[time-nuts] SMD TADD-1 distribution amplifier - seeking comments and suggestions?

Anders Wallin anders.e.e.wallin at gmail.com
Mon Dec 21 15:05:34 EST 2015


> > AD8055 in non-inverting circuit with 1+2k7/2k7 gain has 9.6 nV/sqrt(Hz)
> > input-referred voltage noise PSD (if I calculated correctly..)
>
> With +10dBm input the corresponding SSB PN floor should be  around
> -163dBc/Hz.
>

HI,
How is that calculated? I only get this far:
9.6nV/sqrt(Hz) into a 50R load is 1.8e-18 W/Hz or -147.3 dBm/Hz

what then? split half-and-half into AM and PN, and how to relate that to
the carrier power +10dBm?

thanks,
Anders


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