A Ping-Pong Methodology for Boosting the Resilience of Cell-Based Delay-Locked Loop

In this paper, we present a cell-based delay-locked loop (DLL) with an enhanced continuous tracking range. The main contribution is a novel delay line architecture called ping-pong delay line, making it highly resilient to process and temperature variation. In such a DLL design, two cell-based delay...

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Main Authors: Zheng-Hong Zhang, Wei Chu, Shi-Yu Huang
Format: Article
Language:English
Published: IEEE 2019-01-01
Series:IEEE Access
Subjects:
Online Access:https://ieeexplore.ieee.org/document/8771113/
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author Zheng-Hong Zhang
Wei Chu
Shi-Yu Huang
author_facet Zheng-Hong Zhang
Wei Chu
Shi-Yu Huang
author_sort Zheng-Hong Zhang
collection DOAJ
description In this paper, we present a cell-based delay-locked loop (DLL) with an enhanced continuous tracking range. The main contribution is a novel delay line architecture called ping-pong delay line, making it highly resilient to process and temperature variation. In such a DLL design, two cell-based delay lines are incorporated in a way that they exchange their role of command dynamically like in a ping-pong game, and therefore the joint ping-pong delay line can react to severe environmental changes over a very wide range without disruption to the system's operation. The post-layout simulation using a 90-nm complimentary metal-oxide silicon (CMOS) process technology has demonstrated its advantages. A DLL using such a feature can operate reliably even under an extremely hostile environment when the supply voltage drops from 1 to 0.9 V within a timeframe of 4us.
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spelling doaj.art-01183442e5f5412aa67df512978bcec32022-12-21T19:45:55ZengIEEEIEEE Access2169-35362019-01-017979289793710.1109/ACCESS.2019.29307758771113A Ping-Pong Methodology for Boosting the Resilience of Cell-Based Delay-Locked LoopZheng-Hong Zhang0Wei Chu1Shi-Yu Huang2https://orcid.org/0000-0002-3721-987XElectrical Engineering Department, National Tsing Hua University, Hsinchu, TaiwanElectrical Engineering Department, National Tsing Hua University, Hsinchu, TaiwanElectrical Engineering Department, National Tsing Hua University, Hsinchu, TaiwanIn this paper, we present a cell-based delay-locked loop (DLL) with an enhanced continuous tracking range. The main contribution is a novel delay line architecture called ping-pong delay line, making it highly resilient to process and temperature variation. In such a DLL design, two cell-based delay lines are incorporated in a way that they exchange their role of command dynamically like in a ping-pong game, and therefore the joint ping-pong delay line can react to severe environmental changes over a very wide range without disruption to the system's operation. The post-layout simulation using a 90-nm complimentary metal-oxide silicon (CMOS) process technology has demonstrated its advantages. A DLL using such a feature can operate reliably even under an extremely hostile environment when the supply voltage drops from 1 to 0.9 V within a timeframe of 4us.https://ieeexplore.ieee.org/document/8771113/Cell-based DLLdelay lineping-pongsegment jumping
spellingShingle Zheng-Hong Zhang
Wei Chu
Shi-Yu Huang
A Ping-Pong Methodology for Boosting the Resilience of Cell-Based Delay-Locked Loop
IEEE Access
Cell-based DLL
delay line
ping-pong
segment jumping
title A Ping-Pong Methodology for Boosting the Resilience of Cell-Based Delay-Locked Loop
title_full A Ping-Pong Methodology for Boosting the Resilience of Cell-Based Delay-Locked Loop
title_fullStr A Ping-Pong Methodology for Boosting the Resilience of Cell-Based Delay-Locked Loop
title_full_unstemmed A Ping-Pong Methodology for Boosting the Resilience of Cell-Based Delay-Locked Loop
title_short A Ping-Pong Methodology for Boosting the Resilience of Cell-Based Delay-Locked Loop
title_sort ping pong methodology for boosting the resilience of cell based delay locked loop
topic Cell-based DLL
delay line
ping-pong
segment jumping
url https://ieeexplore.ieee.org/document/8771113/
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