• NBN EN 60444-4 : 1997

    Current The latest, up-to-date edition.

    METING VAN DE PARAMETERS VAN KWARTSKRISTALLEN DOOR MIDDEL VAN FASENULTECHNIEK IN EEN PI-NETWERK - DEEL 4 : METHODE VOOR HET METEN VAN DE RESONANTIEFREQUENTIE BIJ CAPACITIEVE BELASTING FL, DE RESONANTIEWEERSTAND BIJ CAPACITIEVGE BELASTING RL EN VOOR DE BEREKENING VAN ANDERE AFGELEIDE WAARDEN VAN KWARTSKRISTALLEN, TOT 30 MHZ

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    Published date:  12-01-2013

    Publisher:  Belgian Standards

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    Table of Contents - (Show below) - (Hide below)

    Committees responsible
    National foreword
    Method
    1 Scope
    2 Measuring circuit
    3 Method of measurement
    Appendix
    A Recommendations regarding the use of load capacitors
    Figures
    A1 Typical load capacitor with carrier
    A2 Method of insertion of load capacitor into pi-network
    A3 Circuit diagram of pi-network including load
        capacitor C1
    A4 Load capacitance inaccuracy as a function of frequency,
        for a load capacitance of 30 pF inclusive of calibration
        inaccuracy and residual inductance effects (Worst case
        situation)
    A5 Relative measurement error of fL versus crystal
        pulling sensitivity for various frequencies at a load
        capacitance of 30 pF
    A6 Relative measurement error of R1 versus frequency, for
        various values of C1
    A7 Relative measurement error of Cl as a function of
        frequency
    A8 Relative measurement error of C1 as a function of
        C1 for various frequency measurement errors C0 =
        5 pF; CL1 = 15 pF; CL2 = 30 pF
    A9 Relative measurement error of C1 as a function of
        C1 for various values of quality factor Q C0 = 3 pF;
        CL1 = 15pF; CL2 = 30 pF
    Annex ZA (normative) Normative references to international
    publications with their corresponding European publications

    Abstract - (Show below) - (Hide below)

    Defines a simple method for measurement of load resonance frequency fL and load resonance resistance RL, in the frequency range not in excess of 30 MHz. Permits calculation of load resonance frequency ranges and pulling sensitivity as laid down in IEC 122-1, Amd 1.

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    Document Type Standard
    Publisher Belgian Standards
    Status Current
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