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In this paper, we describe an automatic tuning scheme for G/sub m/-C filters. It employs an integrator as master rather than commonly used VCO (Voltage Controlled Oscillator) or VCF (Voltage Controlled Filter). This proposed tuning scheme is implemented into a +/-1.5 V 10 mW 4 MHz 5-th order elliptic low-pass filter.
Date of Conference: 13-15 June 1996