Programmable all-digital adaptive deskewing and phase shifting

A programmable digital deskewing and phase shifting architecture is presented, supporting a wide range of frequency with a fine granularity of shift control. Proposed design is based on a digital delay line that is distinguished from previous work by area and power efficiency. Proposed design takes less than 0.05 mm
²
in 90 nm and dissipates 54 muW/MHz. Silicon results show three times area saving and four times wider operation frequency compared to alternative implementations.