Backporch
About the Backporch PCB
Backporch is an open source PCB design by semi-simple, published on GitHub under the Apache-2.0 license. It is a 2-layer board measuring 53.3 × 32.4 mm, with 25 components from 10 distinct parts.
Other key parts include the EL1883ISZ. By type, the board carries 11 capacitors, 9 resistors, 4 connectors and 1 IC.
It belongs with the retro computing and audio designs in this gallery.
From the project
Classic gaming consoles to SCART/PVM/OSSC/RetroTINK adapter
Backporch is a board to connect many classic gaming consoles with widely available and easily made cables with no components inside. Backporch can then be connected to PVMs (via HD15), Extron matrices, SCART TVs or OSSC / RetroTINK devices.
PVMs and Extron matrices can be connected with a simple VGA to BNC or VGA to VGA cable. SCART TVs can be connected with a component-free Mini-DIN 8 to SCART cable.
Main components on the Backporch
Backporch bill of materials (BOM)
25 components, 10 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | EL1883ISZ | SOIC127P600X175-8N | U1 |
| 1 | MD-90SM | CUI_MD-90SM | J1 |
| 1 | MD-80SM | CUI_MD-80SM | J2 |
| 1 | DB15_FEMALE_HIGHDENSITY_MOUNTINGHOLES DB15_Female_HighDensity_MountingHoles | VGA_CONN | J3 |
| 1 | 35RAPC4BH3 | SWITCHCRAFT_35RAPC4BH3 | J4 |
| 7 | 0.1UF 0.1uF | C_1206_3216Metric_Pad1.42x1.75mm_HandSolder | C1, C2, C3, C5, C7, C9, C11 |
| 4 | 330UF 330uF | CP_Radial_D6.3mm_P2.50mm | C4, C6, C8, C10 |
| 7 | 75R | R_1206_3216Metric_Pad1.42x1.75mm_HandSolder | R1, R3, R4, R5, R6, R8, R9 |
| 1 | 681KR 681kR | R_1206_3216Metric_Pad1.42x1.75mm_HandSolder | R2 |
| 1 | 470R | R_1206_3216Metric_Pad1.42x1.75mm_HandSolder | R7 |
Backporch design files
The KiCad project lives in the semi-simple/backporch repository on GitHub; these links point at the commit this page was built from.
Backporch: common questions
How big is the Backporch PCB?
The Backporch measures 53.3 × 32.4 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Backporch?
25 components, from 10 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the Backporch design files?
From the semi-simple/backporch repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.
Can I use the Backporch design in my own project?
Yes, under the terms of its Apache-2.0 license, which semi-simple chose for the repository.
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