4 layers160 × 185.5 mm
4 layers61 × 23 mm
ClockV2 fp
Raphael-Tibbits/ClockV2Crystal oscilator clock project
- Size
- 61 × 23 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 17
- Nets
- 28
- Pads
- 76
- Tracks, vias
- 195, 11
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 27 Oct 2025
- Updated
- 25 Oct 2026
Overview
ClockV2 fp is an open-source printed circuit board by Raphael-Tibbits, from the Raphael-Tibbits/ClockV2 repository on GitHub. It is a 4-layer board of 61 × 23 mm with 17 parts on 28 nets, routed with 195 tracks and 11 vias.
It is built around the LTD-4608JR and TDCR1060M. Its parts include 7 resistors, 4 diodes, 3 connectors and 1 switch. It belongs with the lEDs and displays boards of this library.
Main components
2README
V2_0/README.mdClockV2
Crystal oscilator clock project
This project aims to create a 1s/year accurate clock, this is done with an ovenated crystal oscilator.
There are two versions of the hardware, one with a discrete XO, which can be trimmed; and the other with a TCXO module that cant be trimmed
The hardware is made to be IEEE1101.3 compliant form factor as a 3U x 160 deep eurocard that occoupies 4HP. Mechanical stuff like a front panel is in progress
Parts
17| Qty | Value | Footprint | References |
|---|---|---|---|
| 3 | 330R | Resistor_SMD:R_0805_2012Metric | R313, R314, R315 |
| 3 | RED | LED_SMD:LED_0805_2012Metric | D301, D302, D303 |
| 2 | 150 | Resistor_SMD:R_0805_2012Metric | R316, R317 |
| 1 | 1k | Resistor_SMD:R_0805_2012Metric | R312 |
| 1 | Conn_01x04 | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J301 |
| 1 | Conn_02x04_Odd_Even | Connector_PinHeader_2.54mm:PinHeader_2x04_P2.54mm_Vertical_SMD | J402 |
| 1 | Conn_02x06_Odd_Even | Connector_PinHeader_2.54mm:PinHeader_2x06_P2.54mm_Vertical_SMD | J403 |
| 1 | GRN | LED_SMD:LED_0805_2012Metric | D304 |
| 1 | LDR03 | OptoDevice:R_LDR_5.1x4.3mm_P3.4mm_Vertical | R309 |
| 1 | LTD-4608JR | LTD_4608JR:LTD-4608JR_LTO | DS401 |
| 1 | SW_Push | Button_Switch_THT:SW_PUSH_6mm_H4.3mm | SW301 |
| 1 | TDCR1060M | TDCR1060M:DISPLAY_TDCR1060M | DS402 |
Questions
How big is the ClockV2 fp PCB?
It measures 61 × 23 mm and has 4 copper layers, 1.6 mm thick.
What parts does the ClockV2 fp use?
17 parts, built around the LTD-4608JR and TDCR1060M. 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 ClockV2 fp KiCad files?
From the Raphael-Tibbits/ClockV2 repository on GitHub, at the commit this page was made from: the board is V2_0/ClockV2_fp.kicad_pcb and its schematic Clock_Panel/Clock_Panel.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the ClockV2 fp design in my own project?
Its repository states no licence, so its author keeps all rights: ask Raphael-Tibbits before reusing the design.
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