Summary of Demodulation Boards

Name	S/N	Rev.	LPF	Splitter	Amp. Imbalance [dB]	Phase difference [deg]	Notes
AS11	121		SCLF-10.7	PSCQ-2-51W			w/ amp board
REFL11	021		SCLF-10.7	PSCQ-2-51W
POY11	119		SCLF-10.7	PSCQ-2-32
POX11			SCLF-10.7	PSCQ-2-51W
POP11			SCLF-10.7
POP22	020		SCLF-21.4	PSCQ-2-32
REFL33			SCLF-33+
AS55	029		SCLF-65	PSCQ-2-51W
REFL55	118		SCLF-65	PQW-2-90
POP55			SCLF-65+	-			w/ amp board
POP110	120		SCLF-135	PSCQ-2-120
REFL165			SCLF-190
AS165			SCLF-190
POP165			SCLF-190

References

[1] Ordering Low pass filters 40m elog #4459
[2] Low pass filters and the old name convention 40m elog #4511
[3] Power splitter Upgrade 40m elog #4538
[4] How to replace the splitter 40m elog #4554
[5] Replacement of the splitters 40m elog #4698
[6] Replacement of the splitters part II 40m elog #4714
[7] I/Q imbalance tests 40m elog #4736
[8] 1Y2 rack pictures Electronics/1Y2
[9] Circuit schematic LIGO D990511-x0

Board Arrangement on 1Y2 Rack

Diagram needs to be updated !

The latest version is available on the 40m svn:
https://nodus.ligo.caltech.edu:30889/svn/trunk/suresh/40m_RF_upgrade/1Y2%20Rack%20Layout.pdf

Upgrading of Demodulation Boards

We are currently at the intermediate state

-  ⇤ ← Revision 7 as of 2011-11-04 10:33:10 → 
  Size: 701
  Editor: KiwamuIzumi
  Comment:
+   ← Revision 34 as of 2012-02-28 02:52:15 → ⇥
  Size: 2646
  Editor: KiwamuizumiATligoDOTorg
  Comment:
-Deletions are marked like this.
+Additions are marked like this.
 Line 1:
-= LSC demodulation board =
+<<TableOfContents(2)>>
 Line 3:
- ||  ''''' Name ''''' || ''''' S/N '''''||''''' Rev.''''' ||''''' LPF ''''' || ''''' Splitter'''''||''''' Notes''''' ||
 || AS11 	 || 121 || || || PSCQ-2-51W ||	||
 || REFL11 	|| 021 	|| || || PSCQ-2-51W 	|| ||
 || POY11 	|| 119 	|| || || PSCQ-2-32 	|| ||
 || POX11       ||      || || || PSCQ-2-51W        || ||
 || AS55 	|| 029 	|| || || PSCQ-2-51W 	|| ||
 || REFL55 	|| 118 	|| || || PQW-2-90 	        || ||
 || POP55       ||      || || || -                 || ||
 || POP22 	|| 020 	|| || || PSCQ-2-32 	|| ||
 || POP110 	|| 120 	|| || || PSCQ--120 	|| ||
+= Summary of Demodulation Boards =
-Line 14:
+Line 5:
-= 2-Step Upgrading =
We are currently at the intermediate state.
+ ||  ''''' Name ''''' || ''''' S/N '''''||''''' Rev.''''' ||''''' LPF ''''' || ''''' Splitter'''''||''''' Amp. Imbalance [dB]''''' ||''''' Phase difference [deg] ''''' ||''''' Notes''''' ||
 || AS11 	 || 121 || || SCLF-10.7 || PSCQ-2-51W     || || || w/ amp board ||
 || REFL11 	|| 021 	|| || SCLF-10.7 || PSCQ-2-51W 	|| || || ||
 || POY11 	|| 119 	|| || SCLF-10.7 || PSCQ-2-32 	|| || || ||
 || POX11       ||      || || SCLF-10.7 || PSCQ-2-51W     || || || ||
 || POP11       ||      || || SCLF-10.7 ||        || || || ||
 || POP22 	|| 020 	|| || SCLF-21.4 || PSCQ-2-32 	|| || || ||
 || REFL33      ||      || || SCLF-33+  ||                || || || ||
 || AS55 	|| 029 	|| || SCLF-65   || PSCQ-2-51W 	|| || || ||
 || REFL55 	|| 118 	|| || SCLF-65   || PQW-2-90 	|| || || ||
 || POP55       ||      || || SCLF-65+  || -              || || || w/ amp board ||
 || POP110 	|| 120 	|| || SCLF-135  || PSCQ-2-120 	|| || || ||
 || REFL165     ||      || || SCLF-190  ||                || || || ||
 || AS165       ||      || || SCLF-190  ||      || || || ||
 || POP165      ||      || || SCLF-190  ||      || || || ||
-Line 17:
+Line 21:
- attachment:upgrade_demod.png
+== References ==
  . [1]  Ordering Low pass filters [[http://nodus.ligo.caltech.edu:8080/40m/4459|40m elog #4459]]
  . [2]  Low pass filters and the old name convention [[http://nodus.ligo.caltech.edu:8080/40m/4511|40m elog #4511]]
  . [3] Power splitter Upgrade [[http://nodus.ligo.caltech.edu:8080/40m/4538|40m elog #4538]]
  . [4] How to replace the splitter [[http://nodus.ligo.caltech.edu:8080/40m/4554|40m elog #4554]]
  . [5] Replacement of the splitters [[http://nodus.ligo.caltech.edu:8080/40m/4698|40m elog #4698]]
  . [6] Replacement of the splitters part II [[http://nodus.ligo.caltech.edu:8080/40m/4714|40m elog #4714]]
  . [7] I/Q imbalance tests [[http://nodus.ligo.caltech.edu:8080/40m/4736|40m elog #4736]]
  . [8] 1Y2 rack pictures [[Electronics/1Y2]]
  . [9] Circuit schematic [[https://dcc.ligo.org/cgi-bin/DocDB/ShowDocument?docid=20605 | LIGO D990511-x0 ]]
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<<BR>>
<<BR>>


= Board Arrangement on 1Y2 Rack =
== Diagram needs to be updated ! ==
 . The latest version is available on the 40m svn:
 . [[https://nodus.ligo.caltech.edu:30889/svn/trunk/suresh/40m_RF_upgrade/1Y2%20Rack%20Layout.pdf]]

 {{attachment:1Y2_demod.png}}

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<<BR>>
<<BR>>

= Upgrading of Demodulation Boards =
''' We are currently at the intermediate state '''

 {{attachment:upgrade_demod.png}}

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<<BR>>
<<BR>>

= Links =
 . [[ Electronics/WhiteningFilters | Whitening filters for the LSC demod signals]]