A Method for Skew-free Distribution of Digital Signals Using Matched Variable Delay Lines

The ability to distribute signals everywhere in a circuit with controlled and known delays is essential in large, high-speed digital systems. We present a technique by which a signal driver can adjust the arrival time of the signal at the end of the wire using a pair of matched variable delay...

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Bibliographic Details
Main Authors: Knight, Thomas, Wu, Henry M.
Language:en_US
Published: 2004
Subjects:
Online Access:http://hdl.handle.net/1721.1/5986
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author Knight, Thomas
Wu, Henry M.
author_facet Knight, Thomas
Wu, Henry M.
author_sort Knight, Thomas
collection MIT
description The ability to distribute signals everywhere in a circuit with controlled and known delays is essential in large, high-speed digital systems. We present a technique by which a signal driver can adjust the arrival time of the signal at the end of the wire using a pair of matched variable delay lines. We show an implemention of this idea requiring no extra wiring, and how it can be extended to distribute signals skew-free to receivers along the signal run. We demonstrate how this scheme fits into the boundary scan logic of a VLSI chip.
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spelling mit-1721.1/59862019-04-10T17:24:36Z A Method for Skew-free Distribution of Digital Signals Using Matched Variable Delay Lines Knight, Thomas Wu, Henry M. clock distribution synchronization skew compensation sphase adjustment The ability to distribute signals everywhere in a circuit with controlled and known delays is essential in large, high-speed digital systems. We present a technique by which a signal driver can adjust the arrival time of the signal at the end of the wire using a pair of matched variable delay lines. We show an implemention of this idea requiring no extra wiring, and how it can be extended to distribute signals skew-free to receivers along the signal run. We demonstrate how this scheme fits into the boundary scan logic of a VLSI chip. 2004-10-04T14:25:28Z 2004-10-04T14:25:28Z 1992-03-01 AIM-1282 http://hdl.handle.net/1721.1/5986 en_US AIM-1282 13 p. 36138 bytes 144481 bytes application/octet-stream application/pdf application/octet-stream application/pdf
spellingShingle clock distribution
synchronization
skew compensation
sphase adjustment
Knight, Thomas
Wu, Henry M.
A Method for Skew-free Distribution of Digital Signals Using Matched Variable Delay Lines
title A Method for Skew-free Distribution of Digital Signals Using Matched Variable Delay Lines
title_full A Method for Skew-free Distribution of Digital Signals Using Matched Variable Delay Lines
title_fullStr A Method for Skew-free Distribution of Digital Signals Using Matched Variable Delay Lines
title_full_unstemmed A Method for Skew-free Distribution of Digital Signals Using Matched Variable Delay Lines
title_short A Method for Skew-free Distribution of Digital Signals Using Matched Variable Delay Lines
title_sort method for skew free distribution of digital signals using matched variable delay lines
topic clock distribution
synchronization
skew compensation
sphase adjustment
url http://hdl.handle.net/1721.1/5986
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