Low power current-mode second-order bandpass IF filter

Fabre, Alain; Saaid, O.; Wiest, F.; Boucheron, C.

doi:10.1109/82.592570

Cited by 66 publications

(32 citation statements)

References 23 publications

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“…Many of these components offer features for electronic control and great frequency response. Mentioned elements find wide range of applications in the field of sensor, control, measuring, automotive electronics, acoustic, and high-speed & radio-communication systems (amplifiers, filters, oscillators, modulators, active rectifiers, etc) [22][23][24][25][26][27][28].…”

Section: Introductionmentioning

confidence: 99%

New Double Current Controlled CFA (DCC–CFA) Based Voltage–Mode Oscillator with Independent Electronic Control of Oscillation Condition and Frequency

Šotner¹,

Herencsár²,

Jeřábek³

et al. 2013

Journal of Electrical Engineering

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In this paper, a new electronically tunable quadrature oscillator (ETQO) based on two modified versions of current feedback amplifiers (CFAs), the so called double current controlled CFA (DCC-CFAs) is presented. The frequency of oscillation (FO) of the proposed voltage-mode (VM) ETQO is electronically adjustable by current gain or by varying the intrinsic resistance of the X terminal of the active element used. The condition of oscillation (CO) is adjustable by current gain independently with respect to frequency of oscillation. Simultaneous control of current gain and intrinsic resistance allows linear control of FO and provides extension of frequency tuning range. In the proposed circuit all the capacitors are grounded. The use of only grounded capacitors makes the proposed circuit ideal for integrated circuit implementation. The presented active element realized by using BiCMOS technology and the behavior of proposed circuit are discussed in details. The theoretical results are verified by SPICE simulations based on CMOS ON-Semi C5 0.5 µ m and bipolar ultra high frequency transistor arrays Intersil HFA 3096 process parameters.

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Section: Introductionmentioning

confidence: 99%

New Double Current Controlled CFA (DCC–CFA) Based Voltage–Mode Oscillator with Independent Electronic Control of Oscillation Condition and Frequency

Šotner¹,

Herencsár²,

Jeřábek³

et al. 2013

Journal of Electrical Engineering

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“…R y , C y , R z , C z ) and inductance L x in series to R x at terminal x [16]. The effects of these parasites on filter response depend strongly on circuit topology.…”

Section: Influence Of CCCII Nonidealities On Filter Characteristics Amentioning

confidence: 99%

A new electronically tunable current mode universal filter using MO-CCCII

Pandey

Paul

Jain

2008

Analog Integr Circ Sig Process

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A new electronically tunable universal current mode biquad filter structure employing three multiple output current controlled conveyors (MOCCCII) and two grounded capacitors is presented. The proposed filter offers the following advantageous features: low input impedance and high output impedance-a desirable property of current mode filters; realization of low pass, band pass, high pass, notch, and all pass; no matching constraint; low sensitivity performance and use of grounded capacitors suitable for integration. The practical design problems due to nonlinearities of MOCCCIIs have also been addressed. The feasibility of the design is confirmed via SPICE simulations.

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“…Electronic programmability of the CCCII is attributed to the dependence of parasitic resistance at terminal x on the bias current of the conveyor [10,11]. Moreover different bipolar implementations of CCCII are also given in the literature such as MO-CCCII [12] and DO-CCCII [13].…”

Section: Introductionmentioning

confidence: 98%