2 layers99.1 × 99.1 mm
2 layers
Backup1
vk2gpu/4op_drum_synth2OPL3 based 4-op drum synth module
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 101
- Nets
- 125
- Pads
- 415
- Tracks, vias
- 780, 111
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 19 Jan 2019
- Updated
- 4 Sep 2019
Overview
Backup1 is an open-source printed circuit board by vk2gpu, from the vk2gpu/4op_drum_synth repository on GitHub. It is a 2-layer board with 101 parts on 125 nets, routed with 780 tracks and 111 vias.
It is built around the 74HC14, 74HCT595D and L78L05CZ. Its parts include 24 diodes, 23 resistors, 20 capacitors, 14 connectors and 11 switches. It belongs with the STM32 boards of this library.
Main components
3
74HC14
SOP-14-40℃~+85℃ 1.9V、3.98V、4.4V、5.48V、5.9V 100mV、260mV、260mV 20uA 25ns@4.5V,50pF 2V~6V 6 74HC Noise suppression function Schmitt trigger SOP-14 Inverters ROHSJSMSEMIInverters
74HCT595D
SOIC-16-40℃~+125℃ 1 25ns@4.5V,50pF 30MHz 4.5V~5.5V 500mW 6mA 74HCT 8 Serial-to-Serial or Parallel Tri-State SOIC-16 Shift Registers ROHSNexperiaShift Registers
L78L05CZ
TO-920℃~+125℃ 100mA 30V 40uV 49dB@(120Hz) 5V Fixed Over Temperature Protection、Short Circuit Protection Positive TO-92 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSSTMicroelectronicsPower Management - Specialized
Parts
101| Qty | Value | Footprint | References |
|---|---|---|---|
| 15 | 1N4148 | Diode_SMD:D_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20, D21, D22, D23, D24 |
| 15 | 1k | Resistor_SMD:R_0603_1608Metric_Pad1.05x0.95mm_HandSolder | R9, R10, R11, R12, R13, R14, R15, R16, R17, R18, R19, R20, R21, R22, R23 |
| 9 | 100nF | Capacitor_SMD:C_0603_1608Metric_Pad1.05x0.95mm_HandSolder | C4, C5, C6, C7, C8, C17, C18, C19, C20 |
| 6 | 100k | Resistor_SMD:R_0603_1608Metric_Pad1.05x0.95mm_HandSolder | R3, R4, R5, R6, R7, R8 |
| 6 | LED | LED_SMD:LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D4, D5, D6, D7, D8, D9 |
| 6 | SW_Push | Button_Switch_SMD:SW_SPST_EVQP0 | SW1, SW2, SW3, SW4, SW5, SW6 |
| 4 | 2700pF | Capacitor_SMD:C_0603_1608Metric_Pad1.05x0.95mm_HandSolder | C13, C14, C15, C16 |
| 4 | AudioJack2_Ground | Connector_Audio:Jack_3.5mm_QingPu_WQP-PJ398SM_Vertical_CircularHoles_TS | J10, J11, J12, J13 |
| 3 | 1N4004 | Diode_SMD:D_SOD-123F | D1, D2, D3 |
| 2 | 10 | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R1, R2 |
| 2 | 10uF | Capacitor_SMD:C_0603_1608Metric_Pad1.05x0.95mm_HandSolder | C11, C12 |
| 2 | 22uF | Capacitor_SMD:C_1206_3216Metric_Pad1.42x1.75mm_HandSolder | C1, C2 |
| 2 | 33pf | Capacitor_SMD:C_0603_1608Metric_Pad1.05x0.95mm_HandSolder | C9, C10 |
| 2 | TL074 | Package_SO:SOIC-14_3.9x8.7mm_P1.27mm | U8, U9 |
| 2 | YAC512 | Package_SO:SOIC-16_4.55x10.3mm_P1.27mm | U6, U7 |
| 1 | 1uF | Capacitor_SMD:C_0603_1608Metric_Pad1.05x0.95mm_HandSolder | C3 |
| 1 | 74HC14 | Package_SO:SOIC-14_3.9x8.7mm_P1.27mm | U2 |
| 1 | 74HCT595 | Package_SO:SOIC-16W_5.3x10.2mm_P1.27mm | U3 |
| 1 | BluePill_STM32F103C | Package_DIP:DIP-40_W15.24mm_Socket | U4 |
| 1 | Conn_01x04_Male | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J8 |
| 1 | Conn_01x08_Female | Connector_PinHeader_2.54mm:PinHeader_1x08_P2.54mm_Vertical | J14 |
| 1 | Conn_01x11_Female | Connector_PinSocket_2.54mm:PinSocket_1x11_P2.54mm_Vertical | J9 |
| 1 | Conn_02x05_Eurorack | Connector_PinHeader_2.54mm:PinHeader_2x05_P2.54mm_Vertical | J1 |
| 1 | Gate0 | Connector_Audio:Jack_3.5mm_QingPu_WQP-PJ398SM_Vertical_CircularHoles_TS | J2 |
| 1 | Gate1 | Connector_Audio:Jack_3.5mm_QingPu_WQP-PJ398SM_Vertical_CircularHoles_TS | J3 |
| 1 | Gate2 | Connector_Audio:Jack_3.5mm_QingPu_WQP-PJ398SM_Vertical_CircularHoles_TS | J4 |
| 1 | Gate3 | Connector_Audio:Jack_3.5mm_QingPu_WQP-PJ398SM_Vertical_CircularHoles_TS | J5 |
| 1 | Gate4 | Connector_Audio:Jack_3.5mm_QingPu_WQP-PJ398SM_Vertical_CircularHoles_TS | J6 |
| 1 | Gate5 | Connector_Audio:Jack_3.5mm_QingPu_WQP-PJ398SM_Vertical_CircularHoles_TS | J7 |
| 1 | L78L05 | Package_TO_SOT_SMD:SOT-89-3_Handsoldering | U1 |
| 1 | Rotary_A | Rotary_Encoder:RotaryEncoder_Alps_EC11E-Switch_Vertical_H20mm | SW8 |
| 1 | Rotary_D | Rotary_Encoder:RotaryEncoder_Alps_EC11E-Switch_Vertical_H20mm | SW9 |
| 1 | Rotary_Freq | Rotary_Encoder:RotaryEncoder_Alps_EC11E-Switch_Vertical_H20mm | SW7 |
| 1 | Rotary_R | Rotary_Encoder:RotaryEncoder_Alps_EC11E-Switch_Vertical_H20mm | SW11 |
| 1 | Rotary_S | Rotary_Encoder:RotaryEncoder_Alps_EC11E-Switch_Vertical_H20mm | SW10 |
| 1 | YMF262 | Package_SO:SOIC-24W_7.5x15.4mm_P1.27mm | U5 |
Questions
What parts does the Backup1 use?
101 parts, built around the 74HC14, 74HCT595D and L78L05CZ. 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 Backup1 KiCad files?
From the vk2gpu/4op_drum_synth repository on GitHub, at the commit this page was made from: the board is hardware/backup1.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Backup1 design in my own project?
Its repository states no licence, so its author keeps all rights: ask vk2gpu before reusing the design.
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