Summary of Demodulation Boards

Name	S/N	Rev.	LPF	Splitter	Amp. Imbalance [dB]	Phase difference [deg]	conversion efficiency [Vout/VPD]	Notes
AS11	121		SCLF-10.7	PSCQ-2-51W			I=0.19, Q=0.20	Sacrificed to create AS110
REFL11	021		SCLF-10.7	PSCQ-2-51W			I=4.74, Q=5.04	w/ amp board
POY11	119		SCLF-10.7	PSCQ-2-32			I=0.21, Q=0.18
POX11			SCLF-10.7	PSCQ-2-51W			I=0.17, Q=0.16
POP11			SCLF-10.7					$/!\$ does this exist ?
POP22	020		SCLF-21.4	PSCQ-2-32			I=0.30, Q=0.24
REFL33			SCLF-33+				I=0.42, Q=0.42
AS55	029		SCLF-65	PSCQ-2-51W			I=6.77, Q=6.77	w/ amp board
REFL55	118		SCLF-65	PQW-2-90			I=0.36, Q=0.35
POP55			SCLF-65+	-			I=6.57 Q=6.48	w/ amp board
AS110	formerly AS11		SXBP-100 (Sept2013)
POP110	120		SXBP-100 (Sept2013)	PSCQ-2-120			I=0.28, Q=0.27
REFL165			SCLF-190				I=0.34, Q=0.34
AS165			SCLF-190					$/!\$ does this exist ?
POP165			SCLF-190					$/!\$ does this exist ?

References

[1] Ordering Low pass filters 40m elog #4459 (Mar/2011)
[2] Low pass filters and the old name convention 40m elog #4511 (Apr/2011)
[3] Power splitter Upgrade 40m elog #4538 (Apr/2011)
[4] How to replace the splitter 40m elog #4554 (Apr/2011)
[5] Replacement of the splitters 40m elog #4698 (May/2011)
[6] Replacement of the splitters part II 40m elog #4714 (May/2011)
[7] I/Q imbalance tests 40m elog #4736 (May/2011)
[8] 1Y2 rack pictures Electronics/1Y2
[9] Circuit schematic LIGO D990511-x0
[10] Measurement of the coversion efficiencies 40m elog #6402 (Mar/2012)

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 38 as of 2012-03-13 07:50:00 → 
  Size: 3089
  Editor: KiwamuizumiATligoDOTorg
  Comment:
+   ← Revision 43 as of 2013-10-30 06:42:35 → ⇥
  Size: 3306
  Editor: JennedriggersATligoDOTorg
  Comment:
-Deletions are marked like this.
+Additions are marked like this.
 Line 6:
- || AS11 	 || 121 || || SCLF-10.7 || PSCQ-2-51W     || || ||I=0.19, Q=0.20  || ||
+ || --(AS11)-- 	 || 121 || || SCLF-10.7 || PSCQ-2-51W     || || ||I=0.19, Q=0.20  || Sacrificed to create AS110 ||
 Line 10:
- || POP11       ||      || || SCLF-10.7 ||        || || || || does this exist ?||
+ || POP11       ||      || || SCLF-10.7 ||        || || || || /!\ does this exist ?||
 Line 16:
- || POP110 	|| 120 	|| || SCLF-135  || PSCQ-2-120 	|| || || I=0.28, Q=0.27|| ||
+ || AS110       ||  formerly AS11 || || SXBP-100 (Sept2013) ||          || || || || ||
 || POP110 	|| 120 	|| || SXBP-100 (Sept2013) || PSCQ-2-120 	|| || || I=0.28, Q=0.27|| ||
-Line 18:
+Line 19:
- || AS165       ||      || || SCLF-190  ||      || || || || || does this exist ?||
 || POP165      ||      || || SCLF-190  ||      || || || || does this exist ? ||
+ || AS165       ||      || || SCLF-190  ||      || || || || /!\ does this exist ?||
 || POP165      ||      || || SCLF-190  ||      || || || || /!\ does this exist ? ||
-Line 22:
+Line 23:
-  . [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]]
+  . [1]  Ordering Low pass filters [[http://nodus.ligo.caltech.edu:8080/40m/4459|40m elog #4459]] (Mar/2011)
  . [2]  Low pass filters and the old name convention [[http://nodus.ligo.caltech.edu:8080/40m/4511|40m elog #4511]] (Apr/2011)
  . [3] Power splitter Upgrade [[http://nodus.ligo.caltech.edu:8080/40m/4538|40m elog #4538]] (Apr/2011)
  . [4] How to replace the splitter [[http://nodus.ligo.caltech.edu:8080/40m/4554|40m elog #4554]] (Apr/2011)
  . [5] Replacement of the splitters [[http://nodus.ligo.caltech.edu:8080/40m/4698|40m elog #4698]] (May/2011)
  . [6] Replacement of the splitters part II [[http://nodus.ligo.caltech.edu:8080/40m/4714|40m elog #4714]] (May/2011)
  . [7] I/Q imbalance tests [[http://nodus.ligo.caltech.edu:8080/40m/4736|40m elog #4736]] (May/2011)

Summary of Demodulation Boards

References

Board Arrangement on 1Y2 Rack

Diagram needs to be updated !

Upgrading of Demodulation Boards

Links