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Subject: Re: Suggestions for trigger manager device
From: "Cobb, Tom \(DLSLtd,RAL,LSCI\) via Tech-talk" <[email protected]>
To: "[email protected]" <[email protected]>, Nilson Pereira <[email protected]>
Date: Thu, 21 Nov 2019 13:33:25 +0000
Hi,

What is the period, duration and allowable jitter on the input trigger signal?

The reason I ask is that the Zebra, PandA (https://quantumdetectors.com/n/products/pandabox/) and possibly softGlue register input signals using an internal clock (50MHz for Zebra, 125MHz for PandA). This means that a jitter of up to the clock period will be applied if the trigger source is not synchronous with the FPGA's clock source. This won't impact slow signals, but if you are trying to synchronize a laser with a bunch pattern then nanoseconds of jitter matter.

On the plus side, if you are looking at delays which are multiples of the FPGA clock period then Zebra, PandA and probably softGlue can also give you this functionality without needing the DG645...

Thanks,
Tom
From: Tech-talk <[email protected]> on behalf of Nilson Pereira via Tech-talk <[email protected]>
Sent: 21 November 2019 10:20
To: [email protected] <[email protected]>
Subject: Suggestions for trigger manager device
 
Hi there.

I am looking for some suggestions for a device that would let me
(through epics) choose between different sources of pulse triggers.

In our beamline, we have a delay generator (DG645) from SRS to
synchronize multiple devices during acquisition with 1 input and 4
outputs. Since we have different devices that act as trigger source on
different experiments, our solution now is to change cables that
connects to our single input of the delay generator.

Is there a device with EPICS support that would allow me to manage this
triggering source?

Thank you.

Nilson Pereira.



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References:
Suggestions for trigger manager device Nilson Pereira via Tech-talk
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