[time-nuts] Distribution amplifier for 10MHz and 1 pps

[Attila Kinali]

On Sat, 16 Mar 2019 18:01:36 +0000 (UTC)
Taka Kamiya via time-nuts <time-nuts at lists.febo.com> wrote:

> But how do I do this on 10MHz side?  I'd like to have minimal distortion 
> (sine wave) and high isolation.  I acquired a few signal splitter and 
> monolithic amplifiers.  Split first and amplify?  Amplify first and split?  
> Remember it's only 2 to 3 channels.  Amplifier module has too much gain, so 
> I'll probably have to use attenuators.

Amplify - split - amplify.

The first amplifier is there to compensate for the loss of the splitter.
You might want to add additional attenuators between the splitter
and the output amplifiers for increased isolation between channels.

> Have anyone run into this kind of thing?  Is there an existing design?  
> Anything anyone would like to share?

Anders Wallin has a design that seems to work very well:
http://www.anderswallin.net/2017/01/frequency-distribution-amplifier-2017-01/
(His blog is worth watching, he does some very nice electronics)

			Attila Kinali

-- 
<JaberWorky>	The bad part of Zurich is where the degenerates
                throw DARK chocolate at you.