A low-power current-mode transceiver with simultaneous data and clock transmission at 625Mb/s, 3 mW in 1.5 V for mobile applications

Abstract

A current-mode data transceiver for mobile applications is described. This transceiver has a multi-level current transmitter with simple clock recovery and a low-input impedance receiver, and realizes low-voltage swing (about 20 mV) with 150-300 muA drive current at 625 Mbps by differential manner. The transceiver operates with a 1.5-V single power supply, and consumes 3 m\V including transmitter and receiver when simultaneous data and clock transmission at 625 Mbps is achieved through a single differential I/O connecting the transmitter and receiver pair.