TY - JFULL AU - Bhaba Priyo Das and Neville Watson and Yonghe Liu PY - 2010/9/ TI - Simulation of Voltage Controlled Tunable All Pass Filter Using LM13700 OTA T2 - International Journal of Computer and Systems Engineering SP - 1198 EP - 1203 VL - 4 SN - 1307-6892 UR - https://publications.waset.org/pdf/8924 PU - World Academy of Science, Engineering and Technology NX - Open Science Index 44, 2010 N2 - In recent years Operational Transconductance Amplifier based high frequency integrated circuits, filters and systems have been widely investigated. The usefulness of OTAs over conventional OP-Amps in the design of both first order and second order active filters are well documented. This paper discusses some of the tunability issues using the Matlab/Simulink® software which are previously unreported for any commercial OTA. Using the simulation results two first order voltage controlled all pass filters with phase tuning capability are proposed. ER -