A 14mW 6.25Gb/s Transceiver in 90nm CMOS for Serial Chip-to-Chip Communications

A power-efficient 6.25Gb/s transceiver in 90nm CMOS for chip-to-chip communication is presented, it dissipates 2.2mW/Gb/s operating at a BER of <10
^-15
over a channel with -15dB attenuation at 3.125GHz. A shared LC-PLL, resonant clock distribution, a low-swing voltage-mode transmitter, a low-power phase rotator, and a software-based CDR and an adaptive equalizer are used to reduce power