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<== Date ==> <== Thread ==>

Subject: RE: Digitizer needed for LCLS
From: "Mark Rivers" <[email protected]>
To: "Steve Lewis" <[email protected]>, <[email protected]>
Cc: "Elden Ables" <[email protected]>
Date: Mon, 1 May 2006 15:21:09 -0500
Hi Steve,
 
Joerger Enterprises makes a VME module which has a mother board and up to 4 daughter cards.  One version of the daughter card is 8 channels, 14 bits, 10MHz.  So you can do 32 channels on one VME board. 
 
http://www.joergerinc.com/VME.htm
 
Mark
 

________________________________

From: Steve Lewis [mailto:[email protected]]
Sent: Mon 5/1/2006 2:55 PM
To: [email protected]
Cc: Elden Ables
Subject: Digitizer needed for LCLS



EPICS colleagues:

The LLNL group that is supplying the diagnostics to commission the
LCLS needs a digitizer for an energy measurement instrument
(calorimeter) with the following characteristics:

  - 100 channels sampled simultaneously
  - each channel takes 100 samples at 10us per sample (1 ms total time)
  - differential inputs
  - 12 bits minimum; 14 or even 16 bits preferred
  - sampling repeats at 120 Hz major cycle with trigger

A VME or VXI format is ideal.

Any suggestions are most welcome.  Ideally, we can discuss this in
depth at the June meeting.

--
______________________________________________________________
Stephen A. Lewis                        |
Linac Coherent Light Source             | [email protected]
Lawrence Livermore National Laboratory  | Tel: 925.423.4751
7000 East Ave, L-210                    | FAX: 925.423.1488
Livermore, CA 94550                     | http://www.llnl.gov




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