TY - GEN
T1 - A CMOS channel-select tunable filter for 3G wireless receivers
AU - Alzaher, Hussain
AU - Tasadduq, Nornun
AU - Ismail, Mohammed
PY - 2003
Y1 - 2003
N2 - A new approach for designing digitally programmable CMOS integrated baseband filters is presented. It utilizes digitally controlled current followers and R-2R ladders to provide precise frequency characteristics that can he tuned over a wide range without components spreading. A 6- order Buttemoth lowpass filter is designed for implementing the baseband channel select filter in an integrated multi-standard CMOS wireless receiver. Experimental results obtained from a 0.6pm chip show a programmable frequency response accommodating PDC, IS-54, GSM, IS-95 and WCDMA wireless standards. The proposed filter design achieves dynamic ranges of 90dB for PDC (IS-54), 89dB for GSM, 84dB for IS-95 and 80dB for WCDMA.
AB - A new approach for designing digitally programmable CMOS integrated baseband filters is presented. It utilizes digitally controlled current followers and R-2R ladders to provide precise frequency characteristics that can he tuned over a wide range without components spreading. A 6- order Buttemoth lowpass filter is designed for implementing the baseband channel select filter in an integrated multi-standard CMOS wireless receiver. Experimental results obtained from a 0.6pm chip show a programmable frequency response accommodating PDC, IS-54, GSM, IS-95 and WCDMA wireless standards. The proposed filter design achieves dynamic ranges of 90dB for PDC (IS-54), 89dB for GSM, 84dB for IS-95 and 80dB for WCDMA.
UR - https://www.scopus.com/pages/publications/77956022031
U2 - 10.1109/ICECS.2003.1301939
DO - 10.1109/ICECS.2003.1301939
M3 - Conference contribution
AN - SCOPUS:77956022031
SN - 0780381637
SN - 9780780381636
T3 - Proceedings of the IEEE International Conference on Electronics, Circuits, and Systems
SP - 926
EP - 929
BT - ICECS 2003 - Proceedings of the 2003 10th IEEE International Conference on Electronics, Circuits and Systems
ER -