2 layers20 × 12 mm
Clockgen cx jig
GDH-Technologies/cx-clockgen
Essentially a fork of Rene Wolf's `cxadc-clock-generator-audio-adc` gitlab project
11 parts1
2 layers70 × 64.5 mm
Clockgen main board
GDH-Technologies/cx-clockgen1Essentially a fork of Rene Wolf's `cxadc-clock-generator-audio-adc` gitlab project
- Size
- 70 × 64.5 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 17
- Nets
- 67
- Pads
- 140
- Tracks, vias
- 100, 1
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 28 Apr 2026
- Updated
- 12 Jun 2026
Overview
Clockgen main board is an open-source printed circuit board by GDH-Technologies, from the GDH-Technologies/cx-clockgen repository on GitHub. It is a 2-layer board of 70 × 64.5 mm with 17 parts on 67 nets, routed with 100 tracks and 1 via.
It is built around the PCM1802DB, RFPC-SMA28-F and SI5351A-B-GT. Its parts include 4 connectors, 2 diodes, 1 capacitor and 1 resistor. It belongs with the RP2040 boards of this library.
Main components
3
PCM1802DB
SSOP-20-40℃~+85℃ 2 24 3.3V、5V 96000Hz Audio Analog-to-Digital Converter Built-in I2S SSOP-20 ADCs/DACs - Special Purpose ROHSTexas InstrumentsADCs/DACs - Special Purpose
RFPC-SMA28-F
Through holeThroughhole New Arrivals ROHSGradConnUncategorised
SI5351A-B-GT
MSOP-10-40℃~+85℃ 1.71V~3.6V 200MHz 3 I2C MSOP-10 Clock Generators, PLLs, Frequency Synthesizers ROHSSilicon LabsClock Generators, PLLs, Frequency Synthesizers
README
README.mdcx-clockgen
Essentially a fork of Rene Wolf's cxadc-clock-generator-audio-adc gitlab project
Parts
17| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | MountingHole_Pad | MountingHole:MountingHole_3.2mm_M3_ISO14580_Pad | H1, H2, H3, H4 |
| 1 | 10u | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C1 |
| 1 | 1k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1 |
| 1 | Board | PCM_kikit:Board | ${board-ref}** |
| 1 | CLK0_SMA | GDH Connectors:GRADCONN_RFPC-SMA28-F | J1 |
| 1 | CLK1_SMA | GDH Connectors:GRADCONN_RFPC-SMA28-F | J2 |
| 1 | D | Diode_SMD:D_SOD-123 | D1 |
| 1 | D_Zener | Diode_SMD:D_SOD-123 | D2 |
| 1 | Headswitch_BNC | GDH Connectors:Molex_0731000154_BNC_RA_THT | J4 |
| 1 | Headswitch_SMA | GDH Connectors:GRADCONN_RFPC-SMA28-F | J3 |
| 1 | LOGO | GDH Graphics:16mm Straight GDH Wordmark | G*** |
| 1 | PCM1802 | GDH Modules:black-pcm1802-board | A3 |
| 1 | Pico | GDH Modules:Pi_Pico_SMD_TH | A1 |
| 1 | Si5351A | GDH Modules:Adafruit_Si5351A_Breakout_Board | A2 |
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Questions
How big is the Clockgen main board PCB?
It measures 70 × 64.5 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Clockgen main board use?
17 parts, built around the PCM1802DB, RFPC-SMA28-F and SI5351A-B-GT. 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 Clockgen main board KiCad files?
From the GDH-Technologies/cx-clockgen repository on GitHub, at the commit this page was made from: the board is kicad-clockgen-main-board/clockgen-main-board.kicad_pcb and its schematic kicad-clockgen-main-board/clockgen-main-board.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Clockgen main board design in my own project?
Its repository states no licence, so its author keeps all rights: ask GDH-Technologies before reusing the design.