Title :
A 3rd order OTA-C low pass filter for W-CDMA standard applications in zero-IF receiver
Author :
Ochoa, J.L.L. ; Guerrero, E.M. ; Hernandez, E.J.
Author_Institution :
Dept. of Electron., Syst. & Inf., ITESO (Inst. Tecnol. y de Estudios Super. de Occidente), Tlaquepaque, Mexico
Abstract :
This work presents the design of a 3rd-order low-pass OTA-C filter for W-CDMA protocol wireless communications applications. The filter is designed for Butterworth response with corner frequency of 2.68 MHz, stop-band frequency of 10 MHz, pass-band ripple of 3 dB and stop-band attenuation of 34 dB. Filter design is performed in OnSemi 0.5μm CMOS process. The involved transconductor consists of a single-stage fully-differential OTA with dynamic source degeneration and common mode feedback.
Keywords :
Butterworth filters; CMOS integrated circuits; code division multiple access; low-pass filters; operational amplifiers; radio receivers; telecommunication standards; 3rd order OTA-C low pass filter; 3rd-order low-pass OTA-C filter; Butterworth response; CMOS; W-CDMA protocol wireless communications; W-CDMA standard; common mode feedback; dynamic source degeneration; filter design; frequency 10 MHz; frequency 2.68 MHz; operational transconductance amplifiers; size 0.5 mum; stop-band frequency; zero-IF receiver; CMOS-OTA; IC design; OTA-C filters; continuous time filters; wireless communications;
Conference_Titel :
Electronics, Communications and Computing (CONIELECOMP), 2013 International Conference on
Conference_Location :
Cholula
Print_ISBN :
978-1-4673-6156-9
DOI :
10.1109/CONIELECOMP.2013.6525795
