[time-nuts] Advice on 10 MHz isolation/distribution (Clay)
bruce.griffiths at xtra.co.nz
Sat Feb 20 19:43:30 UTC 2010
life speed wrote:
> From: Bruce Griffiths<bruce.griffiths at xtra.co.nz>
> Subject: Re: [time-nuts] Advice on 10 MHz isolation/distribution
> Its easy to calculate a lower bound to the amplifier phase noise floor
> from the signal level at the output and the amplifier output noise due
> to feedback resistors together with the amplifier input voltage and
> current noise.
> The actual phase noise floor may be a few dB higher.
> Yes, it is easy to calculate.
The calculation is useful to help eliminate amplifiers that will not
meet the phase noise floor specs.
The amplifiers that remain will then need to be tested/measured for
their actual phase noise.
More information about the time-nuts