CDBA-Based Universal Biquad Filter and Quadrature Oscillator

Table 1

Total harmonic distortion analysis of the proposed CDBA-based quadrature oscillator of Figure 4.

Harmonic no.	Frequency (Hz)	Fourier component	Normalized component	Phase (Deg)	Normalized phase
1	1.592E + 04	8.264E + 00	1.000E + 00	1.232E + 02	0.000E + 00
2	3.183E + 04	2.023E-01	2.447E-02	1.357E + 02	1.249E + 01
3	4.775E + 04	9.652E-02	1.168E-02	1.680E + 02	4.563E + 01
4	6.366E + 04	6.915E-02	8.368E-03	1.418E + 02	1.854E + 01
5	7.958E + 04	1.405E-02	1.701E-03	−1.206E + 02	−2.438E + 02
DC component = −1.699764E-01
Total harmonic distortion = 2.948440E + 00 PERCENT