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Reference EN 60444-3:1997
Title Measurement of quartz crystal unit parameters by zero phase technique in a pi-network - Part 3: Basic method for the measurement of two-terminal parameters of quartz crystal units up to 200 MHz by phase technique in a pi-network with compensation of the parallel capacitance C0
Project Number 6933
Abstract/Scope Specifies a method based on the -network for the measurement of the parameters of quartz crystal units using an inductance to compensate for the effects of Co at the frequency of the crystal unit. Two possible circuits for compensation of Co are discussed in detail. Has the status of a technical report.


Current Stage code 6060
Current Stage code date 1997-04-16
Current Stage code deadline 1997-12-01
Deadline date for vote  


Order Voucher  


IEC Technical Body IEC/TC 49
Reference Document IEC/TR 60444-3:1986 (EQV)
ICS 31.140 - Piezoelectric and dielectric devices
Keywords Quartz crystal unit; Pi-network; Parallel capacitance C0; Measurement
Note D114/118: CLC/TC 49 disbanded
Special National Condition(s)  


Categories - Aspects
Product Life Cycle


Deadline Date
6060 1997-04-16 1997-12-01 export to doc file  EN
5099 1997-03-11 1997-04-11  
5062 1997-01-27 1997-03-11  
5020 1996-07-30 1996-10-31  
1599 1996-03-05 1996-09-05  
1562 1996-01-25 1996-03-05  
1520 1995-08-10 1995-11-15  
1099 1995-07-04 1995-08-04  

Implementation Dates

date of Ratification (DOR) (1) 1997-03-11
date of Availability (DAV) (2) 1997-04-16
date of Announcement (DOA) (3) 1997-06-01
date of Publication (DOP) (4) 1997-12-01
date of Withdrawal (DOW) (5) 1997-12-01


Superseded by  
Normative reference (6)  

(1) Date of ratification (dor) date when the Technical Board notes the approval of an EN (and HD for CENELEC), from which time the standard may be said to be approved

(2) Date of availability (dav) date when the definitive text in the official language versions of an approved CEN/CENELEC publication is distributed by the Central Secretariat

(3) Date of announcement (doa) latest date by which the existence of an EN (and HD for CENELEC), a TS or a CWA has to be announced at national level

(4) Date of publication (dop) latest date by which an EN has to be implemented at national level by publication of an identical national standard or by endorsement

(5) Date of withdrawal (dow) latest date by which national standards conflicting with an EN (and HD for CENELEC) have to be withdrawn

(6) This list of normative references is purely indicative. The only official list of normative reference is the list of the published standard.