Keywords: Delay Locked Loop (DLL) Precision Time Base.

Abstract: A delay locked loop clock circuit employs an analog control loop for generating picosecond-accurate clock delays. Eliminates error-prone high-speed digital phase comparators employed in prior art approaches for substantially improved timing accuracy.

Applications include a timing system for automotive backup and collision warning radars, precision radar and laser rangefinders for fluid level sensing and robotics, precision radiolocation systems, and universal object/obstacle detection and ranging.