Abstract
The lo w voltage d igitally controlled current conveyors have been used to realize the d igitally controlled reconfigurable continuous time first order voltage mode phase shifters. Each of the realized phase shifters uses two digitally controlled current conveyers along with three passive elements. The realized phase shifters provide dig ital control to phase angle through an n-bit digital control word. The realized digitally controlled continuous time phase shifters are designed and verified using PSPICE and the results thus obtained justify the theory.
Highlights
Introduction of digital control to the current conveyor (CCII) has boosted its functional flexib ility and versatility in addit ion to its higher signal bandwidth, greater linearity and large signal bandwidth[1,2,3,4,5,6,7,8,9,10]
This paper basically deals with the realization of reconfigurable continuous time first order voltage mode phase shifters using Low voltage dig itally controlled CCII
The routine analysis yields the voltage transfers function for the reconfigurable phase shifter-I of “Figure 2(a)”
Summary
Introduction of digital control to the current conveyor (CCII) has boosted its functional flexib ility and versatility in addit ion to its higher signal bandwidth, greater linearity and large signal bandwidth[1,2,3,4,5,6,7,8,9,10] This dig ital control has eased the on chip control of continuous time systems through digital word with h igh resolution capability and reconfigurability[1,2,3,4,5],[10]. The routine analysis yields the voltage transfers function for the reconfigurable phase shifter-I of “Figure 2(a)”
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