A 7.6mW 2Gb/s proximity transmitter for smartphone-mirrored display applications

Abstract

This paper describes a high data rate proximity transmitter design for high resolution smartphone-mirrored display applications. A 2Gb/s transmitter is designed with a low transmission power of -70dBm/MHz and a wide bandwidth of nearly 3GHz. A digital pre-correction method is employed in the transmitter to mitigate the inter-symbol interference problem. A carrier-based digital pulse shaping and a reconfigurable digital envelope generation methods are employed for robust operation by utilizing 20 phases from a 2GHz phase-locked loop. A 6.5-9.5GHz transmitter implemented in 65nm CMOS achieves the maximum data rate of 2Gb/s, consuming only 7.6mW from a 1V supply.