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

Table 3

Comparis on with existing DCOs.

			Items
Function	Proposed	TCAS-II^’	ISQED^’	ISSCC^’	JSSC^’
		05 [16]	02 [10]	03 [17]	03 [6]
Process	32 nm @ 0.9 V	0.35 um @ 3.3 V	0.13 um @ 1.65 V	0.6 um @ 5 V	0.35 um @ 3.3 V
DCO control world length	12 bits	15 bits	8 bits	10 bits	12 bits
LSB Resolution	1 ps	1.55 ps	40 ps	10 ps	5 ps
DCO output frequency	$570~800$ (MHz)	$18~214$ (MHz)	150 (MHz)	$10~12.5$ (MHz)	$45~450$ (MHz)
Power Consumption	2.2 mW @ 650 MHz	18 mW @ 200 MHz	1 mW @ 150 MHz	164 mW @ 100 MHz	100 mW @ 450 MHz