2 layers99.1 × 99.1 mm
2 layers99.1 × 99.1 mm
Slope generators
JordanAceto/angelo_modular2modular analog synthesizer for a.p.
- Size
- 99.1 × 99.1 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 163
- Nets
- 105
- Pads
- 430
- Tracks, vias
- 924, 231
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 17 Jun 2020
- Updated
- 13 Aug 2020
Overview
Slope generators is an open-source printed circuit board by JordanAceto, from the JordanAceto/angelo_modular repository on GitHub, published under the CC-BY-4.0 licence. It is a 2-layer board of 99.1 × 99.1 mm with 163 parts on 105 nets, routed with 924 tracks and 231 vias.
It is built around the TL072, LM3900D and MMBT3904, with the MMBT3906 among its other parts. Its parts include 90 resistors, 22 capacitors, 16 diodes, 12 transistors and 6 ICs.
Main components
4
TL072
SOP-8-18V~18V 0℃~+70℃ 1.4mA 1.5nA 10V/us 10mV 2 2.5nA 3MHz 85dB SOP-8 Operational Amplifier ROHSGcoreOperational Amplifier
LM3900D
SOIC-14-16V~-2.2V、2.2V~16V 0℃~+70℃ 10mA 10mA 2.5MHz 200nA 20V/us 4 4.5V~32V 6.2mA 70dB Built-in compensation SOIC-14 Operational Amplifier ROHSTexas InstrumentsOperational Amplifier
MMBT3904
SOT-23-55℃~+150℃ 1 NPN 100 100nA 200mA 200mW 300MHz 300mV 40V 6V NPN SOT-23 Bipolar (BJT) ROHSJiangsu Changjing Electronics Technology (CJ)Bipolar (BJT)MMBT3906
SOT-23-55℃~+150℃ 1 PNP 100 100nA 200mA 200mW 300MHz 300mV 40V 5V PNP SOT-23 Bipolar (BJT) ROHSTWGMCBipolar (BJT)
README
README.mdCustom 5u format modular synth with 12 modules
Contains:
- VCO with 5-pulser waveshaper
- VCO with two sub-oscillators
- VCO with LFO range switch
- Voltage controlled wavefolder plus ring-modulator
- Voltage controlled filter with swapable filter-core plug-in boards
- Dual late MS20 style voltage controlled filter
- MIDI to CV plus audio input processor
- Dual 3-input DC coupled mixer
- Modulation source with voltage controlled LFO, sample-and-hold, and white noise source
- Dual Serge style slope generator
- Dual ADSR
- Dual VCA
- +/- 12 volt power supply
User manuals can be found in the /user_manuals/ directory. This directory also contains a document outlining any pcb kludges or changes to the current system.
Documentation for the pcbs is in the /pcb_docs/ directory
Documentation for each pcb consists of the following:
-
A very brief README outlining the basics of the pcb
-
/construction_docs/subdirectory which contains:- Gerbers for the circuit board
- An interactive BOM which can be opened in a web browser
- A pdf schematic
-
/kicad_docs/subdirectory which contains the files needed to edit the schematic and pcb layout with kicad -
/pics/subdirectory which contains a few rendered pictures of the pcb for reference
Parts
163| Qty | Value | Footprint | References |
|---|---|---|---|
| 24 | 100k | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R2, R3, R4, R10, R15, R17, R28, R30, R47, R48, R49, R51, R52, R53, R54, R55 +8 |
| 12 | D | Diode_SMD:D_SOD-123 | D1, D2, D3, D4, D5, D7, D9, D10, D11, D12, D13, D15 |
| 10 | 100nF | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C6, C7, C8, C9, C10, C11, C12, C13, C14, C15 |
| 8 | 220k | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R23, R26, R27, R34, R68, R71, R72, R79 |
| 8 | 33k | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R11, R12, R13, R14, R56, R57, R58, R59 |
| 6 | 100k | Potentiometer_THT:Potentiometer_Alpha_RD901F-40-00D_Single_Vertical | RV1, RV2, RV3, RV5, RV6, RV7 |
| 6 | 2k2 | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R31, R32, R41, R76, R77, R86 |
| 6 | 82k | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R18, R21, R29, R63, R66, R74 |
| 6 | MMBT3904 | Package_TO_SOT_SMD:SOT-23_Handsoldering | Q3, Q5, Q6, Q9, Q11, Q12 |
| 6 | MMBT3906 | Package_TO_SOT_SMD:SOT-23_Handsoldering | Q1, Q2, Q4, Q7, Q8, Q10 |
| 4 | 10M | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R35, R38, R80, R83 |
| 4 | 1M | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R39, R40, R84, R85 |
| 4 | 1k | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R42, R45, R87, R90 |
| 4 | 1nF | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C1, C2, C18, C19 |
| 4 | 47k | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R19, R20, R64, R65 |
| 4 | 47pF | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C3, C4, C20, C21 |
| 4 | 560k | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R5, R16, R50, R61 |
| 4 | 820k | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R22, R24, R67, R69 |
| 4 | TL072 | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U1, U2, U4, U5 |
| 2 | 100 | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R43, R88 |
| 2 | 100k | Potentiometer_THT:Potentiometer_Bourns_3296W_Vertical | RV4, RV8 |
| 2 | 10uF | Capacitor_THT:CP_Radial_D6.3mm_P2.50mm | C16, C17 |
| 2 | 150k | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R44, R89 |
| 2 | 1k8 | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R33, R78 |
| 2 | 22nF | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C5, C22 |
| 2 | 270k | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R1, R46 |
| 2 | 330k | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R37, R82 |
| 2 | 5v6 | Diode_SMD:D_SOD-123 | D6, D14 |
| 2 | 68k | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R25, R70 |
| 2 | 8k2 | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R36, R81 |
| 2 | LED | LED_THT:LED_D5.0mm | D8, D16 |
| 2 | LM3900 | Package_SO:SOIC-14_3.9x8.7mm_P1.27mm | U3, U6 |
| 2 | auto_cycle_switch | slope_generators:SPDT_on_on | SW2, SW5 |
| 2 | lin_expo_switch | slope_generators:SPDT_on_on | SW1, SW4 |
| 2 | rise-fall-both-switch | slope_generators:SPDT_on_on | SW3, SW6 |
| 1 | power_in | Connector_PinHeader_2.54mm:PinHeader_2x05_P2.54mm_Vertical | J3 |
| 1 | slope_1_port | Connector_PinHeader_2.54mm:PinHeader_1x07_P2.54mm_Vertical | J1 |
| 1 | slope_2_port | Connector_PinHeader_2.54mm:PinHeader_1x07_P2.54mm_Vertical | J2 |
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Questions
How big is the Slope generators PCB?
It measures 99.1 × 99.1 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Slope generators use?
163 parts, built around the TL072, LM3900D, MMBT3904 and MMBT3906. 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 Slope generators KiCad files?
From the JordanAceto/angelo_modular repository on GitHub, at the commit this page was made from: the board is pcb_docs/slope_generators/kicad_docs/slope_generators.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Slope generators design in my own project?
Its repository publishes it under the CC-BY-4.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).