A 1.5 V 86 mW/ch 8-channel 622-3125 Mb/s/ch CMOS SerDes macrocell with selectable mux/demux ratio

An 8-channel serial link transceiver realizes 20 Gb/s full duplex total I/O throughput with <700 mW dissipation from a 1.5 V supply and occupies 2 mm/sup 2/ in 0.16 /spl mu/m CMOS. An analog DLL allows tracking of frequency offset up to 400 ppm. The receiver, employing an integrate-and-dump front-end, achieves 30 mVpp sensitivity.