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EN 60444-4:1997

Current
Current

The latest, up-to-date edition.

Measurement of quartz crystal unit parameters by zero phase technique in a pi-network - Part 4: Method for the measurement of the load resonance frequency fL, load resonance resistance RL and the calculation of other derived values of quartz crystal units, up to 30 MHz
Published date

17-04-1997

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

Specifies a simple method of measuring load resonance frequency. The method uses the change in resonance frequency which occurs when a load capacitance is inserted in series with the crystal unit.

Committee
CLC/SR 49
DocumentType
Standard
ProductNote
THIS STANDARD IS IDENTICAL TO IEC/TR 60444-4:1988.
PublisherName
European Committee for Standards - Electrical
Status
Current

CEI EN 60122-1 : 2004 QUARTZ CRYSTAL UNITS OF ASSESSED QUALITY - PART 1: GENERIC SPECIFICATION
EN 60444-11:2010 Measurement of quartz crystal unit parameters - Part 11: Standard method for the determination of the load resonance frequency fL and the effective load capacitance CLeff using automatic network analyzer techniques and error correction
BS EN 60444-11:2010 Measurement of quartz crystal unit parameters Standard method for the determination of the load resonance frequency ƒL and the effective load capacitance CLeff using automatic network analyzer techniques and error correction
CEI EN 60444-11 : 2011 MEASUREMENT OF QUARTZ CRYSTAL UNIT PARAMETERS - PART 11: STANDARD METHOD FOR THE DETERMINATION OF THE LOAD RESONANCE FREQUENCY F[L] AND THE EFFECTIVE LOAD CAPACITANCE C[LEFF] USING AUTOMATIC NETWORK ANALYZER TECHNIQUES AND ERROR CORRECTION
BS EN 60122-1 : 2002 QUARTZ CRYSTAL UNITS OF ASSESSED QUALITY - PART 1: GENERIC SPECIFICATION
I.S. EN 60122-1:2002 AMD 1 2018 QUARTZ CRYSTAL UNITS OF ASSESSED QUALITY - PART 1: GENERIC SPECIFICATION
I.S. EN 60444-11:2010 MEASUREMENT OF QUARTZ CRYSTAL UNIT PARAMETERS - PART 11: STANDARD METHOD FOR THE DETERMINATION OF THE LOAD RESONANCE FREQUENCY F[L] AND THE EFFECTIVE LOAD CAPACITANCE C[LEFF] USING AUTOMATIC NETWORK ANALYZER TECHNIQUES AND ERROR CORRECTION
EN 60122-1:2002/A1:2018 QUARTZ CRYSTAL UNITS OF ASSESSED QUALITY - PART 1: GENERIC SPECIFICATION (IEC 60122-1:2002/A1:2017)

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