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CFPT-37 Datasheet, PDF (1/2 Pages) List of Unclassifed Manufacturers – Fixed frequency, surface mount, temperature compensated crystal oscillator
CFPT-37
ISSUE 2 ; 19 OCTOBER 2004
Delivery Options
I Please contact our sales office for details
Package Outline
I 7.0 x 5.0 x 2.0mm SMD
Description
I CFPT-37 is a fixed frequency, surface mount, temperature
compensated crystal oscillator providing a high degree of
frequency stability over a wide temperature range
Supply Voltage
I 3.3V ± 0.3V
Frequency Stability
I Temperature ±0.9ppm
I Supply Voltage Variation ±0.3ppm *
I Load Variation ±0.2ppm
I After Reflow ±1.0ppm
I Calibration Tolerance @ 25°C ±1.0ppm
* Supply Voltage Variation :
>30.0MHz to <40.0MHz, ±0.4ppm
>40.0MHz, ±0.5ppm
Operating Temperature Range
I -20 to 70°C
Supply Current
I 3mA @ 20MHz typical
Output Compatibility
I HCMOS
I Load: 15pF nom.
I VoL: <10% Vs
I VoH: >90% Vs
I Duty Cycle: 45/55%
I Rise Time: 8ns
I Fall Time: 8ns
Ageing
I ±1ppm / year typical in 1st year @ 25°C
Standard Frequencies
I 10, 12.8, 13.0, 14.4, 16.32,16.384, 19.44, 20.0, 26.0,
32.768, 40.0MHz
Other frequencies may be available, please contact our sales
office
Marking
I CMAC and Batch Code
I 37 + Frequency Code + Date Code
Minimum Ordering Information Required
I Frequency + Model Number (example 10.0MHz CFPT-37)
Environmental Specification
I Storage Temperature Range -55 to 125°C
I Vibration: IEC 60068-2-6 Test Fc Procedure B4, 10-60Hz
1.5mm displacement, at 98.1m/s2, 30 minutes in each
of three mutually perpendicular axes at 1 octave per minute
I Shock: IEC 60068-2-27 Test Ea, 980m/s2 acceleration for
6ms duration, 3 shocks in each direction along three
mutually perpendicular axes
I Solderability: MIL-STD-202, Method 208, Category 3
Outline in mm
7.0±0.15
Pad Connections
1.N/C
2.GND
3.Output
4.+Vs
T1, T2, T3, T4 N/C
5.08
1 T1 2
T4 T2
4 T3 3
1.04
1.4
2.0
Solder pad layout
5.08
1.5
Output Waveform
tf
90% (VoH-VoL)
tr
+Vs
VoH
50% (VoH-VoL)
10% (VoH-VoL)
VoL
0V
t
T
Duty cycle = t x 100(%)
T