OMC DCPD Split ISC Whitening Filter Interface Board (O3 and before)

Document #:

LIGO-D1300520-v3

Document type:

D - Drawings

Abstract:

A circuit board that is designed specifically to get the OMC DCPDs into the front of an existing whitening chassis.

Files in Document:

• PDF of schematic and layout (WhiteningInterfaceSplit_v3.pdf, file is not accessible)

Other Files:

• Altium Project Files (zipped) (WhiteningInterfaceSplit_v3 (8-29-2016 5-03-19 PM).zip, file is not accessible)
• ODB++ File (WhiteningInterfaceSplitODB_v1.zip, file is not accessible)
• Parts Bill of Materials in Excel format (WhiteningInterfaceSplitBOM_v2.xlsx, file is not accessible)
• Zipped Gerber Files for manufacture (WhiteningInterfaceSplit_v2.zip, file is not accessible)

ICS/JIRA Record:

• ICS_LINK

Topics:

• Final Design
• Sensing and Control

Authors:

• Rich Abbott

Keywords:

OMC Whitening

Notes and Changes:

Version 3 - ECR E1600192 - AC coupling of signals for PI mode visibility
1. Remove R7, R8, R9, R10, R17, R18
2. On the back side of the circuit board, use hot glue to affix a 220pF leaded plastic film capacitor (399-7684-ND) each
between J4 pins 1, 14, 5, 18 to J3 pins 3, 11, 4, 12 respectively using jumper wire as needed.
3. Version 2 PCB is still current

Related Documents:

• LIGO-D1001530: aLIGO ISC Whitening Board
• LIGO-E1600061: ECR - Reduction of Bias Voltage Noise in OMC DCPDs
• LIGO-E1600192: PI Readbacks for OMC DCPDs

Referenced by:

• LIGO-T1300603-v2: Split Whitening Board Driver Test Procedure
• LIGO-E1600061-v1: ECR - Reduction of Bias Voltage Noise in OMC DCPDs
• LIGO-E1600278: DCN - Changes to ISC Split-Whitening Amplifier Interface Board
• LIGO-E1300896: aLIGO, ISC, OMC, Design, Electrical
• LIGO-E1300521: aLIGO, ISC, OMC, Electrical Components
• LIGO-D1002559-v3: ISC Whitening Chassis Assembly