mouzid
Full Member level 5
VCO phase noise
Please pardon my ignorance.
I have three questions:
1- When we say that a VCO is better for the same frequency offset ?
Consider a VCO whith a phase noise of -85.5 dBc/Hz @10KHz and the second having a phase noise of -100.2 dBc @10KHz Which is better
2- When we say that a VCO is better for same the phase noise ?
Consider VCO1 phase noise is -85 dBc @1KHz and VCO2 -85dBc @1Mhz.
Which one is better.
3- The joined figure is a phase noise plot of a VCO (2.5Ghz-4.5Ghz)
the figure shows a phase noise of -63 dBc/Hz@1 Mhz offset. Is it a good VCO ?
Please pardon my ignorance.
I have three questions:
1- When we say that a VCO is better for the same frequency offset ?
Consider a VCO whith a phase noise of -85.5 dBc/Hz @10KHz and the second having a phase noise of -100.2 dBc @10KHz Which is better
2- When we say that a VCO is better for same the phase noise ?
Consider VCO1 phase noise is -85 dBc @1KHz and VCO2 -85dBc @1Mhz.
Which one is better.
3- The joined figure is a phase noise plot of a VCO (2.5Ghz-4.5Ghz)
the figure shows a phase noise of -63 dBc/Hz@1 Mhz offset. Is it a good VCO ?