PLL for 5G mmWave
This paper presents research and implementation of a high frequency Integer-N phase-locked loop for digital beamforming in mobile devices. Multiple topologies investigated whereof two were implemented. The transient phase noise of the PLL is -104dB/-95dB @1MHz. The output frequency range is from 8G-10G. Reference signal is 163.84MHz, reference-spurs is -80dBc/-98dBc lower than main frequency. RMS