4 layers79 × 142 mm
Guitarray control board
IIP-Group/polymap
Repository for the PolyMap Hardware and PolyMap Studio VST Plugin (prototype version).
757 parts4CERN-OHL-P-2.0
2 layers55 × 55 mm
Guitarray power
IIP-Group/polymap4Repository for the PolyMap Hardware and PolyMap Studio VST Plugin (prototype version).
- Size
- 55 × 55 mm
- Copper layers
- 2
- Thickness
- 1.09 mm
- Parts
- 58
- Nets
- 40
- Pads
- 196
- Tracks, vias
- 323, 103
- Pours
- 12
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 22 Apr 2026
- Updated
- 10 Aug 2026
Overview
Guitarray power is an open-source printed circuit board by IIP-Group, from the IIP-Group/polymap repository on GitHub, published under the CERN-OHL-P-2.0 licence. It is a 2-layer board of 55 × 55 mm with 58 parts on 40 nets, routed with 323 tracks and 103 vias.
It is built around the AP33771CFBZ-13-FA01, ISP772T and B340AE. Its parts include 19 capacitors, 11 resistors, 6 ICs, 6 inductors and 5 diodes.
Main components
3README
README.mdPolyMap
Repository for the PolyMap Hardware and PolyMap Studio VST Plugin (prototype version).
Kicad Ver.: 9.0.4
Vivado Ver.: 2023.2
JUCE Framework Ver.: v8.0.12
Dataset
To experiment with the PolyMap system without physical access, raw example recording with 64-channels is available for download here: https://iis-people.ee.ethz.ch/~datasets/PolyMap/
Licensing
This repository contains multiple components under different licenses:
- Hardware design files: CERN OHL-P v2 (see /LICENSE)
- Software Plugin in /code: MIT License (see /code/LICENSE)
- FPGA RTL in /RTL: MIT License (see /RTL/LICENSE)
Each subdirectory contains its own license file where applicable.
Parts
58| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | 10u | Capacitor_SMD:C_0603_1608Metric | C5, C9, C20, C24 |
| 4 | 1k | Resistor_SMD:R_0603_1608Metric | R1, R2, R7, R11 |
| 3 | 1u | Capacitor_SMD:C_0603_1608Metric | C3, C4, C8 |
| 3 | 330n | Capacitor_SMD:C_0603_1608Metric | C17, C19, C23 |
| 3 | 470u | Capacitor_SMD:CP_Elec_8x6.2 | C7, C21, C25 |
| 3 | MountingHole | MountingHole:MountingHole_3.2mm_M3_ISO7380_Pad_TopBottom | H1, H2, H3 |
| 2 | 100n | Capacitor_SMD:C_0603_1608Metric | C2, C16 |
| 2 | 10u | Inductor_SMD:L_TDK_SLF7045 | L6, L7 |
| 2 | 2.2u | Capacitor_SMD:C_0603_1608Metric | C18, C22 |
| 2 | 2u2 | customFP:ADL3225VM-2R2M | L2, L3 |
| 2 | 5k1 | Resistor_SMD:R_0603_1608Metric | R3, R4 |
| 2 | B340AE | Diode_SMD:D_SMA | D1, D3 |
| 1 | 100k | Resistor_SMD:R_0603_1608Metric | R5 |
| 1 | 10u | customFP:EIA1812 | L1 |
| 1 | 10u | Inductor_SMD:L_1210_3225Metric | L5 |
| 1 | 12V | TestPoint:TestPoint_THTPad_1.0x1.0mm_Drill0.5mm | TP2 |
| 1 | 200R | Resistor_SMD:R_0603_1608Metric | R10 |
| 1 | 47u | Capacitor_SMD:CP_Elec_6.3x5.7 | C15 |
| 1 | 4u7 | Capacitor_SMD:C_0603_1608Metric | C1 |
| 1 | 5m | Resistor_SMD:R_0805_2012Metric | R9 |
| 1 | 66k | Resistor_SMD:R_0603_1608Metric | R6 |
| 1 | 6k8 | Resistor_SMD:R_0603_1608Metric | R8 |
| 1 | 8V | Diode_SMD:D_SOD-323_HandSoldering | D4 |
| 1 | AP33771CFBZ-13-FA01 | customFP:AP33771CFBZ13FA01 | U1 |
| 1 | GND | TestPoint:TestPoint_THTPad_1.0x1.0mm_Drill0.5mm | TP3 |
| 1 | ISP772T | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U2 |
| 1 | Internal | customFP:MCX SMD | J3 |
| 1 | Jumper | Connector_PinHeader_2.54mm:PinHeader_2x05_P2.54mm_Vertical | J5 |
| 1 | LMR50410Y3 | Package_TO_SOT_SMD:SOT-23-6 | U8 |
| 1 | LMR50410Y5 | Package_TO_SOT_SMD:SOT-23-6 | U7 |
| 1 | MCP1700x-250xxTT | Package_TO_SOT_SMD:SOT-23 | U3 |
| 1 | Output Jack | customFP:BNC7T-J-P-XX-RA-BH2D | J1 |
| 1 | Power | LED_SMD:LED_0603_1608Metric | D5 |
| 1 | Power Out | Connector_PinHeader_2.54mm:PinHeader_2x06_P2.54mm_Vertical | J4 |
| 1 | Status | LED_SMD:LED_0603_1608Metric | D2 |
| 1 | UA78M09 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U6 |
| 1 | USB_C_Receptacle_USB2.0_14P | customFP:GCT_USB4210-GF-A_REVA | J2 |
| 1 | Vbus | TestPoint:TestPoint_THTPad_1.0x1.0mm_Drill0.5mm | TP1 |
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Questions
How big is the Guitarray power PCB?
It measures 55 × 55 mm and has 2 copper layers, 1.09 mm thick.
What parts does the Guitarray power use?
58 parts, built around the AP33771CFBZ-13-FA01, ISP772T and B340AE. 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 Guitarray power KiCad files?
From the IIP-Group/polymap repository on GitHub, at the commit this page was made from: the board is electrical/guitarray_power/guitarray_power.kicad_pcb and its schematic electrical/guitarray_control_board/guitarray_control_board.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Guitarray power design in my own project?
Its repository publishes it under the CERN-OHL-P-2.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).