A 5Gb/s Transmitter with Reflection Cancellation for Backplane Transceivers

We present a 5Gb/s transmitter that cancels the reflected signals from any impedance discontinuity located at up to 64UI away from the transmitter and spread over 8UI interval. Measured results from our 0.11mum CMOS design reveal a 150mV eye-opening, from a nearly closed eye, when reflection cancellation is activated. The design consumes 510muA for the PLL operation, 60mA for data generation, and 50mA for data transmission, all from a 1.2V supply