

Shmoergh funk live control
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
8TL072
SOP-8-18V~18V 0℃~+70℃ 1.4mA 1.5nA 10V/us 10mV 2 2.5nA 3MHz 85dB SOP-8 Operational Amplifier ROHSGcoreOperational AmplifierMCP4822-E/P
PDIP-8-40℃~+125℃ 12 12LSB 2 2.7V~5.5V 20MHz 4.5us 415uA 50ppm/℃ Built-in Built-in SPI Voltage Buffer PDIP-8 Digital to Analog Converters (DAC) ROHSMicrochip TechnologyDigital To Analog Converters (DAC)NE5532
SOP-8-22V~22V 0℃~+70℃ 100dB 10nA 14mA 2 40V/us 42mA 4mV 800nA 8nV/√Hz@30Hz Built-in compensation SOP-8 Operational Amplifier ROHSSungineOperational AmplifierCD4051BE
PDIP-16-55℃~+125℃ 125Ω 20MHz 3V~20V 450ns 8 8:1 PDIP-16 Analog Switches, Multiplexers ROHSTexas InstrumentsAnalog Switches, MultiplexersL7805
TO-220ST0℃~+125℃@(Tj) 1 1.2A 20V 2V@(1A) 42uV 500uA 5V 73dB@(120Hz) Fixed Positive Short Circuit Protection TO-220ST Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSOSENVoltage Regulators - Linear, Low Drop Out (LDO) RegulatorsBC548
TO-92TO-92 Bipolar (BJT) ROHSDDFBipolar (BJT)BC548C
TO-92-55℃~+150℃ 100mA 15nA 300MHz 30V 420 600mV NPN TO-92 Bipolar (BJT) ROHSDIOTECBipolar (BJT)BC558
TO-921 PNP 100mA 100nA 150MHz 30V 500mW 5V 800 90mV、250mV PNP TO-92 Bipolar (BJT) ROHSDDFBipolar (BJT)
README
README.mdShmøergh 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| Qty | Value | Footprint | References |
|---|---|---|---|
| 34 | 100k | Shmoergh_Custom_Footprints:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R10, R11, R12, R13, R14, R15, R16, R17, R18, R19, R20, R21, R22, R23, R24, R25 +18 |
| 14 | 100n | Capacitor_THT:C_Disc_D3.0mm_W2.0mm_P2.50mm | C1, C2, C3, C9, C10, C11, C12, C13, C14, C15, C16, C17, C18, C25 |
| 7 | TestPoint | TestPoint:TestPoint_THTPad_D2.0mm_Drill1.0mm | TP_ENV_OUT1, TP_FILT_MOD1, TP_SAW_SUBMIX1, TP_SQR_SUBMIX1, TP_VCA_AU_IN1, TP_VCA_GATE1, TP_VCA_OUT1 |
| 6 | Conn_01x06 | Connector_PinHeader_2.54mm:PinHeader_1x06_P2.54mm_Vertical | J_VOICE_INTERFACE_1, J_VOICE_INTERFACE_2, J_VOICE_INTERFACE_3, J_VOICE_INTERFACE_4, J_VOICE_INTERFACE_5, J_VOICE_INTERFACE_6 |
| 6 | Power | Connector_PinHeader_2.54mm:PinHeader_2x03_P2.54mm_Vertical | J1, J2, J3, J4, J5, J6 |
| 5 | 100k | Potentiometer_THT:Potentiometer_Runtron_RM-065_Vertical | RV_GATE_DAMP1, RV_LINE_OUT_LVL1, RV_NARROW_BIAS1, RV_PWM_BIAS1, RV_VCA_BIAS1 |
| 5 | Conn_01x06 | Shmoergh_Custom_Footprints:NSL25_01x06_Vertical | J_FILTER_IO1, J_FILTER_IO2, J_PWM_IO1, J_UI1, J_UI2 |
| 5 | MountingHole | MountingHole:MountingHole_3mm_Pad | H1, H2, H3, H4, H5 |
| 4 | 22k | Shmoergh_Custom_Footprints:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R6, R27, R51, R52 |
| 4 | 22p | Capacitor_THT:C_Disc_D3.0mm_W2.0mm_P2.50mm | C4, C5, C6, C7 |
| 4 | 47k | Shmoergh_Custom_Footprints:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R38, R39, R44, R45 |
| 4 | BC548 | PCM_Package_TO_SOT_THT_AKL:TO-92_Inline_Wide | Q3, Q4, Q5, Q6 |
| 4 | jmpr | PCM_Jumper_AKL_Double:Jumper_P2.54mm_D0.7mm | JP_INTERNAL_VCA_GATE1, JP_INTERNAL_VCA_IN1, JP_INTERNAL_VCA_OUT1, JP_MCU_EXT_PWR2 |
| 3 | 1k | Shmoergh_Custom_Footprints:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R28, R29, R40 |
| 3 | 4.7k | Shmoergh_Custom_Footprints:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R2, R55, R56 |
| 3 | TL072 | PCM_Package_DIP_AKL:DIP-8_W7.62mm_LongPads | U3, U8, U10 |
| 2 | 100 | Shmoergh_Custom_Footprints:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R30, R31 |
| 2 | 100k | Shmoergh_Custom_Footprints:NSL25_01x03_Vertical | RV_LFO_AMOUNT1, RV_LFO_SPEED1 |
| 2 | 100u | Capacitor_THT:CP_Radial_D6.3mm_P2.50mm | C21, C22 |
| 2 | 220 | Shmoergh_Custom_Footprints:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R1, R3 |
| 2 | 3.5mm jack | Shmoergh_Custom_Footprints:NSL25_01x02_Vertical-AudioJack-TS | J_HEADPHONES1, J_LINE_OUT1 |
| 2 | 33k | Shmoergh_Custom_Footprints:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R58, R59 |
| 2 | 470 | Shmoergh_Custom_Footprints:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R54, R57 |
| 2 | Conn_01x02 | Shmoergh_Custom_Footprints:NSL25_01x02_Vertical | J_MIDI_IN1, J_UI3 |
| 2 | TL074 | PCM_Package_DIP_AKL:DIP-14_W7.62mm_LongPads | U6, U9 |
| 1 | 100k-1M | Shmoergh_Custom_Footprints:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R42 |
| 1 | 10k | Potentiometer_THT:Potentiometer_Runtron_RM-065_Vertical | RV_HEADPHONE_LIM1 |
| 1 | 10k | Potentiometer_THT:Potentiometer_Bourns_3296W_Vertical | RV_REJECTION1 |
| 1 | 10k | Shmoergh_Custom_Footprints:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R37 |
| 1 | 10u | Capacitor_THT:CP_Radial_D6.3mm_P2.50mm | C23 |
| 1 | 1M | Shmoergh_Custom_Footprints:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R26 |
| 1 | 1M | Potentiometer_THT:Potentiometer_Runtron_RM-065_Vertical | RV_PWM_FREQ1 |
| 1 | 1N4001 | Diode_THT:D_DO-41_SOD81_P7.62mm_Horizontal | D2 |
| 1 | 1N4148 | Diode_THT:D_DO-35_SOD27_P7.62mm_Horizontal | D1 |
| 1 | 200k | Potentiometer_THT:Potentiometer_Runtron_RM-065_Vertical | RV_ENV_GAIN1 |
| 1 | 200k | Shmoergh_Custom_Footprints:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R5 |
| 1 | 220k | Shmoergh_Custom_Footprints:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R43 |
| 1 | 22n-47n (foil) | Capacitor_THT:C_Rect_L7.0mm_W3.5mm_P5.00mm | C19 |
| 1 | 330n | Capacitor_THT:C_Disc_D3.0mm_W2.0mm_P2.50mm | C24 |
| 1 | 470n (foil) | Capacitor_THT:C_Rect_L7.0mm_W3.5mm_P5.00mm | C8 |
| 1 | 470n foil | Capacitor_THT:C_Rect_L7.0mm_W3.5mm_P5.00mm | C20 |
| 1 | 6N138 | PCM_Package_DIP_AKL:DIP-8_W7.62mm_LongPads | U2 |
| 1 | A100k | Shmoergh_Custom_Footprints:NSL25_01x03_Vertical | RV_MAIN_VOL1 |
| 1 | BC548C | PCM_Package_TO_SOT_THT_AKL:TO-92_Inline_Wide | Q1 |
| 1 | BC558 | PCM_Package_TO_SOT_THT_AKL:TO-92_Inline_Wide | Q2 |
| 1 | CD4051B | PCM_Package_DIP_AKL:DIP-16_W7.62mm_LongPads | U4 |
| 1 | Conn_01x03 | Shmoergh_Custom_Footprints:NSL25_01x03_Vertical | J_EXTERNAL_VCA1 |
| 1 | Conn_01x03_Pin | Shmoergh_Custom_Footprints:NSL25_01x03_Vertical | J_PANEL_GND1 |
| 1 | Conn_01x04 | Shmoergh_Custom_Footprints:NSL25_01x04_Vertical | J_SWD_IO1 |
| 1 | Conn_01x05 | Shmoergh_Custom_Footprints:NSL25_01x05_Vertical | J_FILTER_INTERFACE_1 |
| 1 | Euro Power | Connector_IDC:IDC-Header_2x05_P2.54mm_Vertical | J_POWER1 |
| 1 | L7805 | PCM_Package_TO_SOT_THT_AKL:TO-220-3_Vertical | U11 |
| 1 | LOGO | Shmoergh_Custom_Footprints:Gyeszno | G*** |
| 1 | MCP4822 | PCM_Package_DIP_AKL:DIP-8_W7.62mm_LongPads | U5 |
| 1 | NE5532 | PCM_Package_DIP_AKL:DIP-8_W7.62mm_LongPads | U7 |
| 1 | Pico | MCU_RaspberryPi_and_Boards:RPi_Pico_SMD_TH | U1 |
| 1 | Red LED | LED_THT:LED_D5.0mm | D_NEGATIVE_LIMITER1 |
| 1 | SW_SPDT | Shmoergh_Custom_Footprints:NSL25_01x03_Vertical | SW_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).