Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

A sub-picosecond digitally-controlled phase delay

Journal Article · · Journal of Instrumentation

The use of precision timing measurements will be a major tool at the HL-LHC, where it will be used to suppress pile-up and to search for long-lived particles. To control a reference clock with sub-picosecond accuracy, we have fabricated in the TSMC 65 nm process a digitally controlled phase shifter. It is composed of a chain of 66 cells, each with a digitally controlled planar wave guide with either a short or long delay. With this a reference clock’s phase can be controlled to a precision of 200 fs with dynamic range of 12 ps.

Research Organization:
Univ. of Minnesota, Minneapolis, MN (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
DOE Contract Number:
SC0020185
OSTI ID:
1979431
Journal Information:
Journal of Instrumentation, Vol. 17, Issue 03; ISSN 1748-0221
Publisher:
Institute of Physics (IOP)
Country of Publication:
United States
Language:
English

References (4)

A Precision Pure Clock Distribution System conference March 2020
Optical Fiber Delay-Line Signal Processing journal March 1985
A 1–20 GHz 400 ps true-time delay with small delay error in 0.13 µm CMOS for broadband phased array antennas conference May 2015
Novel Trombone Topology for Wideband True-Time-Delay Implementation journal April 2020

Similar Records

A sub-picosecond digital clock monitoring system
Journal Article · 2023 · Journal of Instrumentation · OSTI ID:2420157

A CMOS delay locked loop and sub-nanosecond time-to-digital converter chip
Conference · 1995 · OSTI ID:197825

A CMOS delay locked loop and sub-nanosecond time-to-digital converter chip
Journal Article · 1996 · IEEE Transactions on Nuclear Science · OSTI ID:276487