Cardshark
About the Cardshark PCB
Cardshark is an open source PCB design by slobworks, published on GitHub under the MIT license. It is a 4-layer board measuring 237 × 70.5 mm, with 75 components from 32 distinct parts.
Other key parts include the 27C256, GD543x_VLB, SOJ_256Kx16, TL431DBZ and KA78M05_TO252. By type, the board carries 34 capacitors, 17 resistors, 11 ICs, 6 inductors, 3 connectors and 2 jumpers.
It belongs with the retro computing designs in this gallery.
From the project
Open source Cirrus Alpine VLB video card
CARDSHARK Tiburon v1.1 - MIT-Licensed, Open-Source Cirrus Logic CL-GD543x Based VLB VGA Card
As it says on the package. This VGA card for the VESA Local Bus supports a maximum memory size of 2MB, using traditional multiple-CAS FPM 256Kx16 SOJ memory. 70ns or faster memory is recommended, as is a CL-GD5434 chip for the fastest speed and least confusing build. Created using KiCAD 8.0, updated for 10.0 (a thousand apologies if this breaks your older version!)
Main components on the Cardshark
Cardshark bill of materials (BOM)
75 components, 32 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 27C256 | DIP-28_W15.24mm_Socket | U1 |
| 1 | GD543x_VLB | PQFP-208_28x28mm_P0.5mm | U2 |
| 4 | SOJ_256Kx16 | SOJ-40_10.16x26.44mm_P1.27mm | U3, U7, U12, U13 |
| 1 | TL431DBZ | SOT-23 | U4 |
| 1 | KA78M05_TO252 | TO-252-2 | U5 |
| 1 | SN74LS245DBR | SSOP-20_5.3x7.2mm_P0.65mm | U6 |
| 1 | VLB | VLB | U8 |
| 1 | SN74F260DR | SOIC-14_3.9x8.7mm_P1.27mm | U10 |
| 1 | MMBT3904 | SOT-23 | Q1 |
| 1 | CXO_DIP14 | Oscillator_SMD_DIP-14 | Y1 |
| 1 | Conn_02x03_Odd_Even | PinHeader_2x03_P1.27mm_Vertical_SMD | J1 |
| 1 | Bus_ISA_8bit | ISA | J2 |
| 1 | DE15_Receptacle_HighDensity_MountingHoles | DSUB-15-HD | J3 |
| 1 | IRQ | PinHeader_1x02_P2.54mm_Vertical | JP1 |
| 1 | VLB_TIMING | PinHeader_1x02_P2.54mm_Vertical | JP2 |
| 3 | 0805 | L_0805_2012Metric | FB1, FB2, FB3 |
| 3 | 1210 | L_0805_2012Metric | FB4, FB5, FB6 |
| 6 | 10u | C_0805_2012Metric | C1, C2, C3, C5, C6, C7 |
| 20 | 0.1u | C_0805_2012Metric | C4, C8, C9, C13, C14, C18, C19, C21 +12 |
| 1 | 22u | CP_Elec_5x5.9 | C11 |
Show 12 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 4 | 2.2u | C_0805_2012Metric | C16, C17, C34, C35 |
| 3 | 10p | C_0805_2012Metric | C30, C31, C32 |
| 3 | 10 | R_0603_1608Metric | R1, R2, R6 |
| 3 | 6.8K | R_0603_1608Metric | R3, R29, R30 |
| 1 | 270-300 | R_0805_2012Metric | R5 |
| 2 | 1K | R_0805_2012Metric | R9, R10 |
| 1 | 100 | R_0805_2012Metric | R19 |
| 2 | 75 | R_0805_2012Metric | R26, R27 |
| 1 | 0 | R_0805_2012Metric | R28 |
| 2 | 6.8K | ResArray_Convex_4x0603 | RN2, RN4 |
| 1 | 75 | ResArray_Convex_4x0603 | RN3 |
| 1 | 33 | ResArray_Convex_4x0603 | RN5 |
Cardshark design files
The KiCad project lives in the slobworks/cardshark repository on GitHub; these links point at the commit this page was built from.
- Layoutcardshark.kicad_pcb
- Schematiccardshark.kicad_sch
Cardshark: common questions
How big is the Cardshark PCB?
The Cardshark measures 237 × 70.5 mm, has 4 copper layers and is 1.6 mm thick.
How many components are on the Cardshark?
75 components, from 32 distinct parts. The full bill of materials is listed on this page.
Where can I download the Cardshark design files?
From the slobworks/cardshark repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Cardshark design in my own project?
Yes, under the terms of its MIT license, which slobworks chose for the repository.
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