Research Article

A Low-Power Digitally Controlled Oscillator for All Digital Phase-Locked Loops

Table 2

Impact of each control bit on the DCO Period.

ItemsCoarse DelayFine Delay

Resolution6 bit6 bit
Max. DCO Gain10 ps1 ps
Avg. DCO Gain7 ps0.7 ps
Operation Range570 MHz~800 MHz
Power Consumption2.2 mW @ 650 MHz