2 layers80 × 130 mm
E003-capstan
KP1533TM2/e003-capstan
Блок управления ведущим двигателем Олимпа 003 с ФАПЧ, основанный на БУВД самодельного магнитофона TK-140 leoniv
130 parts1
2 layers97.3 × 128.5 mm
MHz oscillator
backtail/mHz-oscillator96 HP eurorack LFO with manual trigger/retrigger
- Size
- 97.3 × 128.5 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 141
- Nets
- 122
- Pads
- 418
- Tracks, vias
- 822, 105
- Pours
- 3
- Routed
- Yes
- KiCad
- KiCad 6 (file 20211014)
- Created
- 30 Mar 2022
- Updated
- 23 Oct 2024
Overview
MHz oscillator is an open-source printed circuit board by backtail, from the backtail/mHz-oscillator repository on GitHub. It is a 2-layer board of 97.3 × 128.5 mm with 141 parts on 122 nets, routed with 822 tracks and 105 vias.
It is built around the LM324, LM311 and BC847. Its parts include 53 resistors, 19 capacitors, 17 connectors, 11 diodes and 8 ICs. It belongs with the audio and music boards of this library.
Main components
3
LM324
SOP-14-1.5V~10V 0℃~+70℃ 24V 250nA 3V~20V 4 40mA 50nA 700uA 7mV 80dB SOP-14 Operational Amplifier ROHSHXY MOSFETOperational Amplifier
LM311
SOP-80℃~+70℃ 1 1.7nA 2.4mA 200ns 2mV 36V 45nA 5V~30V TTL、CMOS ±15V SOP-8 Comparators ROHSGcoreComparators
BC847
SOT-231 NPN 100MHz 100mA 100nA 110 200mW 45V 500mV 6V NPN SOT-23 Bipolar (BJT) ROHSShikuesBipolar (BJT)
README
README.mdmHz oscillator
6HP Eurorack module
Voltage Controlled LFO
Render
Input
- trig cv: regular gate
- freq cv: non-exponentiated frequency control
Pots
- freq: 30mHz to 30 Hz
- pwm: duty cycle of square wave
Switches
- speed:
up= fast,down= slow - mode:
up= loops around,down= stops after one cycle (retrigger) - trig: manual (re)trigger
Output
All 4 basic waveforms with indicator LED in the range of 0-5V
Footprints Libraries
Use provided submodule folder to link footprints locally in the project
- OS_Connectors
- OS_Scribbles
Parts
141| Qty | Value | Footprint | References |
|---|---|---|---|
| 15 | 100n | Capacitor_SMD:C_1206_3216Metric | C3, C4, C6, C7, C8, C9, C10, C12, C13, C14, C15, C16, C17, C18, C19 |
| 14 | 10k | Resistor_SMD:R_1206_3216Metric | R1, R7, R12, R13, R35, R36, R37, R40, R41, R43, R48, R49, R51, R52 |
| 12 | 100k | Resistor_SMD:R_1206_3216Metric | R5, R6, R8, R9, R15, R22, R23, R27, R28, R34, R45, R50 |
| 7 | 1N4148 | Diode_SMD:D_1206_3216Metric | D1, D2, D3, D4, D5, D6, D7 |
| 5 | LM324 | Package_SO:SOIC-14_3.9x8.7mm_P1.27mm | U1, U3, U5, U6, U8 |
| 4 | 100k | Potentiometer_SMD:Potentiometer_Bourns_TC33X_Vertical | RV2, RV3, RV4, RV5 |
| 4 | 2k7 | Resistor_SMD:R_1206_3216Metric | R2, R16, R32, R42 |
| 4 | 3k3 | Resistor_SMD:R_1206_3216Metric | R11, R25, R29, R39 |
| 4 | 860k | Resistor_SMD:R_1206_3216Metric | R4, R19, R33, R44 |
| 4 | Blue | LED_THT:LED_D1.8mm_W3.3mm_H2.4mm | D8, D9, D10, D11 |
| 3 | , , | ||
| 3 | Conn_01x06_Female | Connector_PinSocket_2.54mm:PinSocket_1x06_P2.54mm_Vertical | J2, J4, J6 |
| 3 | Conn_01x06_Male | Connector_PinHeader_2.54mm:PinHeader_1x06_P2.54mm_Vertical | J1, J3, J5 |
| 2 | OS_Scribbles:silkscreen_alien_small | , | |
| 2 | OS_Scribbles:silkscreen_alien | , | |
| 2 | 1meg | Resistor_SMD:R_1206_3216Metric | R18, R21 |
| 2 | 22k | Resistor_SMD:R_1206_3216Metric | R17, R53 |
| 2 | 33k | Resistor_SMD:R_1206_3216Metric | R30, R47 |
| 2 | 47n | Capacitor_SMD:C_1206_3216Metric | C5, C11 |
| 2 | BC847 | Package_TO_SOT_SMD:SOT-23 | Q1, Q2 |
| 2 | Conn_01x05_Female | Connector_PinSocket_2.54mm:PinSocket_1x05_P2.54mm_Vertical | J8, J10 |
| 2 | Conn_01x05_Male | Connector_PinHeader_2.54mm:PinHeader_1x05_P2.54mm_Vertical | J7, J9 |
| 1 | 100k lin | OS_Potentiometers:Potentiometer_RK09_RV09_Vertical | RV6 |
| 1 | 100k log | OS_Potentiometers:Potentiometer_RK09_RV09_Vertical | RV7 |
| 1 | 10k | Potentiometer_SMD:Potentiometer_Bourns_TC33X_Vertical | RV1 |
| 1 | 12k | Resistor_SMD:R_1206_3216Metric | R26 |
| 1 | 150k | Resistor_SMD:R_1206_3216Metric | R3 |
| 1 | 180k | Resistor_SMD:R_1206_3216Metric | R20 |
| 1 | 1k | Resistor_SMD:R_1206_3216Metric | R10 |
| 1 | 27k | Resistor_SMD:R_1206_3216Metric | R38 |
| 1 | 3k9 | Resistor_SMD:R_1206_3216Metric | R46 |
| 1 | 4013 | Package_SO:SOIC-14_3.9x8.7mm_P1.27mm | U2 |
| 1 | 4071 | Package_SO:SOIC-14_3.9x8.7mm_P1.27mm | U4 |
| 1 | 43k | Resistor_SMD:R_1206_3216Metric | R14 |
| 1 | 470n | Capacitor_SMD:C_1206_3216Metric | C2 |
| 1 | 47k | Resistor_SMD:R_1206_3216Metric | R31 |
| 1 | 56k | Resistor_SMD:R_1206_3216Metric | R24 |
| 1 | 69n | Capacitor_SMD:C_1206_3216Metric | C1 |
| 1 | CV_in | OS_Connectors:Jack_3.5mm_PJ392_Vertical | J17 |
| 1 | Conn_02x08_Odd_Even | Connector_IDC:IDC-Header_2x08_P2.54mm_Vertical | J11 |
| 1 | Freq Range | OS_Switches:SW_STMS-102-Micro_Toggle_Switch_SPDT_Vertical | SW2 |
| 1 | LM311 | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U7 |
| 1 | LOGO | frontpanel:frontpanel | G*** |
| 1 | One Shot or Continous | OS_Switches:SW_STMS-102-Micro_Toggle_Switch_SPDT_Vertical | SW3 |
| 1 | Saw | OS_Connectors:Jack_3.5mm_PJ392_Vertical | J12 |
| 1 | Sine | OS_Connectors:Jack_3.5mm_PJ392_Vertical | J15 |
| 1 | Sqaure | OS_Connectors:Jack_3.5mm_PJ392_Vertical | J13 |
| 1 | Triangle | OS_Connectors:Jack_3.5mm_PJ392_Vertical | J14 |
| 1 | Trigger | OS_Connectors:Jack_3.5mm_PJ392_Vertical | J16 |
| 1 | Trigger Button | OS_Switches:SW_PBS-110_Normally-Open_Push_Button | SW1 |
The 128 most common of 141 parts.
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Questions
How big is the MHz oscillator PCB?
It measures 97.3 × 128.5 mm and has 2 copper layers, 1.6 mm thick.
What parts does the MHz oscillator use?
141 parts, built around the LM324, LM311 and BC847. 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 MHz oscillator KiCad files?
From the backtail/mHz-oscillator repository on GitHub, at the commit this page was made from: the board is KiCad_Project/mHz_oscillator.kicad_pcb and its schematic KiCad_Project/interface_pcb.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the MHz oscillator design in my own project?
Its repository states no licence, so its author keeps all rights: ask backtail before reusing the design.