Deniseadapter
About the Deniseadapter PCB
Deniseadapter is an open source PCB design by hoglet67, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 26.7 × 62.2 mm, with 16 components from 12 distinct parts.
Other key parts include the XC9572XL-VQFP44, 74LVC574 and TLV74333PDBVR. By type, the board carries 4 ICs, 4 capacitors, 1 jumper and 1 resistor.
It belongs with the retro computing designs in this gallery.
From the project
Bare-metal Raspberry Pi project that provides pixel-perfect sampling of Retro Computer RGB/YUV video and conversion to HDMI
The RGBtoHDMI interface converts the "digital" RGB video signal from the BBC Micro or Electron to HDMI compatible with most modern TV/Monitors. The interface comprises a Raspberry Pi Zero and a specially designed Hat containing a small CPLD. Custom firmware on the Raspberry Pi, in conjunction with the CPLD, is able to correctly sample each of the Beeb's video modes to give a pixel-perfect rendition.
Main components on the Deniseadapter
Deniseadapter bill of materials (BOM)
16 components, 12 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | XC9572XL-VQFP44 74LVC86 | TSSOP-14_4.4x5mm_P0.65mm | U1 |
| 2 | 74LVC574 | TSSOP-20_4.4x6.5mm_P0.65mm | U2, U3 |
| 1 | TLV74333PDBVR | SOT-23-5_HandSoldering | U4 |
| 1 | Conn_01x02 | PinHeader_1x02_P2.54mm_Horizontal | JButton1 |
| 2 | Conn_02x12_Counter_Clockwise | DIP-24_W15.24mm_Socket | JDenise1, JDenise2 |
| 2 | Conn_01x24 | PinHeader_1x24_P2.54mm_Vertical | JMainBoard1, JMainBoard2 |
| 1 | SOLDERJUMPER_2_BRIDGED Jumper_3_Bridged12 | PinHeader_1x03_P2.54mm_Horizontal | JP1 |
| 1 | Conn_02x20_Odd_Even | PinSocket_2x20_P2.54mm_Vertical | JRaspberryPiZero1 |
| 1 | 10UF 100nF | C_0603_1608Metric_Pad1.05x0.95mm_HandSolder | C1 |
| 2 | 100NF 100nF | C_0603_1608Metric_Pad1.05x0.95mm_HandSolder | C2, C3 |
| 1 | 100NF 1uF | C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C4 |
| 1 | 3k3 | R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R1 |
Deniseadapter design files
The KiCad project lives in the hoglet67/RGBtoHDMI repository on GitHub; these links point at the commit this page was built from.
Deniseadapter: common questions
How big is the Deniseadapter PCB?
The Deniseadapter measures 26.7 × 62.2 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Deniseadapter?
16 components, from 12 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 Deniseadapter design files?
From the hoglet67/RGBtoHDMI repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.
Can I use the Deniseadapter design in my own project?
Yes, under the terms of its GPL-3.0 license, which hoglet67 chose for the repository.
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