[SI-LIST] Re: Pros/Cons of Agilent vs Tek scope for DDR2/DDR3 characterization
- From: "Grasso, Charles" <Charles.Grasso@xxxxxxxxxxxx>
- To: "Eugene Ivanov" <eugene.ivanov@xxxxxxx>, "praveen kumar" <ypk705@xxxxxxxxx>
- Date: Mon, 20 Apr 2009 09:58:04 -0600
I would have thought that the first decision cut would
be the probes?
Who has the better probe set?
-----Original Message-----
From: si-list-bounce@xxxxxxxxxxxxx [mailto:si-list-bounce@xxxxxxxxxxxxx]
On Behalf Of Eugene Ivanov
Sent: Friday, April 17, 2009 7:27 AM
To: praveen kumar
Cc: si-list@xxxxxxxxxxxxx
Subject: [SI-LIST] Re: Pros/Cons of Agilent vs Tek scope for DDR2/DDR3
characterization
My problem with Agilent scope is that it doesn't support a crossover
measurement of the dif signal as a standalone application, only as a
part of the compliance test. Another usefull feature Agilent missing is
gating the measurements by cursors. For instance, I'm looking at DQS
Read immediately followed by DQS Write and want to make a crossover
measurements only on DQS Write (or just first DQS Write transition) -
the situation where On-die termination turns-off on the controller and
turns-on on the memory. I've been told the work-around on Agilent is to
zoom into the area of concern. But it won't work with Infiniscan
triggers
From: praveen kumar [mailto:ypk705@xxxxxxxxx]
Sent: Thursday, April 16, 2009 11:39 PM
To: Eugene Ivanov
Cc: si-list@xxxxxxxxxxxxx
Subject: Re: [SI-LIST] Pros/Cons of Agilent vs Tek scope for DDR2/DDR3
characterization
Eugene
From the probing easiness for DDR, agilent makes life easier but the tek
has come out with a DDR analysis s/w and trimode probes which are worth
trying. Check it out..
Regards
YPK
On Fri, Apr 17, 2009 at 9:37 AM, Eugene Ivanov
<eugene.ivanov@xxxxxxx<mailto:eugene.ivanov@xxxxxxx>> wrote:
Need to make a selection of which scope to buy for DDR2/3 i/f JEDEC
compliance testing on the memory controller(s). I personally like Tek
scope but it is more expensive and its DDR compliance test software
doesn't support all the required parameters.
Did anybody evaluate both scopes for this application and which one you
picked? What were pros/cons to go with Tek vs Agilent or vice versa?
Thanks in advance
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