A sub-picosecond digitally-controlled phase delay

Journal Article · 01 March 2022 · Journal of Instrumentation

DOI:https://doi.org/10.1088/1748-0221/17/03/c03014· OSTI ID:1979431

Dehmeshki, D. ^[1]; Frahm, E.; Rusack, R.; Saradhy, R.; Tousi, Y.

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1. OSTI

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, Journal Name: Journal of Instrumentation Journal Issue: 03 Vol. 17; ISSN 1748-0221
• Publisher: Institute of Physics (IOP)
• Country of Publication: United States
• Language: English

Related Subjects

Instruments & Instrumentation