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DKE German Commission for Electrical, Electronic & Information Technologies of DIN and VDE

DIN EN 60444-4 [CURRENT] references following documents:

Document number Edition Title
DIN IEC 60122-2 1993-09 Quartz crystal units for frequency control and selection; part 2: guide to the use of quartz crystal units for frequency control and selection; identical with IEC 60122-2:1983 More 
EN 60444-1 1997-04 Measurement of quartz crystal unit parameters by zero phase technique in a pi-network - Part 1: Basic method for the measurement of resonance frequency and resonance resistance of quartz crystal units by zero phase technique in a pi-network (IEC 60444-1:1986) More 
EN 60444-2 1997-04 Measurement of quartz crystal unit parameters by zero phase technique in a pi-network - Part 2: Phase offset method for measurement of motional capacitance of quartz crystal units (IEC 60444-2:1980) More 
IEC 60122-1 1976 Quartz crystal units for frequency control and selection. Part 1 : Standard values and test conditions More 
IEC 60122-1 AMD 1 1983 Quartz crystal units for frequency control and selection. Part 1 : Standard values and test conditions More 
IEC 60122-2 1983 Quartz crystal units for frequency control and selection. Part 2 : Guide to the use of quartz crystal units for frequency control and selection More 
IEC 60302 1969 Standard definitions and methods of measurement for piezoelectric vibrators operating over the frequency range up to 30 MHz More 
IEC 60444-1 1986 Measurement of quartz crystal unit parameters by zero phase technique in a π-network; part 1: basic method for the measurement of resonance frequency and resonance resistance of quartz crystal units by zero phase technique in a π-network More 
IEC 60444-2 1980 Measurement of quartz crystal unit parameters by zero phase technique in a π-network; part 2 : phase offset method for measurement of motional capacitance of quartz crystal units More