An elliptic filter based on MLF LF structure for wireless receiver

Author

Xi Zhu ; Yichuang Sun

Author_Institution

Dept. of Electron., Macquarie Univ., Sydney, NSW, Australia

fYear

2013

fDate

4-7 Aug. 2013

Firstpage

205

Lastpage

208

Abstract

A CMOS fifth-order Gm-C elliptic lowpass filter based on the voltage-mode multiple loop feedback (MLF) leap-frog (LF) configuration is designed. The filter is implemented using a fully-differential linear operational transconductance amplifier (OTA). PSpice simulations using a standard TSMC 0.18μm CMOS process with 1.8V power supply have shown that the cut-off frequency of the proposed filter can be tuned from 28MHz to 44MHz, dynamic range is about 67dB, and power consumption is about 67mW at 30MHz. Moreover, 0.7dB passband ripple and 65dB stopband attenuation are achieved for the designed filter.

Keywords

CMOS integrated circuits; HF amplifiers; VHF amplifiers; VHF circuits; VHF filters; circuit feedback; circuit simulation; circuit tuning; differential amplifiers; elliptic filters; integrated circuit design; low-pass filters; operational amplifiers; radio receivers; radiofrequency integrated circuits; CMOS fifth-order Gm-C elliptic lowpass filter; MLF LF structure; OTA; PSpice simulation; frequency 28 MHz to 44 MHz; fully-differential linear operational transconductance amplifier; gain 0.7 dB; gain 65 dB; size 0.18 mum; standard TSMC CMOS process; voltage 1.8 V; voltage-mode multiple loop feedback leap-frog configuration; wireless receiver;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems (MWSCAS), 2013 IEEE 56th International Midwest Symposium on

Conference_Location

Columbus, OH

ISSN

1548-3746

Type

conf

DOI

10.1109/MWSCAS.2013.6674621

Filename

6674621