A 1.3pJ/b inductive coupling transceiver with adaptive gain control for Cm-range 50Mbps data communication

Abstract

A 1.3pJ/b inductive coupling transceiver is proposed for Cm-range multimedia data transmission in mobile device applications. Its Transmission Time Control (TTC) scheme and Adaptive Gain Control (AGC) scheme reduce the energy consumption below to 1.3pJ/b. Inductor with self-resonance frequency above 200MHz achieves the data rate over 50Mbps. The receiver sensitivity can be enhanced to increase the communication distance up to 7cm by relative magnitude comparison between two nodes of the receiver inductor. The transceiver consumes only 65μW in total with 1V supply.