Skip to the content
2 layers95 × 75 mmOPMBoard, the printed circuit board in 3D
Size
95 × 75 mm
Copper layers
2
Thickness
1.6 mm
Parts
54
Nets
69
Pads
240
Tracks, vias
617, 2
Routed
Yes
KiCad
KiCad 6 (file 20211014)
Created
26 Sep 2022
Updated
5 Oct 2022

Overview

OPMBoard is an open-source printed circuit board by Team-Digital-Fairy, from the Team-Digital-Fairy/OPMBoard repository on GitHub. It is a 2-layer board of 95 × 75 mm with 54 parts on 69 nets, routed with 617 tracks and 2 vias.

It is built around the NJM4580L. Its parts include 16 resistors, 11 capacitors, 5 ICs, 4 connectors and 3 diodes.

Main components

1

Parts

54
QtyValueFootprintReferences
410kResistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_HorizontalR9, R10, R12, R14
4MountingHoleMountingHole:MountingHole_3.2mm_M3H1, H2, H3, H4
32kResistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_HorizontalR2, R3, R4
3NJM4580Package_DIP:DIP-8_W7.62mm_Socket_LongPadsU1, U2, U3
2100uCapacitor_THT:CP_Radial_D6.3mm_P2.50mmC1, C2
210kBPotentiometer_THT:Potentiometer_Bourns_3386P_VerticalRV1, RV2
210uCapacitor_THT:CP_Radial_D5.0mm_P2.50mmC8, C9
2200kResistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_HorizontalR5, R6
23300pCapacitor_THT:C_Disc_D5.0mm_W2.5mm_P5.00mmC3, C4
247Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_HorizontalR15, R16
2470uCapacitor_THT:CP_Radial_D5.0mm_P2.00mmC10, C11
247kResistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_HorizontalR11, R13
247uFCapacitor_THT:CP_Radial_D5.0mm_P2.50mmC5, C6
25.1kResistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_HorizontalR7, R8
1-5V_GREENLED_THT:LED_D5.0mmD3
1270Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_HorizontalR1
14.7k * 8Resistor_THT:R_Array_SIP9RN1
14.7uCapacitor_THT:CP_Radial_D5.0mm_P2.50mmC7
14.7uHInductor_THT:L_Axial_L7.0mm_D3.3mm_P12.70mm_Horizontal_Fastron_MICCL1
15V_GREENLED_THT:LED_D5.0mmD1
1AudioJack3Connector_Audio:Jack_3.5mm_Lumberg_1503_07_HorizontalJ4
1CXO_DIP14MayLib:Oscillator_DIP-14_FullX1
1CXO_DIP8MayLib:Oscillator_DIP-8_FullX2
1Conn_01x03Connector_PinSocket_2.54mm:PinSocket_1x03_P2.54mm_VerticalJ3
1Conn_02x12_Odd_EvenConnector_PinHeader_2.54mm:PinHeader_2x12_P2.54mm_VerticalJ2
1FiducialFiducial:Fiducial_0.5mm_Mask1mmFID1
1ITX0505S-RConverter_DCDC:Converter_DCDC_XP_POWER-ITxxxxxS_THTPS1
1Jumper_2_OpenConnector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_VerticalJP1
1Jumper_3_OpenConnector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_VerticalJP2
1SW_SPDTButton_Switch_THT:SW_Slide_1P2T_CK_OS102011MS2QSW1
1USB_C_Receptacle_USB2.0Connector_USB:USB_C_Receptacle_HRO_TYPE-C-31-M-12J1
1VDD_GREENLED_THT:LED_D5.0mmD2
1YM2151Package_DIP:DIP-24_W15.24mm_Socket_LongPadsU4
1YM3012Package_DIP:DIP-16_W7.62mm_Socket_LongPadsU5

Similar boards

  • 2 layers180 × 110 mmISD1700 sampler main board, the printed circuit board in 3D

    ISD1700 sampler main board

    hiro-akihabara/OpnBeat

    OpnBeat is open source Lo-fi sampler project

    180 parts67GPL-3.0
  • 2 layers116.6 × 93.3 mmUsbdac, the printed circuit board in 3D

    Usbdac

    rspg/usb_sound_card_with_pico

    USB Sound Card with Raspberry Pi Pico Hard&Firm

    125 parts14
  • 2 layers147.4 × 63.2 mmGuitar down octave, the printed circuit board in 3D

    Guitar down octave

    MR-DOS/guitar_down_octave

    A octave-down effect for guitar. All analog, no microcontroller, no DSP.

    219 parts5GPL-3.0
  • 2 layers100 × 84 mmRadio adapter, the printed circuit board in 3D

    Radio adapter

    open-headset-interconnect-standard/radio-adapter

    An open-source OHIS Radio Adapter.

    150 parts4CC-BY-4.0
  • 2 layers210 × 140 mmGifu creation koubou, the printed circuit board in 3D

    Gifu creation koubou

    kinoshita-lab/gifu-creation-koubou-teaching-material

    109 parts3MIT
  • 2 layers100 × 69 mmAnalog, the printed circuit board in 3D

    Analog

    sbarry753/cse123

    computer engineering capstone group project

    40 parts3
  • 2 layersPico SMSFM, the printed circuit board in 3D

    Pico SMSFM

    knight-ryu12/pico-SMSFM

    31 parts1
  • 2 layers50 × 50 mmRIAAPre, the printed circuit board in 3D

    RIAAPre

    ABillBlakely/Zinc-Box

    The Feature Complete RIAA Preamp

    42 parts

Questions

How big is the OPMBoard PCB?

It measures 95 × 75 mm and has 2 copper layers, 1.6 mm thick.

What parts does the OPMBoard use?

54 parts, built around the NJM4580L. 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 OPMBoard KiCad files?

From the Team-Digital-Fairy/OPMBoard repository on GitHub, at the commit this page was made from: the board is OPMBoard.kicad_pcb and its schematic OPMBoard.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the OPMBoard design in my own project?

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