On Mon, 20 Feb 2012 11:28:01 -0500 Michael Baker <mp...@clanbaker.org> wrote:
> Here is a link to a TI app note on using op-amps for > RF. It occurred to me that this might work OK for > distribution of the ref freq from a GPSDO... > > http://www.ti.com/lit/an/slyt102/slyt102.pdf Depends on what you want to do and what your specs are. If you just need a 10MHz signal that looks ok, then an Opamp is an obvious choice. It is by far simpler to design than a discrete solution (especially today, when nobody knows how a transistor works). Just plug it in, a few resistors around it and you're done. But there are two things that the article does not tell you: Noise and power. Opamps (used as amplifiers) generally have a higher noise than equivalent discrete transistor circuits and use more power. So if you care about jitter, noise and want to be in the nutty of the time-nutty region, then there is no way around designing your own distribution amplifier using discrete components. And just for reference: There are already Opamps around with a gain bandwidth product of 1GHz. Attila Kinali -- The trouble with you, Shev, is you don't say anything until you've saved up a whole truckload of damned heavy brick arguments and then you dump them all out and never look at the bleeding body mangled beneath the heap -- Tirin, The Dispossessed, U. Le Guin _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.