2 layers245.1 × 160 mm
8-Bit CPU 32k
slu4coder/Minimal-64x4-Home-Computer
My DIY TTL home computer with VGA and PS/2 and 4x the processing power of a Commodore C64 or Apple II.
139 parts326
2 layers67 × 77 mm
CGA2Scart
profdc9/CGA2Scart6A PCB for a CGA To SCART adapter
- Size
- 67 × 77 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 44
- Nets
- 56
- Pads
- 153
- Tracks, vias
- 345, 2
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 6 (file 20211014)
- Created
- 11 Sep 2022
- Updated
- 22 Dec 2022
Overview
CGA2Scart is an open-source printed circuit board by profdc9, from the profdc9/CGA2Scart repository on GitHub. It is a 2-layer board of 67 × 77 mm with 44 parts on 56 nets, routed with 345 tracks and 2 vias.
It is built around the 74HC86D. Its parts include 20 resistors, 5 capacitors, 5 connectors, 3 diodes and 2 ICs.
Main components
1README
README.mdCGA To SCART
This is a simple CGA to SCART, with an experimental EGA mode to support 640x200 64 color EGA mode. 640x350 mode is not going to work.
Parts
44| Qty | Value | Footprint | References |
|---|---|---|---|
| 5 | 330R | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R3, R4, R5, R18, R19 |
| 3 | 100R | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R15, R16, R17 |
| 3 | 1N4148 | Diode_THT:D_DO-35_SOD27_P7.62mm_Horizontal | D1, D2, D3 |
| 3 | 470R | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R6, R7, R8 |
| 3 | NC | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R11, R12, R13 |
| 2 | 1 uF | Capacitor_THT:CP_Radial_D5.0mm_P2.00mm | C1, C3 |
| 2 | 10 uF | Capacitor_THT:CP_Radial_D5.0mm_P2.00mm | C2, C4 |
| 2 | 10k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R1, R9 |
| 2 | 220R | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R20, R21 |
| 2 | IN | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | JP3, JP4 |
| 1 | 100 nF | Capacitor_THT:C_Disc_D5.0mm_W2.5mm_P5.00mm | C5 |
| 1 | 1k5 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R22 |
| 1 | 68R | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R2 |
| 1 | 74HC86 | Package_DIP:DIP-14_W7.62mm_Socket | U1 |
| 1 | Audio-Jack-3_2Switches | CGA2SCart:PJ-3240-35mm-stereo | J3 |
| 1 | Barrel_Jack_Switch | Connector_BarrelJack:BarrelJack_Horizontal | J5 |
| 1 | COMPS | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | JP9 |
| 1 | DB15_Female_HighDensity | Connector_Dsub:DSUB-15-HD_Female_Horizontal_P2.29x1.98mm_EdgePinOffset3.03mm_Housed_MountingHolesOffset4.94mm | J4 |
| 1 | DB9_Male | Connector_Dsub:DSUB-9_Male_Horizontal_P2.77x2.84mm_EdgePinOffset4.94mm_Housed_MountingHolesOffset7.48mm | J2 |
| 1 | EGABLUE | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | JP5 |
| 1 | EGAGREEN | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | JP7 |
| 1 | EGARED | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | JP6 |
| 1 | HSYNC/CSYNC | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | JP1 |
| 1 | INTENS | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | JP2 |
| 1 | LM7805_TO220 | Package_TO_SOT_THT:TO-220-3_Vertical | U2 |
| 1 | POLARITY | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | JP8 |
| 1 | SCART-F | CGA2SCart:SCART | J1 |
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Questions
How big is the CGA2Scart PCB?
It measures 67 × 77 mm and has 2 copper layers, 1.6 mm thick.
What parts does the CGA2Scart use?
44 parts, built around the 74HC86D. 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 CGA2Scart KiCad files?
From the profdc9/CGA2Scart repository on GitHub, at the commit this page was made from: the board is CGA2SCart.kicad_pcb and its schematic CGA2SCart.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the CGA2Scart design in my own project?
Its repository states no licence, so its author keeps all rights: ask profdc9 before reusing the design.