Hi. When measuring Phase Noise using PLL, what noise would be contribuded from the PLL into the amplifier? Lets say we disconnect the control voltage from the oscillator, shouldn't the input stage of the PLL contribute some, altough miniscule part to the total noise seen? Would this noise be masked by the noise from the phase detector?
The reason for asking is that I'm trying to improve my PN measurement setup. Currently the PLL consist of a unity gain buffer made of TL072 before the PLL filter, not unlike what Wentzel did in his amplifier. The PLL filter is a low noise op-amp (OP27). BR. Thomas. -- With Best regards, Thomas S. Knutsen. Please avoid sending me Word or PowerPoint attachments. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
