMD:C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C19, C20 |
| 2 | 22pF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C4, C5 |
| 2 | 4.7uF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C3, C7 |
| 2 | 47k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R3, R4 |
| 1 | 0 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1 |
| 1 | 0.5A | Fuse:Fuse_1206_3216Metric_Pad1.42x1.75mm_HandSolder | F1 |
| 1 | 10nF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C2 |
| 1 | 12Mhz | Crystal:Crystal_SMD_HC49-SD | Y1 |
| 1 | 1uF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C1 |
| 1 | 4050 | Package_SO:TSSOP-16_4.4x5mm_P0.65mm | U3 |
| 1 | 742792093 | Inductor_SMD:L_0805_2012Metric_Pad1.15x1.40mm_HandSolder | L1 |
| 1 | LP2985-3.3 | Package_TO_SOT_SMD:SOT-23-5 | U1 |
| 1 | SAM2695 | MIDIPLUG:QFN-48-1EP_6x6mm_P0.4mm_EP4.66x4.66mm_BackHoles | U2 |
| 1 | Wavetable Connector | Connector_PinSocket_2.54mm:PinSocket_2x13_P2.54mm_Vertical | J1 |
Questions
How big is the DWAVE PCB?
It measures 34 × 23.4 mm and has 2 copper layers, 1.6 mm thick.
What parts does the DWAVE use?
28 parts, built around the SAM2695 and LP2985-33DBV. 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 DWAVE KiCad files?
From the hkzlab/DWAVE_MIDI_Wavetable repository on GitHub, at the commit this page was made from: the board is DWAVE.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the DWAVE design in my own project?
Its repository states no licence, so its author keeps all rights: ask hkzlab before reusing the design.
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