A ROM-Less Direct Digital Frequency Synthesizer Based on Hybrid Polynomial Approximation

Table 5

Performance Comparisons with published work.

Reference	Design technique	Supply	SFDR (dBc)	Power (uW/MHz)	Clock (MHz)	Area (um^2)	Normalized area ×10^5	Process (nm)
[13]	Piecewise linear	3.3	84.2	NA	320	282000	23	350
[10]	Eighth-order polynomial	1.8	95	160	500	95000	29.3	180
[9]	Two segment fourth order	2.5	90	410	200	720000	115.2	250
This paper	Hybrid polynomial	0.9	90	6.55	430	908	5.67	40