An ultra wide-band adaptive frequency divider for mm-wave PLL applications

Trying to achieve the maximum frequency range at which a PLL for mm-wave applications operates, an ultra wide-band frequency divider was implemented exploiting the load modulation of existing dynamic latch based frequency dividers topology. The result was an adaptive divider with input frequency range from 28GHz to 80GHz without external trimming. The divider was implemented on TSMC CMOS 65nm technology at 1V power supply, with 11.5mW maximum power dissipation.