CVBS2HDMI
About the CVBS2HDMI PCB
CVBS2HDMI is an open source PCB design by otanl, published on GitHub under the MIT license. It is a 2-layer board measuring 65.1 × 36.2 mm, with 49 components from 20 distinct parts.
Other key parts include the AD9280ARS and TANG_NANO_20K. By type, the board carries 19 resistors, 13 capacitors, 7 test points, 5 connectors, 2 ICs and 2 inductors.
From the project
CVBS2HDMI: composite NTSC to HDMI on a Tang Nano 20K, decoded in the FPGA (AD9280 ADC, open-source toolchain)
CVBS2HDMI digitises composite NTSC video (CVBS) with an 8-bit ADC (AD9280), decodes it in colour on the Tang Nano 20K's FPGA, and sends it to the on-board HDMI connector as 640×480p. There is no frame buffer. Everything is built with an open-source toolchain (Yosys / nextpnr-himbaechel / Apicula / openFPGALoader / Icarus Verilog); development was done on macOS.
Main components on the CVBS2HDMI
CVBS2HDMI bill of materials (BOM)
49 components, 20 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | AD9280ARS | SSOP-28_5.3x10.2mm_P0.65mm | U1 |
| 1 | TANG_NANO_20K Tang_Nano_20K | DIP-40_TangNano20K | U2 |
| 1 | screw | Altech_AK100_1x02_P5.00mm | J1 |
| 1 | CONN_01X12_PIN Conn_01x12_Pin | PinHeader_2x06_P2.54mm_Vertical | J2 |
| 1 | RJ-2410N | RJ2410N | J3 |
| 2 | CONN_01X04_PIN Conn_01x04_Pin | NS-Tech_Grove_1x04_P2mm_Vertical | J4, J5 |
| 7 | TestPoint | TestPoint_THTPad_D1.0mm_Drill0.5mm | TP1, TP2, TP3, TP4, TP5, TP6, TP7 |
| 1 | H5VL10B | D_SOD-882 | D1 |
| 2 | C1017 600R@100MHz | L_0805_2012Metric | FB1, FB2 |
| 7 | 0.1U 0.1u | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C1, C4, C6, C8, C10, C11, C12 |
| 1 | 1u | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C2 |
| 3 | 10U 10u | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C3, C5, C9 |
| 1 | 1u | CP_EIA-3216-10_Kemet-I_HandSolder | C7 |
| 1 | 100P 100p | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C13 |
| 1 | 75 | R_0603_1608Metric | R1 |
| 4 | 10K 10k | R_0603_1608Metric | R2, R4, R14, R17 |
| 10 | 20 | R_0603_1608Metric | R3, R5, R6, R7, R8, R9, R10, R11 +2 |
| 1 | 33 | R_0603_1608Metric | R13 |
| 2 | 4.7K 4.7k | R_0603_1608Metric | R15, R16 |
| 1 | 47K 47k | R_0603_1608Metric | R19 |
CVBS2HDMI design files
The KiCad project lives in the otanl/CVBS2HDMI repository on GitHub; these links point at the commit this page was built from.
CVBS2HDMI: common questions
How big is the CVBS2HDMI PCB?
The CVBS2HDMI measures 65.1 × 36.2 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the CVBS2HDMI?
49 components, from 20 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 CVBS2HDMI design files?
From the otanl/CVBS2HDMI repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the CVBS2HDMI design in my own project?
Yes, under the terms of its MIT license, which otanl chose for the repository.