Design and Implementation of a Second-Order Bandpass Filter for Infrared Receiver
MAI Ri-feng, YU Jun,CHENG Jun-xia, ZHANG Qian-ling (State Key Lab. ASIC & Systems, Fudan University, Shanghai 200433, P.R. China)
An easily integrated bandpass filter (BPF) with (ω 0/Q) orthogonal modification is addressed. Theory of operation of the BPF is analyzed in detail. A second order BPF with ω 0=2πf 0=2π×40 kHz,implemented in Belling's 4 μm bipolar process, is exemplified. This BPF is useful for infrared receiver (IR) applications.
【CateGory Index】： TN713.5