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Improved Zero-Crossing DetectorImproved zero-crossing-detector circuit designed for precisely measuring difference between frequencies of two frequency-standard signal sources. Contains low-bandwidth first-stage amplifier and three limiting amplifiers, each "squares" signal bit more. Crosstalk eliminated and jitter reduced to about 10 to the negative 7th power microseconds.
Document ID
19920000499
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Dick, G. John
(Caltech)
Kuhnle, Paul F.
(Caltech)
Date Acquired
August 15, 2013
Publication Date
September 1, 1992
Publication Information
Publication: NASA Tech Briefs
Volume: 16
Issue: 9
ISSN: 0145-319X
Subject Category
Electronic Systems
Report/Patent Number
NPO-18415
Accession Number
92B10499
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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