aLIGO ASC RF Photodetector

Document #:

LIGO-D1101614-v3

Document type:

D - Drawings

Abstract:

General purpose low noise RF photodetector circuit board for ISC alignment sensing.

Files in Document:

• PDF of Schematic and Layout (aLIGO_wfs_v3.pdf, 913.5 kB)

Other Files:

• Altium Project Files (zipped) (aLIGO_wfs_v3 (8-28-2013 10-31-50 AM).zip, 2.4 MB)
• Bill of materials in Excel Format (aLIGO_wfs_BOM_v3.xlsx, 13.4 kB)
• Zipped ODB++ Files (aLIGO_wfs_odb.zip, 406.9 kB)
• zipped Gerber Files for Board Manufacture (aLIGO_wfs_gerber_v3.zip, 142.2 kB)

ICS/JIRA Record:

• d1101614

Topics:

• Final Design
• Sensing and Control

Authors:

• Rich Abbott

Keywords:

photodetector asc wfs rfpd

Notes and Changes:

Version 3 is the version that should be ordered for any new boards. This version has a clean bill of materials, and has power protection features added to prevent failure upon loss of a single power rail.

Flipped the reference designators for ease in reading. Also added some handy test holes near the detector to rest the tip of an RF probe during RF tuning.

Values shown on schematic are for 9/45 MHz operation. Consult T1300199 for component variations at other operating frequencies.