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Message ID: 11403     Entry time: Mon Jul 13 14:08:10 2015
Author: ericq 
Type: Update 
Category: Electronics 
Subject: New RF amps, housed 

I made a little box for the new RF amplifiers we'll be using for the green beatnotes, to keep things tidy on the PSL table. They are both Minicircuits model ZHL-3A-S.

I took TFs of their response with the agilient analyzer (calibrating out the cables, splitters, etc.) Powered at +24V, we get a solid ~27dB of gain up to around 200MHz, which is fine for our needs. The phase profile is mostly a 6-7 nsec delay, which is negligible for ALS. Data files are attached. 

Koji looked at me like I was crazy for using a BNC connector for the DC power. I haven't yet been able to find panel mount banana connectors, but when I do, I'll replace it. 


Attachment 1: ampBox.jpg  172 kB  | Hide | Hide all
Attachment 2: ampTFs.png  154 kB  | Hide | Hide all
Attachment 3: ampTFs.zip  27 kB
Attachment 4: ampBox2.jpg  147 kB  Uploaded Mon Jul 13 21:15:24 2015  | Hide | Hide all
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