Implementation of 2nd Order CMOS Gm-C IF Tuning Filter Operating at GSM and FM Band: Wireless System with Monte Carlo Analysis
Resumo
Designed folded cascode OTA has a 52 dB DC gain and provides a unit gain bandwidth of around 400 MHz. Design of CMOS Gm-C 2nd order biquad filter implementation using OTA, operating at center frequency 70 and 10.6 MHz. The filter can be operated at center frequency of 70 MHz under 1.8 V power supply and is suitable for intermediate frequency (IF) range in most of the wireless systems operating at 900 MHz GSM and at 88–108 MHz FM Keywords: Folded cascode OTA, gm/ID methodology, active filters, S-parameter, smith chart, (OTA-C) filters, GSM, FM
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