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IEICE TRANSACTIONS on Fundamentals

Vernier Caliper and Equivalent-Signal Sampling for Built-In Jitter Measurement System

Shu-Yu JIANG, Chan-Wei HUANG, Yu-Lung LO, Kuo-Hsing CHENG

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Summary :

Several problems in built-in-jitter-measurement (BIJM) system designs have been identified in recent years. The problems are associated with the external low-jitter sampling clock, chip area, timing resolution, or the measurement range via the process voltage temperature (PVT) variation effect. In this work, there are three proposed approaches and one conventioanl method that improve BIJM systems. For the system level, a proposed real equivalent-signal sampling technique is utilized to clear the requirement of the external low-jitter sampling clock. The proposed Vernier caliper structure is applied to reduce chip area cost for the designated timing resolution. At the circuit level, the proposed auto focus technique eliminates the PVT variation effect for the measurement range. The stepping scan technique is the conventional method that employed to minimize the area cost of counter circuits. All of these techniques were implemented in the 0.35 µm CMOS process. Furthermore, these techniques are successfully verified in 14 ps circuit resolution and a 500*750 µm chip area for the 100-400 MHz measurement range.

Publication
IEICE TRANSACTIONS on Fundamentals Vol.E92-A No.2 pp.389-400
Publication Date
2009/02/01
Publicized
Online ISSN
1745-1337
DOI
10.1587/transfun.E92.A.389
Type of Manuscript
Special Section PAPER (Special Section on Analog Circuit Techniques and Related Topics)
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