hau...@keteu.org said:
I am trying to avoid an extra A/D step here, but I have no experience with
it. Post-filter, I am satisfied that a simple one-bit D/A with passive
filtering will get me to 16 bits resolution for the VCXO control, enough for
ppb resolution.
One bit D/As need a filter.
David,
Just a thought but have you tried Pasternack? They do 'custom' precision
cabling including 2.4mm connector options.
regards,
Paul, G8GJA
-Original Message-
From: time-nuts [mailto:time-nuts-boun...@febo.com] On Behalf Of Dr. David
Kirkby (Kirkby Microwave Ltd)
Sent: 30
On 30 Sep 2014 08:46, REEVES Paul paul.ree...@uk.thalesgroup.com wrote:
David,
Just a thought but have you tried Pasternack? They do 'custom' precision
cabling including 2.4mm connector options.
regards,
Paul, G8GJA
Hi Paul,
I don't know how good Pasternack are - I have seen some
On 9/30/14, 12:44 AM, REEVES Paul wrote:
David,
Just a thought but have you tried Pasternack? They do 'custom' precision
cabling including 2.4mm connector options.
regards,
Paul, G8GJA
Rather than Pasternack, you might find the following sources useful
Citrus Cables does nice quality,
On 29 September 2014 22:45, Bob Camp kb...@n1k.org wrote:
Hi
The information came from the HP data sheet on the oscillator. They provide
it to the people who manufacture the oscillators for them.
Bob
Can you share the data sheet?
Dave
On Sep 29, 2014, at 1:14 PM, Dr. David Kirkby
Hi Hal,
I'm familiar with 1-bit D/As and plan to use something a bit more evolved
than the MCU/counter approach. I am already working in an FPGA as that is
absolutely required to deal with the 80-MSPS 16-bit radio data stream.
(This is an SDR project first, a GPSDO project second, or maybe
hau...@keteu.org said:
It was the other end of the PLL I was hoping to get some pointers on.
Specifically, I can implement the dividers and the standard double-flip-flop
PFD, but what best replaces the charge pump in a fully-digital
implementation? I will have down/up signals which are
On 30 Sep 2014 14:16, Jim Lux jim...@earthlink.net wrote:
On 9/30/14, 12:44 AM, REEVES Paul wrote:
David,
Just a thought but have you tried Pasternack? They do 'custom' precision
cabling including 2.4mm connector options.
regards,
Paul, G8GJA
Rather than Pasternack, you might find
Is there a best way to do this without adding phase noise? For example, a
5V OCXO into an ADF4002, or a 3.3V or even 1.8V logic input. Is a resistive
divider the way to go?
Mark
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On 9/30/14, 4:56 PM, Dr. David Kirkby (Kirkby Microwave Ltd) wrote:
On 30 Sep 2014 14:16, Jim Lux jim...@earthlink.net wrote:
On 9/30/14, 12:44 AM, REEVES Paul wrote:
David,
Just a thought but have you tried Pasternack? They do 'custom' precision
cabling including 2.4mm connector options.
Hi
How quiet does it need to be?
Put another way - how good is the OCXO?
What frequency are we talking about?
What is the phase noise “need” after you get to 3.3V (is there a system spec)?
Bob
On Sep 30, 2014, at 5:46 PM, Mark Haun hau...@keteu.org wrote:
Is there a best way to do this
I would suggest some 3.3V logic (inverter) gate with 5V tolerant inputs
from Little Logic TI portfolio. There are buffered and unbuffered gate
available.
Em 2014-09-30 22:46, Mark Haun escreveu:
Is there a best way to do this without adding phase noise? For
example, a
5V OCXO into an
I have looked at Cloudflare and as soon as my domain is transferred, I will
get the free account.
It was already recommended by another user last week. Thanks!
The only issue is that my server will not see that traffic, which will
prevent me from having reliable statistics, but one cannot have
Looking at Cloudflare's website, they claim they will collect usage
statistics for you.
On Tue, Sep 30, 2014 at 8:55 PM, Didier Juges shali...@gmail.com wrote:
I have looked at Cloudflare and as soon as my domain is transferred, I will
get the free account.
It was already recommended by
Mark,
Lots of good parts on this page:
http://www.onsemi.com/PowerSolutions/parametrics.do?id=648
But as others are pointing out - it depends
Regards,
John
On Tue, Sep 30, 2014 at 2:46 PM, Mark Haun hau...@keteu.org wrote:
Is there a best way to do this without adding phase noise? For
Hi Bob,
The OCXO is one of those 26-MHz ebay Pletronics from a couple years
back. I would like to not degrade its close-in phase noise (quoted as
-100 dBc @ 10 Hz, -130 dBc @ 100 Hz). Thinking about Said's suggestion
to phase lock a higher-frequency sampling clock to this, with a loop BW
vesoa...@deea.isel.ipl.pt said:
I would suggest some 3.3V logic (inverter) gate with 5V tolerant inputs
from Little Logic TI portfolio. There are buffered and unbuffered gate
available.
What's the advantage of a chip over a pair of resistors?
hau...@keteu.org said:
I have seen a resistive
All,
There’s an apache plugin that allows you to get the statistics from cloudflare
on each hit. Take a look at mod_cloudflare
(https://www.cloudflare.com/resources-downloads)
I use it, works great. AND, they just announced yesterday that they have free
SSL now. =)
I would imagine with your
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