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A new 246 MHz active LC band-pass filter for IF sub-sampling GSM receivers

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3 Author(s)
Elmala, M.A.I. ; Electr. Eng. Dept, Texas A&M Univ., USA ; Mostafa, M.A.I. ; Embabi, S.H.K.

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

Published in:

ASIC/SOC Conference, 2001. Proceedings. 14th Annual IEEE International

Date of Conference: