Here is a link I found to use ADS to simulate ring oscillators. The is a lot
more stuff if you goggle modeling ring oscillators in ADS. I have had
reasonable luck modeling phase noise using BJT’s in ADS. There is a company
called Modelithics
that can supply models for various transistors that
> On Oct 26, 2017, at 19:29, Chris Caudle wrote:
>
> On Thu, October 26, 2017 7:38 pm, Denny Page wrote:
>> If you are going to do PTP with ptp4l, or NTP with Chrony, you are going
>> to want hardware timestamping support on the ethernet phy.
>
> Or the MAC. The processor used on BeagleBone Bl
Hi
Not a lot of detail out there other than that the deal is expected to close
before the
end of December.
Bob
> On Oct 27, 2017, at 6:42 PM, jimlux wrote:
>
> from a recent email blast - "I am pleased to inform you that Microsemi
> Corporation has agreed to acquire the high performance timi
Hoi Ulrich,
On Fri, 27 Oct 2017 17:04:00 -0400
Ulrich Rohde via time-nuts wrote:
> Wiley: RF / Microwave Circuit Design for Wireless Applications, 2nd Edition -
> Ulrich L. Rohde, Matthias Rudolph
I had a quick look at this book.. boy.. I should have had this book
years ago! It is now on my to
from a recent email blast - "I am pleased to inform you that Microsemi
Corporation has agreed to acquire the high performance timing business
of Vectron International, a Knowles company."
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time-nuts mailing list -- time-nuts@febo.com
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I gave a general answer
In a message dated 10/27/2017 5:14:48 PM Eastern Standard Time,
att...@kinali.ch writes:
On Fri, 27 Oct 2017 22:55:06 +0200
Attila Kinali wrote:
> On Fri, 27 Oct 2017 16:46:20 -0400
> Ulrich Rohde via time-nuts wrote:
>
> > yes, where to ?
>
> Wie wäre es an mei
On Fri, 27 Oct 2017 22:55:06 +0200
Attila Kinali wrote:
> On Fri, 27 Oct 2017 16:46:20 -0400
> Ulrich Rohde via time-nuts wrote:
>
> > yes, where to ?
>
> Wie wäre es an meine Emailadresse (nimmt alles bis 20MB)?
> Ich könnte es dann für den Rest der Mailingliste auf meinen
> Webserver stellen
Hoi Leo,
On Fri, 27 Oct 2017 20:27:53 +0100
Leo Bodnar wrote:
> Last year I have designed an NTP server with sub-microsecond turnaround
> accuracy/jitter at fully saturated 100K+ packets/sec traffic (full 100Mb wire
> speed) that costs just £250 from stock.
> Its holdover performance on signal
Will get it to you next week.
It was a fundamental paper, the ever first one ever to prove to be able
evaluate the correct noise performance (against measured data) of such an
amplifier. It included all distributed elements a correct FET noise model.
You can find a shorter version in :
Wi
See below .
In a message dated 10/27/2017 3:02:03 PM Eastern Standard Time,
att...@kinali.ch writes:
Hoi Ulrich,
On Sun, 22 Oct 2017 18:31:33 -0400
Ulrich Rohde via time-nuts wrote:
> Eric has done a lot of excellent work, I know his presentations . While
> I do no always agree with t
Hoi Ulrich
On Fri, 27 Oct 2017 16:46:20 -0400
Ulrich Rohde via time-nuts wrote:
> yes, where to ?
Wie wäre es an meine Emailadresse (nimmt alles bis 20MB)?
Ich könnte es dann für den Rest der Mailingliste auf meinen
Webserver stellen.
Gruess
Attila Kinali
--
You know,
yes, where to ?
In a message dated 10/27/2017 3:26:40 PM Eastern Standard Time,
kc0...@gmail.com writes:
With respect to your first question, I subscribe to MWJ and, after a
modest amount of looking on the web, find that the MWJ archives seem to
go back only as far as 2002. I was unable to
Hi Nick,
Last year I have designed an NTP server with sub-microsecond turnaround
accuracy/jitter at fully saturated 100K+ packets/sec traffic (full 100Mb wire
speed) that costs just £250 from stock.
Its holdover performance on signal loss is in the order of 4-5ms/day.
https://store.uputronics.co
With respect to your first question, I subscribe to MWJ and, after a
modest amount of looking on the web, find that the MWJ archives seem to
go back only as far as 2002. I was unable to locate a copy of the 1988
paper elsewhere on the web, which seems strange. Perhaps someone out
there has a pa
On Tue, 24 Oct 2017 12:12:24 -0700
"Richard (Rick) Karlquist" wrote:
> This problem came up in the design of the 5071A.
> I elected to avoid narrowband filters by using
> some tricks described in my FCS paper of about
> 25 years ago. I didn't find it necessary to ovenize
> the output section.
F
Hoi Ulrich,
On Sun, 22 Oct 2017 18:31:33 -0400
Ulrich Rohde via time-nuts wrote:
> Eric has done a lot of excellent work, I know his presentations . While
> I do no always agree with the ADS approach and use my own software the ADS
> is a very good all-round CAD microwave CAD tool. More on the t
Hi Eric,
On Sun, 22 Oct 2017 14:03:02 -0700
Eric Drucker wrote:
> I have done a lot of phase noise modeling using LT SPICE over the years for
> PLL’s. It will not model the phase noise of the individual devices like
> VCO’s, dividers, phase detectors. You can input the phase noise profiles of
>
Hoi Bruce,
On Mon, 23 Oct 2017 09:58:40 +1300 (NZDT)
Bruce Griffiths wrote:
> Since close in phase noise can result from up conversion of supply noise
> etc via circuit non linearities, using an AC analysis won't work.
>
> Only transient simulation or perhaps analytical modelling of the various
Hi Rafael
On Sun, 22 Oct 2017 17:20:52 +0200
Rafael Gajanec wrote:
> you haven't specified what sort of circuits would you like to simulate,
Simplified, they are differential amplifiers driven into saturation.
A bit more detailed, I am looking at ring oscillator stages and sine-to-square
conve
Hoi Dana,
On Sun, 22 Oct 2017 09:23:26 -0500
Dana Whitlow wrote:
> But I am surprised about the simulation times that you speak of.
> Would you be willing to post some information detailing your
> methodology and an example "simple" circuit?
As Bruce already mentioned, the simulation times requ
Living in south Florida I have been through 8 hurricanes and uncountable
thunderstorms, while being a time-nut. At no time a hold over, because of
excellent power backup. Once a controlled power shut down in Miami because I
had to make a choice between window Air conditioner, refrigerators an
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