[time-nuts] distribution amplifier
John Ackermann N8UR
jra at febo.com
Sat Aug 26 07:35:26 EDT 2006
SAIDJACK at aol.com said the following on 08/25/2006 10:23 PM:
> Hi Didier,
> I tried this with a Maxim video amp, and my 10MHz noise floor went from
> -155dBc/Hz on the input to about 80-90dBc/Hz on the output of the amp.
> 80dBc is great for Video (generally arund 50dB SNR), but for timing it's a
That's interesting. The MAX477 video amp that is used in the TADD-1
(http://www.tapr.org/kits_tadd-1.html) does a lot better than that.
Here is a phase noise plot of the TADD-1 at 10MHz; it is better than
-105dBc at 1Hz and reaches a noise floor of -142dBc at less than 100Hz.
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