Conditioning
QSUM-UNB·Frequency-Offset-Lock·Conditioning/hardware/Conditioning.kicad_pcb
About the Conditioning PCB
Conditioning is an open source PCB design by QSUM-UNB, published on GitHub. It is a 4-layer board measuring 30 × 30 mm, with 20 components from 10 distinct parts.
Other key parts include the Sig Cond. By type, the board carries 8 resistors, 4 connectors, 4 capacitors, 2 inductors and 1 IC.
From the project
PCB designs for a standalone optical frequency-offset locking system.
- © 2026 by K. Shalaby, P. Trottier, T. Reuschel, and B. Barrett - PCB designs licensed under CC BY-NC-SA 4.0
- This repository contains the PCB designs for a standalone optical frequency-offset locking system. All PCB designs were developed in KiCAD. - Files for each circuit component (or tile) are organized into the directory structure described below. - Details about the locking system and its performance can be found in our publication: - K. Shalaby et al, Standalone optical frequency-offset locking electronics for atomic physics, Rev. Sci. Instrum. 97, 033004 (2026). Pre-print…

Main components on the Conditioning
Conditioning bill of materials (BOM)
20 components, 10 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | Sig Cond | SO-14_3.9x8.65mm_P1.27mm | U1 |
| 1 | Input Power | Molex_KK-254_AE-6410-03A_1x03_P2.54mm_Vertical | J1 |
| 2 | 142-1701-626 | SMA-Edge-Generic | J3, J4 |
| 1 | 22-?-0327-2031 | PinHeader_1x02_P2.54mm_Vertical | P1 |
| 1 | 20K 20k | Potentiometer_Bourns_3266Y_Vertical | RV2 |
| 2 | FerriteBead | L_0805_2012Metric_Pad1.15x1.40mm_HandSolder | FB1, FB2 |
| 2 | 10NF 10nF | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C1, C3 |
| 2 | 1UF 1uF | C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C5, C6 |
| 4 | 10K 10k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R1, R2, R3, R4 |
| 4 | 0 | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R5, R6, R7, R8 |
Conditioning design files
The KiCad project lives in the QSUM-UNB/Frequency-Offset-Lock repository on GitHub; these links point at the commit this page was built from.
Conditioning: common questions
How big is the Conditioning PCB?
The Conditioning measures 30 × 30 mm, has 4 copper layers and is 1.6 mm thick.
How many components are on the Conditioning?
20 components, from 10 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 Conditioning design files?
From the QSUM-UNB/Frequency-Offset-Lock 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 Conditioning design in my own project?
The repository has no license, so all rights stay with QSUM-UNB. Use it as a reference, and ask the author before reusing the design.
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