CFS-206(2003) Ver la hoja de datos (PDF) - CITIZEN ELECTRONICS CO., LTD.
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CFS-206 Datasheet PDF : 2 Pages
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Citizen Crystals and Oscillators - CFS
Page 1 of 2
CFS-308, CFS-206, CFS-145
FEATURES:
z Because of their excellent shock resistance and low power
consumption, the units are ideal for portable equipment.
z Features superior characteristics indigenous to tuning fork-type quartz
crystal units.
APPLICATIONS:
z Used as a clock source for communication equipment, AV equipment,
OA equipment, measuring instruments and various types of clocks
STANDARD SPECIFICATIONS
Item
CFS-308
CFS-206
CFS-145
Conditions
Nominal frequency
f0
32.768KHz
Frequency tolerance deltaf/f0
±20ppm
(25°C)
Reference temperature
Frequency
vs.Temperature
Characteristics
deltaf/f0
See drawing
-10°C to +60°C
Turnover Temperature Tm
25°C ± 5°C
Temperature
coefficient
beta
-0.034 ± 0.006ppm/°C2
Operating temperature
range
Topr
-10°C to +60°C
Storage temperature
range
Tstg
-40°C to +85°C
Quality factor
Q
90,000 TYP. 70,000 TYP 80,000 TYP.
Equivalent series
resistance
R1
35K ohm MAX.
40K ohm
MAX.
Reference temperature
(25°C)
Load capacitance
CL
12.5pF TYP.
8.0pF TYP.
Please specify
Motional capacitance
C1
0.0035pF TYP.
0.0030pF
TYP.
0.0025pF
TYP.
Shunt capacitance
C0
1.60pF TYP 1.35pF TYP. 1.00pF TYP.
Capacitance ratio gamma 460 TYP.
450 TYP.
400 TYP.
Drive level
DL
1 µ W MAX.
Insulation resistane
IR
500M ohm MIN.
DC100V ± 15V
Aging (First year) deltaf/f0
± 3ppm MAX.
25°C ± 3° C
Hermeticity of seal
1 x 10-2 µ Pa·m3 /s MAX.
Shock resistance
± 5ppm MAX.
Drop test of 3 times on a board from 75cm height or shock test of 3000G x 0.3ms x
1/2sin wave x 3 directions
FREQUENCY vs TEMPERATURE CURVE
http://www.citizencrystal.com/quartz/crystals/cfs_d.htm
4/2/2003
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