[time-nuts] PLL book 3rd edition
KA2WEU at aol.com
KA2WEU at aol.com
Tue Mar 8 11:18:19 UTC 2016
Good Morning,
technically you are correct, most buy what they find and live with a
compromise. But companies like mine, R&S, test equipment , need superior
performance and many parts which we need, we have made by foundries. Numerically
controlled oscillators belong to this and modern IQ modulators and arbitrary
wave form generators are the norm., much better then many analog type
designs. Most chips on the market are compromises for power consumption and
phase noise. We now have fraction and integer chips with a noise floor of
-172 dBc/Hz up to 22 GHz and many MHz off and these require careful planing
and are needed for high end test equipments. But maybe my application is
too special . For me Hittite takes too much power and all these companies
make nice parts nut not really leading edge parts. Keysight could not build
many "boxes" without their own designs, architecture and hardware like
oscillators
Thanks, Ulrich .
In a message dated 3/7/2016 10:33:29 P.M. Eastern Standard Time,
richard at karlquist.com writes:
I know for me, I mainly use the "synthesizer on a chip" IC's
from Analog Devices/Hittite and National. Their data sheets
and ap notes serve as the "textbook". I'm not sure there
will be much call going forward for a book on fundamentals
that explains how to design synthesizers from first
principles using basic building blocks. Having designed
PLL's for over 40 years, I know all about how to do this,
yet is now a nearly useless skill with the IC's now available.
Only the IC designers themselves need these skills.
Occasionally I find myself mentoring these guys in the
hope of getting better chips to buy :-) (I have a
patent on a phase detector design that was made into
a chip, but the chip is built by Keysight's captive
foundry which doesn't sell much to the merchant market.)
No criticism of the book; it's just a market issue.
Rick N6RK
On 3/7/2016 4:52 PM, KA2WEU--- via time-nuts wrote:
> To all :
>
> I have published the following book
>
> " Microwave and Wireless Synthesizers: Theory and Design, Ulrich L.
Rohde,
> John Wiley & Sons, August 1997, ISBN 0-471-52019-5."
>
> and have since kind of drifted into the VCO und high stability
> oscillators.
> The first edition
>
> "Digital PLL Frequency Synthesizers - Theory and Design, Ulrich L.
Rohde,
> Prentice-Hall, Inc., Englewood Cliffs, NJ, January 1983 "
>
> has sold more then 10 000 copies. Is there any of you out there who
would
> like to take over a needed update and take over the resulting revenues
and
> unfortunately also the work and glory and who feels qualified to so ?
>
> As I am more or less now in microwave technology and less in PLL IC's,
I
> hate to see this standard textbook disappear.... Who can help or want to
> take over?
>
> Ulrich
>
>
>
>
>
>
> In a message dated 3/2/2016 12:04:00 P.M. Eastern Standard Time,
> time-nuts at febo.com writes:
>
>
>
>
> In a message dated 2/16/2016 9:03:59 A.M. Eastern Standard Time,
> time-nuts at febo.com writes:.
>
> http://www.synergymwave.com/articles/2016/calculation-of-fm-and-am.pdf
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