Compensation of undesired channel effects by frequency domain optimization of pre-emphasis filter for over Gbps signaling

A design methodology has been proposed to reduce the undesired channel effects including both the high frequency loss and the resonance coupled from power/ground planes. FIR pre-emphasis filter was used, and the optimization of the filter has been conducted in frequency domain. The effect of the designed pre-emphasis filter is also verified by time-domain simulations of 2Gbps eye pattern. The signal distortion by undesired channel effect is significantly mitigated with applying the pre-emphasis filter.