[time-nuts] OP-Amps for 10MHz distribution...?

Bob Camp lists at rtty.us
Tue Feb 28 12:34:09 UTC 2012


Very cool. How much power can you run through the device? Put another way, if you drive it with +13 dbm do all the numbers get 5 db better?

I doubt very many of us will be worrying about weather it's below -153 at 10 Hz or not…


On Feb 28, 2012, at 5:42 AM, Bruce Griffiths wrote:

> The attached plot indicates the phase noise performance obtainable with a wideband FET (OPA653) input opamp.
> With a 10MHz +9dBm input, the phase noise floor is around -163dBc/Hz at 1kHz offset and around -154dBc/Hz at 10Hz offset.
> A quieter test source would be useful particularly for offsets below 10Hz.
> Bruce
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