A High Performance Multi-Channel Time-Interval Counter With an Integrated GPS Receiver

Andrew N. Novick, Michael A. Lombardi, Victor S. Zhang, Anthony Carpentier

Abstract:	A new time-interval counter has been developed for PC-based time and frequency measurement applications. The counter incorporates a multi-channel design, allowing concurrent measurements of up to 11 input signals. Each input signal can be compared to a reference oscillator or to the signal from an integrated GPS receiver. Other features include 24-bit programmable dividers that allow the measurement of any frequency from 1 Hz to 167.77 MHz, single-shot resolution of < 30 ps, and an Allan deviation [o,(r)] of 2.5x10^-l4 at r = 1,024 s during a self-test. A discussion of the counter design, the theory of operation, measurement performance, and potential applications in time and frequency metrology is included.
Published in:	Proceedings of the 31th Annual Precise Time and Time Interval Systems and Applications Meeting December 7 - 9, 1999 Marriott's Laguna Cliffs Resort Dana Point, California
Pages:	561 - 568
Cite this article:	Novick, Andrew N., Lombardi, Michael A., Zhang, Victor S., Carpentier, Anthony, "A High Performance Multi-Channel Time-Interval Counter With an Integrated GPS Receiver," Proceedings of the 31th Annual Precise Time and Time Interval Systems and Applications Meeting, Dana Point, California, December 1999, pp. 561-568.
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