PitchDAC
About the PitchDAC PCB
PitchDAC is an open source PCB design by svgeesus, published on GitHub under the MIT license. It is a 2-layer board measuring 59.9 × 29.7 mm, with 30 components from 13 distinct parts.
Other key parts include the AD5781xRUZ and opa2192. By type, the board carries 16 capacitors, 5 resistors, 3 ICs and 1 diode.
It belongs with the audio designs in this gallery.
From the project
Eurorack MPE implementation, 2 to 8 voices
Inspired by the use of duophony on the ARP 2600 and Odyssey, this is a MIDI to CV Eurorack module with twin outputs: low-note priority and high-note priority.
Re-utilising designs from the polyphonic Euro-MPE project, this aims to be a high-precison, flexible, and performance oriented duophonic MIDI to Eurorack CV module. It's MPE compatible, so there is independent expression on each of the two notes.
Main components on the PitchDAC
PitchDAC bill of materials (BOM)
30 components, 13 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | AD5781xRUZ | TSSOP-20_4.4x6.5mm_P0.65mm | IC1 |
| 2 | opa2192 | SO08 | U1, U2 |
| 1 | PINHD-1X6/90 | PinHeader_1x06_P2.54mm_Horizontal | PITCH0 |
| 1 | PINHD-1X4 | PinHeader_1x04_P2.54mm_Horizontal | PWR0 |
| 2 | PINHD-1X4 | PinSocket_1x04_P2.54mm_Vertical | REFN0, REFP0 |
| 1 | SPI | PinHeader_1x06_P2.54mm_Horizontal | SPI0 |
| 1 | D_Schottky | D_0805_2012Metric | D2 |
| 7 | 100nF | C_1206_3216Metric | C3, C4, C5, C6, C7, C8, C15 |
| 7 | 10uF | C_1206_3216Metric | C9, C10, C11, C12, C13, C14, C16 |
| 2 | 100pF | C_0805_2012Metric | C101, C201 |
| 2 | 4k7 | R_0805_2012Metric | R2, R5 |
| 2 | 220R | R_0805_2012Metric | R3, R6 |
| 1 | 10k | R_0805_2012Metric | R7 |
PitchDAC design files
The KiCad project lives in the svgeesus/EuroMPE repository on GitHub; these links point at the commit this page was built from.
PitchDAC: common questions
How big is the PitchDAC PCB?
The PitchDAC measures 59.9 × 29.7 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the PitchDAC?
30 components, from 13 distinct parts. The full bill of materials is listed on this page.
Where can I download the PitchDAC design files?
From the svgeesus/EuroMPE repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the PitchDAC design in my own project?
Yes, under the terms of its MIT license, which svgeesus chose for the repository.
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