High Input Impedance Mixed-mode Biquad Filter with Orthogonal Tune of Natural Frequency and Quality Factor

被引：0

作者：

Chumwangwapee, Kanokrat ^{[1
]}

Jaikla, Winai ^{[1
]}

Sunthonkanokpong, Wisuit ^{[1
]}

Jaikhang, Wipobh ^{[2
]}

Maneewan, Suwat ^{[3
]}

Sreewirote, Bancha ^{[4
]}

机构：

[1] King Mongkuts Inst Technol Ladkrabang, Fac Ind Educ, Elect Commun Engn, Bangkok 10520, Thailand

[2] Chiangrai Rajabhat Univ, Fac Ind Technol, Program Elect & Comp Engn, Chiangrai 57100, Thailand

[3] Buriram Rajabhat Univ, Fac Ind Technol, Dept Elect Technol, Buriram 31000, Thailand

[4] Thonburi Univ, Fac Engn, Dept Elect Engn, Bangkok 10160, Thailand

来源：

2014 FOURTH JOINT INTERNATIONAL CONFERENCE ON INFORMATION AND COMMUNICATION TECHNOLOGY, ELECTRONIC AND ELECTRICAL ENGINEERING (JICTEE 2014) | 2014年

关键词：

analog filter; mixed-mode; VDTA; single-input multiple-outputs;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This paper deals with a single-input multiple-output mixed-mode second-order filter providing two voltage-mode functions (low-pass and band-pass) and three transconductance-mode functions (low-pass, band-pass and band-reject) based on voltage differencing transconductance amplifier (VDTA). The quality factor and pole frequency can be electronically and orthogonally tuned via the bias current. The proposed circuit uses two VDTAs and two grounded capacitors without any external resistors, which is suitable to further develop into an integrated circuit. Moreover, the circuit possesses high input impedance, providing easy cascading. The PSPICE simulation results are included, verifying the key characteristics of the proposed filter. The given results agree well with the theoretical presumptions.

引用

页数：4

共 13 条

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