Electronically Tunable Dual-Input Integrator Employing a Single CDBA and a Multiplier: Voltage Controlled Quadrature Oscillator Design

Table 1

𝑆_𝑓 values for some recent CDBA-based quadrature-oscillators.

Ref.	Electronic tunability	𝑓𝑜-tuning range (MHz)	𝑆𝑓
		reported
[3]	No	0.02	≈2𝑛(1−𝜀)≈2𝑛
[4]	No	0.01	2/(1+2𝜀)≈2
[6]	No	0.02	𝑛(2−3𝜀)≈2𝑛
Proposed	Yes	1.02	2𝑛(2−3𝜀)≈4𝑛≫1