2.9 A 2GHz 244fs-resolution 1.2ps-Peak-INL edge-interpolator-based digital-to-time converter in 28nm CMOS
Digital-to-time converters (DTC) generate a clock with a time delay (or phase shift) based on a digital input code. They can be used in clock-and-data-recovery (CDR) circuits [1,2], in the feedback or reference path of a phase-locked loop (PLL) [3,4] or as direct phase modulators in outphasing trans...
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Published in | 2016 IEEE International Solid-State Circuits Conference (ISSCC) pp. 52 - 54 |
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Main Authors | , , , , , , , |
Format | Conference Proceeding |
Language | English |
Published |
IEEE
01.01.2016
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Subjects | |
Online Access | Get full text |
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Summary: | Digital-to-time converters (DTC) generate a clock with a time delay (or phase shift) based on a digital input code. They can be used in clock-and-data-recovery (CDR) circuits [1,2], in the feedback or reference path of a phase-locked loop (PLL) [3,4] or as direct phase modulators in outphasing transmitters (OT) [5]. While DTCs in PLLs often operate close to the reference oscillator frequency, CDR and OT DTCs are required to operate at frequencies in the GHz range. DTCs are often built using a multistage segmented architecture, employing separate coarse and fine delay tuning. |
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ISBN: | 1467394661 9781467394666 |
ISSN: | 2376-8606 |
DOI: | 10.1109/ISSCC.2016.7417902 |