Electronically Tunable Quadrature Sinusoidal Oscillator with Equal Output Amplitudes during Frequency Tuning Process

Table 1

Comparison results of this work and recent works.

Ref	ABB	Number of ABB	Number of	Electronic tune of FO without affecting CO	Equal amplitudes during frequency tuning	No need of multiple output ABB	Providing additional sinusoidal current output with high impedance	Grounded C only	Experimental results
[23]	VDCC	1		No	No	No	Yes	Yes	No
[24]	VDCC	1		Yes	No	No	No	Yes	Yes
[25]	VDCC	2		Yes	No	No	Yes	Yes	No
[26]	CG-VDCC	1		Yes	Yes	No	No	Yes	No
[31]	CCCCTA	1		Yes	No	No	Yes	Yes	No
[32]	CCCCTA	2		Yes	No	No	Yes	Yes	No
[33]	CCII & BF	3		No	No	Yes	No	Yes	Yes
[34]	CCII	3		Yes	No	Yes	No	Yes	No
[35]	CDTA	2		Yes	No	No	Yes	Yes	No
[36]	CFOA	2		No	No	Yes	No	Yes	Yes
[37]	CFOA	2		No	No	Yes	No	Yes	Yes
[38]	DD-DXCCII	1		No	No	No	No	Yes	No
[39]	MDVCC	1		No	No	Yes	No	Yes	No
[40]	DVCCTA	1		Yes	No	No	Yes	Yes	No
[41]	FBVDBA	1		No	No	No	No	Yes	Yes
[42]	OTRA	2		No	No	Yes	No	No	Yes
[43]	MVDVTA	1		No	No	No	No	Yes	No
This work	VDCC	2		Yes	Yes	Yes	Yes	Yes	Yes