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2 layers242.5 × 102.5 mmShmoergh funk live control, the printed circuit board in 3D

Shmoergh funk live control

peterzimon/funk-unit-synth5

Paraphonic synth for funk gigs

Size
242.5 × 102.5 mm
Copper layers
2
Thickness
1.6 mm
Parts
162
Nets
142
Pads
571
Tracks, vias
1,215, 112
Pours
1
Routed
Yes
KiCad
KiCad 7 (file 20221018)
Created
6 May 2023
Updated
27 Dec 2023

Overview

Shmoergh funk live control is an open-source printed circuit board by peterzimon, from the peterzimon/funk-unit-synth repository on GitHub, published under the MIT licence. It is a 2-layer board of 242.5 × 102.5 mm with 162 parts on 142 nets, routed with 1,215 tracks and 112 vias.

It is built around the TL072, MCP4822-E/P and NE5532, with the CD4051BE, L7805 and BC548 among its other parts. Its parts include 61 resistors, 25 capacitors, 11 ICs, 6 transistors and 6 connectors. It belongs with the audio and music boards and the RP2040 boards of this library.

Main components

8

README

README.md

Shmøergh Funk Live One — 6 voice paraphonic synthesizer

Shmøergh Funk Live One is a 6 voice (mostly) digitally controlled paraphonic analog synthesizer. Its purposefully built with limitations so it's great for live performances with quick changes in settings without presets or menu diving. It has a lot of simple but effective ways to modulate the filter cutoff which makes it great for funk performances. Because of its simplicity it's also cool to get started with synthesis.

Status: WORK IN PROGRESS

Latest version: 1.1

Features

  • 6 voices (DCOs) controlled by a Raspberry Pi Pico
  • Sawtooth, square, narrow pulse and fixed rate pulse with modulated square waveforms
  • Analog signal path
  • External filter connection with selectable various modulation sources (envelope, velocity, analog LFO, modwheel, keyboard tracking). Steiner-Parker filter schematics and PCB is included
  • 12bit digital ADSR with simplified envelope controls
  • Built-in analog VCA with optional external VCA connections
  • Monophonic, 3-voice unison with detune and 6-voice paraphonic modes
  • MIDI input
  • Eurorack compatible PCB sizing

Note: schematics does not include power supply

References

License & info

Version: 1.1.0 Author: Peter Zimon Copyright: 2023 Licence: MIT

Parts

162
QtyValueFootprintReferences
34100kShmoergh_Custom_Footprints:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_HorizontalR10, R11, R12, R13, R14, R15, R16, R17, R18, R19, R20, R21, R22, R23, R24, R25 +18
14100nCapacitor_THT:C_Disc_D3.0mm_W2.0mm_P2.50mmC1, C2, C3, C9, C10, C11, C12, C13, C14, C15, C16, C17, C18, C25
7TestPointTestPoint:TestPoint_THTPad_D2.0mm_Drill1.0mmTP_ENV_OUT1, TP_FILT_MOD1, TP_SAW_SUBMIX1, TP_SQR_SUBMIX1, TP_VCA_AU_IN1, TP_VCA_GATE1, TP_VCA_OUT1
6Conn_01x06Connector_PinHeader_2.54mm:PinHeader_1x06_P2.54mm_VerticalJ_VOICE_INTERFACE_1, J_VOICE_INTERFACE_2, J_VOICE_INTERFACE_3, J_VOICE_INTERFACE_4, J_VOICE_INTERFACE_5, J_VOICE_INTERFACE_6
6PowerConnector_PinHeader_2.54mm:PinHeader_2x03_P2.54mm_VerticalJ1, J2, J3, J4, J5, J6
5100kPotentiometer_THT:Potentiometer_Runtron_RM-065_VerticalRV_GATE_DAMP1, RV_LINE_OUT_LVL1, RV_NARROW_BIAS1, RV_PWM_BIAS1, RV_VCA_BIAS1
5Conn_01x06Shmoergh_Custom_Footprints:NSL25_01x06_VerticalJ_FILTER_IO1, J_FILTER_IO2, J_PWM_IO1, J_UI1, J_UI2
5MountingHoleMountingHole:MountingHole_3mm_PadH1, H2, H3, H4, H5
422kShmoergh_Custom_Footprints:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_HorizontalR6, R27, R51, R52
422pCapacitor_THT:C_Disc_D3.0mm_W2.0mm_P2.50mmC4, C5, C6, C7
447kShmoergh_Custom_Footprints:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_HorizontalR38, R39, R44, R45
4BC548PCM_Package_TO_SOT_THT_AKL:TO-92_Inline_WideQ3, Q4, Q5, Q6
4jmprPCM_Jumper_AKL_Double:Jumper_P2.54mm_D0.7mmJP_INTERNAL_VCA_GATE1, JP_INTERNAL_VCA_IN1, JP_INTERNAL_VCA_OUT1, JP_MCU_EXT_PWR2
31kShmoergh_Custom_Footprints:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_HorizontalR28, R29, R40
34.7kShmoergh_Custom_Footprints:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_HorizontalR2, R55, R56
3TL072PCM_Package_DIP_AKL:DIP-8_W7.62mm_LongPadsU3, U8, U10
2100Shmoergh_Custom_Footprints:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_HorizontalR30, R31
2100kShmoergh_Custom_Footprints:NSL25_01x03_VerticalRV_LFO_AMOUNT1, RV_LFO_SPEED1
2100uCapacitor_THT:CP_Radial_D6.3mm_P2.50mmC21, C22
2220Shmoergh_Custom_Footprints:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_HorizontalR1, R3
23.5mm jackShmoergh_Custom_Footprints:NSL25_01x02_Vertical-AudioJack-TSJ_HEADPHONES1, J_LINE_OUT1
233kShmoergh_Custom_Footprints:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_HorizontalR58, R59
2470Shmoergh_Custom_Footprints:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_HorizontalR54, R57
2Conn_01x02Shmoergh_Custom_Footprints:NSL25_01x02_VerticalJ_MIDI_IN1, J_UI3
2TL074PCM_Package_DIP_AKL:DIP-14_W7.62mm_LongPadsU6, U9
1100k-1MShmoergh_Custom_Footprints:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_HorizontalR42
110kPotentiometer_THT:Potentiometer_Runtron_RM-065_VerticalRV_HEADPHONE_LIM1
110kPotentiometer_THT:Potentiometer_Bourns_3296W_VerticalRV_REJECTION1
110kShmoergh_Custom_Footprints:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_HorizontalR37
110uCapacitor_THT:CP_Radial_D6.3mm_P2.50mmC23
11MShmoergh_Custom_Footprints:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_HorizontalR26
11MPotentiometer_THT:Potentiometer_Runtron_RM-065_VerticalRV_PWM_FREQ1
11N4001Diode_THT:D_DO-41_SOD81_P7.62mm_HorizontalD2
11N4148Diode_THT:D_DO-35_SOD27_P7.62mm_HorizontalD1
1200kPotentiometer_THT:Potentiometer_Runtron_RM-065_VerticalRV_ENV_GAIN1
1200kShmoergh_Custom_Footprints:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_HorizontalR5
1220kShmoergh_Custom_Footprints:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_HorizontalR43
122n-47n (foil)Capacitor_THT:C_Rect_L7.0mm_W3.5mm_P5.00mmC19
1330nCapacitor_THT:C_Disc_D3.0mm_W2.0mm_P2.50mmC24
1470n (foil)Capacitor_THT:C_Rect_L7.0mm_W3.5mm_P5.00mmC8
1470n foilCapacitor_THT:C_Rect_L7.0mm_W3.5mm_P5.00mmC20
16N138PCM_Package_DIP_AKL:DIP-8_W7.62mm_LongPadsU2
1A100kShmoergh_Custom_Footprints:NSL25_01x03_VerticalRV_MAIN_VOL1
1BC548CPCM_Package_TO_SOT_THT_AKL:TO-92_Inline_WideQ1
1BC558PCM_Package_TO_SOT_THT_AKL:TO-92_Inline_WideQ2
1CD4051BPCM_Package_DIP_AKL:DIP-16_W7.62mm_LongPadsU4
1Conn_01x03Shmoergh_Custom_Footprints:NSL25_01x03_VerticalJ_EXTERNAL_VCA1
1Conn_01x03_PinShmoergh_Custom_Footprints:NSL25_01x03_VerticalJ_PANEL_GND1
1Conn_01x04Shmoergh_Custom_Footprints:NSL25_01x04_VerticalJ_SWD_IO1
1Conn_01x05Shmoergh_Custom_Footprints:NSL25_01x05_VerticalJ_FILTER_INTERFACE_1
1Euro PowerConnector_IDC:IDC-Header_2x05_P2.54mm_VerticalJ_POWER1
1L7805PCM_Package_TO_SOT_THT_AKL:TO-220-3_VerticalU11
1LOGOShmoergh_Custom_Footprints:GyesznoG***
1MCP4822PCM_Package_DIP_AKL:DIP-8_W7.62mm_LongPadsU5
1NE5532PCM_Package_DIP_AKL:DIP-8_W7.62mm_LongPadsU7
1PicoMCU_RaspberryPi_and_Boards:RPi_Pico_SMD_THU1
1Red LEDLED_THT:LED_D5.0mmD_NEGATIVE_LIMITER1
1SW_SPDTShmoergh_Custom_Footprints:NSL25_01x03_VerticalSW_WAVESHAPE1

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Questions

How big is the Shmoergh funk live control PCB?

It measures 242.5 × 102.5 mm and has 2 copper layers, 1.6 mm thick.

What parts does the Shmoergh funk live control use?

162 parts, built around the TL072, MCP4822-E/P, NE5532 and CD4051BE. 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 Shmoergh funk live control KiCad files?

From the peterzimon/funk-unit-synth repository on GitHub, at the commit this page was made from: the board is 1.0/schematics/control/shmoergh-funk-live-control.kicad_pcb and its schematic 1.0/schematics/control/sheets/adsr.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the Shmoergh funk live control design in my own project?

Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).