[time-nuts] Very challenging phase noise measurement, does anyone have an idea??
marek at duch.cz
Wed Dec 5 22:34:13 UTC 2012
>>> running mode and lock the other one to the first one using an XOR gate
>>> and then use the output of the XOR gate as an output signal. However,
>>> we are wondering if any of you know a better idea. Maybe there is an
>>> off-the-shelf piece
> Nearly any idea is better than the XOR gate you proposed. A simple
> double balanced diode mixer followed by an LT1028 preamp would easily
> meet your needs.
What about simply mixing two signals in a resistor network, sampling by
ADC, and mixing purely in DSP domain on a non-linearity (e.g. f(x)=x^2)?
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