From: Mike Hughes (firstname.lastname@example.org)
Date: Mon Apr 02 2001 - 12:36:27 PDT
A while ago, a TEK apps engineer told me that the "noise floor" of the 11801B is
around 2pS RMS. My impression was that this limit is independent of the
frequency being measured. (As long as you are within the BW of the
scope/sampling head of course.)
Khalid Ansari wrote:
> For jitter measurements at 2.5GHz how accurate is a sampling scope
> (Ex: Tek 11801 B/C) as opposed to a Time Interval Analyzer
> (Ex: Wavecrest). How about frequencies around 100-200Mhz. In the
> case if you don't have a TIA how acceptable are the values taken using
> the scope. In the past I have used the scope only for approximate values.
> Thanks in advance,
> Khalid Ansari
> Switch Fabric Applications
> Advanced Networking Products Division
> Vitesse Semiconductor Corp.
> 3408, Garrett Ave., Santa Clara, 95054
> Phone: (408) 986-4381 x144
> fax: (408) 986-6050
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