Title:
PHASE FREQUENCY TO DIGITAL CONVERTER
Document Type and Number:
WIPO Patent Application WO/2010/041163
Kind Code:
A3
Abstract:
A circuit arrangement is described comprising a first receiver configured to receive a first input signal, a second receiver configured to receive a second input signal, a first signal generator configured to generate a first pulse signal, a second signal generator configured to generate a second pulse signal, wherein a delay between a rising edge of the first pulse signal and a rising edge of the second pulse signal is proportional to a difference between the first input signal and the second input signal, a first converter configured to convert the first pulse signal to a first digital number proportional to a width of the first pulse signal, a second converter configured to convert the second pulse signal to a second digital number proportional to a width of the second pulse signal, wherein at least one of the first converter and the second converter comprises a cascade of at least two converter stages, wherein each converter stage of the at least two converter stages is configured to propagate and shrink the respective pulse signal. Also a corresponding method is described.
Inventors:
HERVE MARIE (FR)
Application Number:
PCT/IB2009/054211
Publication Date:
July 08, 2010
Filing Date:
September 25, 2009
Export Citation:
Assignee:
NXP BV (NL)
HERVE MARIE (FR)
HERVE MARIE (FR)
International Classes:
G01R25/08; H03D13/00; H03L7/085; H03M1/50; G04F10/06; H03K5/159
Foreign References:
| US20060171495A1 | 2006-08-03 | |||
| US20070075785A1 | 2007-04-05 | |||
| US6384654B1 | 2002-05-07 |
Other References:
RAHKONEN T ET AL: "PULSEWIDTH MEASUREMENTS USING AN INTEGRATED PULSE SHRINKING DELAY LINE", PROCEEDINGS OF THE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS. NEW ORLEANS, MAY 1 - 3, 1990; [PROCEEDINGS OF THE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS], NEW YORK, IEEE, US, vol. 1 OF 04, 1 May 1990 (1990-05-01), pages 578 - 581, XP000166901
JÓZEF KALISZ ET AL: "Review of methods for time interval measurements with picosecond resolution; Methods for time interval measurements", METROLOGIA, INSTITUTE OF PHYSICS PUBLISHING, BRISTOL, GB LNKD- DOI:10.1088/0026-1394/41/1/004, vol. 41, no. 1, 1 February 2004 (2004-02-01), pages 17 - 32, XP020019859, ISSN: 0026-1394
JÓZEF KALISZ ET AL: "Review of methods for time interval measurements with picosecond resolution; Methods for time interval measurements", METROLOGIA, INSTITUTE OF PHYSICS PUBLISHING, BRISTOL, GB LNKD- DOI:10.1088/0026-1394/41/1/004, vol. 41, no. 1, 1 February 2004 (2004-02-01), pages 17 - 32, XP020019859, ISSN: 0026-1394
Attorney, Agent or Firm:
KROTT, Michel Willy François Maria et al. (Intellectual Property & Licensing DepartmentHigh Tech Campus 32, AE Eindhoven, NL)
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