200MHz VFO

Anyone who needs an app note to tell him/her every little thing is lost anyway. App notes advise, they don't teach. If you need to be taught, get some background somewhere else.

Reply to
bloggs.fredbloggs.fred
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He may be writing the app note but he's not developing and testing circuits that go into the app note unless the manufacturer is populated with maroons like TI. Their app notes read like a lesson from Romper Room.

Reply to
bloggs.fredbloggs.fred

--
God wouldn't have it any other way; you're just along for the ride.
Reply to
John Fields

I worked for a guy once who did circuit design by tossing together a salad of circuits from data sheets, with no attention paid to grounding or impedance matching issues (or for keeping quiet circuits away from noisy ones, for that matter).

"Seems to work" was a pretty good summation of what he got, and was part of why he hired me.

--
Tim Wescott 
Control system and signal processing consulting 
www.wescottdesign.com
Reply to
Tim Wescott

My old original...

will do that. However I believe there's now a 12000 series ECL/PECL equivalent that will go even faster. ...Jim Thompson

--
| James E.Thompson                                 |    mens     | 
| Analog Innovations                               |     et      | 
| Analog/Mixed-Signal ASIC's and Discrete Systems  |    manus    | 
| San Tan Valley, AZ 85142   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.
Reply to
Jim Thompson

Thanks Fred, (and others) I think mini circuits may be the answer. I'll order one to play with.

George H.

Reply to
George Herold

OK I think I should be able to make the VCO control voltage stable at the mV level. I don't really need such a big range. But if I go the minicircuits route I'm stuck with whatever varactor they put in there.

George H.

Reply to
George Herold

OK Thanks Jim, I think I may spend money and save time by just getting a minicircuits thing.

George H.

Reply to
George Herold

Certainly. Hard to beat someone putting it all in one package for you.

[snip] ...Jim Thompson
--
| James E.Thompson                                 |    mens     | 
| Analog Innovations                               |     et      | 
| Analog/Mixed-Signal ASIC's and Discrete Systems  |    manus    | 
| San Tan Valley, AZ 85142   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.
Reply to
Jim Thompson

Cleaning it up with an RC lowpass isn't very hard--that's what's inside the MCL VCO.

Cheers

Phil Hobbs

Reply to
Phil Hobbs

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