A Clock-Phase Reuse Technique for Discrete-Time Bandpass Filters

In this article, we apply a new clock-phase reuse technique to a discrete-time infinite impulse response (IIR) complex-signaling bandpass filter (BPF). This leads to a deep improvement in filtering, especially the stopband rejection, while maintaining the area, sampling frequency, and the number of clock phases and their pulsewidths. Fabricated in 28-nm CMOS, the proposed BPF is highly tuneable an...