A performance evaluation of an RC polyphase filter with parasitic elements

In this paper, we discuss evaluation results on parasitic effects in RC polyphase filters, where those parasitics appear in LSI implementation. Parasitic capacitance is well known as typical parasitic element, and it degrades circuit performance. We verify performance of an RC polyphase filter with parasitic capacitance in aspects of filter response and Packet Error Rate(PER). We also discuss filter performance degradation due to parasitic resistors connected in series with capacitors and its layout result in 90 nm process.