ELogs/Electronics

2025-09-01T15:24:58Z

AndrewRose:

Electronic Log for Electronics Development

== Oxford ==

[mailto:peter.hastings@physics.ox.ac.uk Pete Hastings]

[mailto:mark.jones@physics.ox.ac.uk Mark Jones]

=== Power supply board ===

'''Ready for experimental visit to Trento, 28th September 2025'''

* Power distribution board required for QuARC.
* Provide power for Raspberry Pi and DDC boards from single DC input:
** 5V/5A for Raspberry Pi via USB-C
** >7.5V (5A?) for DDC board daisy chain via 2.5mm barrel
* Single USB-C PD input: 20V/5A
** Needs USB-C PD voltage negotiation chip
* Fallback option with 20V DC 2.5mm barrel jack input
* LEDs to indicate each voltage is provided correctly:
** 20V input
** 5V to Raspberry Pi
** >7.5V to DDC boards
* Should be able to switch off LEDs
* Necessary to switch between input power supplies?
* Ensure both power outputs stable: no drop-outs!
** Potential for USB-C PD to drop out when voltage renegotiated?

=== DDC Photodiode Board Rev.G ===

'''Upon completion of power distribution board'''

* Return Rev.F boards and ZMOD boards to be fixed: &check;
* Remove '''RESET''' connection from '''CC2''' pin on '''all''' DDC board USB-C connections
* Resize DDC board to accept [https://www.hamamatsu.com/jp/en/product/optical-sensors/photodiodes/si-photodiode-array/si-photodiode-array/S12362-021.html Hamamatsu S12362 16-element photodiode array] in place of [https://www.hamamatsu.com/jp/en/product/optical-sensors/photodiodes/si-photodiodes/S12915-16R.html Hamamatsu S12915-16R single photodiodes]
* Reduces pitch from 3mm to 2.5mm
* 2 photodiode arrays per DDC board (2 x 16 element arrays = 32 channels)

=== Scintillating Fibre Profile Monitor Front-end Boards ===

'''Upon completion of Rev.F board'''

* Integration of scintillating fibre profile monitor based on [https://indico.physi.uni-heidelberg.de/event/1125/ design from Blake Leverington, University of Heidelberg]
* Hamamatsu S17285 photodiode arrays to couple to scintillating fibres
* Interface board needed between USB-C connection from FPGA and photodiode arrays
* Acquire data; distribute timing signals

== Imperial ==

[mailto:andrew.rose01@imperial.ac.uk Andy Rose]

[mailto:duncan.parker@imperial.ac.uk Duncan Parker]

[mailto:m.saleh@imperial.ac.uk Munir Saleh]

=== QuADProBe FPGA Upgrade ===

* QuADProBe QAD to be upgraded from USB104+Raspberry Pi to Kria:
** [https://www.amd.com/en/products/system-on-modules/kria/k26.html AMD Kria K26 SoM]
** [https://docs.amd.com/r/en-US/ds987-k26-som/ Kria K26 SoM Data Sheet]
** [https://www.amd.com/en/products/system-on-modules/kria/k26/kv260-vision-starter-kit.html Kria KV260 AI Vision Starter Kit]
* Kria available off-the-shelf but carrier board needed
* Imperial to design carrier board with multiple I/O for QuADProBe:
** [https://imperiallondon-my.sharepoint.com/:f:/r/personal/awr01_ic_ac_uk/Documents/KriaDAQ Imperial One-drive folder for Kria DAQ Documents]
** [https://imperiallondon-my.sharepoint.com/:p:/r/personal/awr01_ic_ac_uk/Documents/KriaDAQ/QUARC%20evolution.pptx?d=w174b6813c4c74a809a787aaea406ed28 Evolution of QuARC Electronics (PPTX)]
** [https://imperiallondon-my.sharepoint.com/:w:/r/personal/awr01_ic_ac_uk/Documents/KriaDAQ/Specification.docx?d=w07d339959a8449428d3d68664ff5b519 SPECIFICATION DOCUMENT (DOCX)]

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