Title :
A new 246 MHz active LC band-pass filter for IF sub-sampling GSM receivers
Author :
Elmala, Mostafa A I ; Mostafa, Mohamed A I ; Embabi, Sherif H K
Author_Institution :
Electr. Eng. Dept, Texas A&M Univ., USA
fDate :
6/23/1905 12:00:00 AM
Abstract :
A 246 MHz bandpass filter is implemented using a new active inductor design. The filter is implemented for a GSM IF sub-sampling receiver, however, it can be also used for dual-mode GSM-WCDMA receivers. The active inductor is implemented using on-chip capacitance and two negative transconductance differential cells. The filter is implemented as a fourth-order prototype, using narrow band approximation. The BW of the filter is 10 MHz, with automatic tuning for Q and center frequency. The design was fabricated in a 0.35 μm CMOS process. Input 1 dB compression point equals -19 dBm. The power consumption is 33 mW for 3 V supply
Keywords :
CMOS analogue integrated circuits; Q-factor; VHF filters; active filters; band-pass filters; cellular radio; circuit tuning; radio receivers; 0.35 micron; 10 MHz; 246 MHz; 3 V; 33 mW; CMOS process; IF subsampling GSM receivers; active LC band-pass filter; active inductor design; automatic tuning; dual mode GSM-WCDMA receivers; fourth-order prototype; negative transconductance differential cells; on-chip capacitance; Active inductors; Band pass filters; CMOS process; Capacitance; Frequency; GSM; Narrowband; Prototypes; Transconductance; Tuning;
Conference_Titel :
ASIC/SOC Conference, 2001. Proceedings. 14th Annual IEEE International
Conference_Location :
Arlington, VA
Print_ISBN :
0-7803-6741-3
DOI :
10.1109/ASIC.2001.954678
