

Pfm3 ctrl
Official repo of the preenfm3 FM synth
- Size
- 135 × 87 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 63
- Nets
- 47
- Pads
- 241
- Tracks, vias
- 605, 55
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 10 Sep 2020
- Updated
- 17 Mar 2024
Overview
Pfm3 ctrl is an open-source printed circuit board by Ixox, from the Ixox/preenfm3 repository on GitHub. It is a 2-layer board of 135 × 87 mm with 63 parts on 47 nets, routed with 605 tracks and 55 vias.
It is built around the 74HC165D. Its parts include 33 resistors, 12 switches, 4 capacitors, 4 ICs and 1 diode.
Main components
1README
README.mdpreenfm3
Here are the sources for the preenfm3 bootloader and firmware.
Binaries can be found in the Release section.
For the documentation, go to the Wiki.
Xavier
Parts
63| Qty | Value | Footprint | References |
|---|---|---|---|
| 32 | 10k | Resistor_SMD:R_0402_1005Metric | R2, R10, R11, R12, R13, R14, R15, R16, R17, R18, R19, R20, R21, R22, R23, R24 +16 |
| 12 | Push | A_PFM3:FMButton2 | SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8, SW9, SW10, SW11, SW12 |
| 4 | 100nF | Capacitor_SMD:C_0402_1005Metric | C1, C2, C3, C4 |
| 4 | 74hc165 | Package_SO:SOIC-16_3.9x9.9mm_P1.27mm | U1, U2, U3, U4 |
| 1 | 470 | Resistor_SMD:R_0603_1608Metric | R1 |
| 1 | Conn_01x06 | A_PFM3:ControlBoard_2 | J1 |
| 1 | JLCJLCJLCJLC | A_PFM3:JLCJLC | JLC1 |
| 1 | LED | LED_SMD:LED_0603_1608Metric | D1 |
| 1 | Logo | A_PFM3:pfm2_logo | L1 |
| 1 | a | A_PFM3:FMEncoder2_pfm3 | Enc1 |
| 1 | b | A_PFM3:FMEncoder2_pfm3 | Enc2 |
| 1 | c | A_PFM3:FMEncoder2_pfm3 | Enc3 |
| 1 | d | A_PFM3:FMEncoder2_pfm3 | Enc4 |
| 1 | e | A_PFM3:FMEncoder2_pfm3 | Enc5 |
| 1 | f | A_PFM3:FMEncoder2_pfm3 | Enc6 |
Questions
How big is the Pfm3 ctrl PCB?
It measures 135 × 87 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Pfm3 ctrl use?
63 parts, built around the 74HC165D. 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 Pfm3 ctrl KiCad files?
From the Ixox/preenfm3 repository on GitHub, at the commit this page was made from: the board is hardware/controlboard_SMD/v1.x_for_v2.x/pfm3_ctrl.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Pfm3 ctrl design in my own project?
Its repository states no licence, so its author keeps all rights: ask Ixox before reusing the design.
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