1 GHz synthesizer

Feb 24, 2010 45 Replies

well, how about faking a circulator too:

Charles Wenzel's neat little widget:

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Steve

Hadn't seen that one above before, but I saved the following when it first appeared...

Trivial to fake in PSpice ...Jim Thompson

-- | James E.Thompson, CTO | mens | | Analog Innovations, Inc. | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | Phoenix, Arizona 85048 Skype: Contacts Only | | | Voice:(480)460-2350 Fax: Available upon request | Brass Rat | | E-mail Icon at

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| 1962 | I love to cook with wine. Sometimes I even put it in the food.

The Dishal procedure is described in "Randall W. Rhea: HF filter design and computer simulation" Mc Graw-Hill ISBN 0-07-052055-0 pages 392-394 Everyone doing practical filter design should have this book.

Rhea has also a good oscillator design book and is the author of that what evolved to Eagleware / Agilent Genesys. (has nothing to do with the Eagle layout program) Genesys also has a nice filter design plugin.

regards, Gerhard

I'll go post that on ABSE -- I have both the printed copy and PDF of that book...

---Joel

Woweeeeee! Thanks! ...Jim Thompson

| James E.Thompson, CTO | mens | | Analog Innovations, Inc. | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | Phoenix, Arizona 85048 Skype: Contacts Only | | | Voice:(480)460-2350 Fax: Available upon request | Brass Rat | | E-mail Icon at http://www.analog-innovations.com | 1962 | I love to cook with wine. Sometimes I even put it in the food.

reference input is a

system

ADT2-1T

100-ohm 0402

comparator.

into the (3.84

zero-crossings.

very close to

spurs.

spurs (quite

blade of a

signal. =A0I

to ground.

that area.

easily put small

10mm away. =A0I will

holes through

=A0Annoyingly, there

frequency and VCO

leakage

the

would

too. It

phones,

phase noise.

help.

filtering, and

the

could

good. =A0I was

drop that

comparator,

with 5

50MHz.

some

~5

flat

Here is a deal, do it for 1 kHz and 5 kHz instead and let others scale = it.

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