A wireless real-time on-chip bus trace system using quasi-synchronous parallel inductive coupling transceivers

A 480 Mb/s wireless real-time bus trace system with a pulse-based inductive coupling channel array was developed using an 0.25 mum CMOS process. The size and pitch of the inductor array are determined by numerical calculation to optimize the tradeoff between the channel coupling, crosstalk, and alignment tolerance. A low-power quasi-synchronous system is proposed to obtain an enough timing margin for RX pulse detection under the presence of the clock skew. Power consumption is scalable to the data rate in this system.