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PDF NH37M28LB Data sheet ( Hoja de datos )
| Número de pieza | NH37M28LB | |
| Descripción | Oven-Controlled Crystal Oscillator | |
| Fabricantes | NIHON DEMPA KOGYO | |
| Logotipo |  |
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Crystal Oscillator
Model Name NH37M28LB Oven-Controlled Crystal Oscillator (OCXO) for Fixed Communication Equipment
n Main Application
l Mobile communications base station
l Measuring instrument
l Synthesizer
l Exchanger
l High-end router
n Features
l Compact.
l Excellent rise characteristics.
l Excellent phase noise characteristics.
l Excellent aging characteristics.
n Specifications
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Item Measurement condition
Model
NH37M28LB
Standard nominal frequency (MHz)
10
Power supply voltage
DC +5V
Power consumption
3 W max. at the start and 1.3 W max. when stable (+25°C)
Output level
HCMOS (VOL : 0.5V max., VOH : 4.5V min.)
Load
50pF
Duty Cycle (1/2Vcc)
40 to 60%
Operating temperature range
−10 to +70°C
Frequency warm-up characteristic +25°C five minutes after power is on
±50×10−9 max.
Aging
Based on frequency after 72 hours operation
Based on frequency after 72 hours operation
±2×10−9/day max.
±100×10−9/year max.
Frequency / temperature characteristic −10 to +70°C
±10×10−9 max.
Power supply variation characteristics DC +5V±5%
±1×10−9 max.
Frequency control characteristic 0 to +5 V, positive polarity
±1×10−6 min.
n Reference Value
Phase noise (@10MHz)
The value of phase noise changes when the frequency changes.
Offset frequency
1 Hz
10 Hz
100 Hz
1k Hz
10k Hz
dBc/Hz
−80 max.
−120 max.
−140 max.
−145 max.
−150 max.
n Dimensions
36
33.1
5-φ0.8
#3
#2
PIN Connections
#1 VCONT
#2 VREF
#3 VCC
#4 OUTPUT
#5 GND
Terminal number is not printed
STAND OFF
(4 POINT) #4
#1 #5
17.78±0.3
25.4±0.3
Tolerance ±0.5mm
n List of Options
Operating temperature range
Power supply voltage
Nominal frequency (MHz)
−40 to +70°C
DC +3.3V
10 to 40
For details of options, please feel free to contact
our sales representatives.
n List of Ordering Codes
Frequency
(MHz)
10
Ordering Code
NH37M28LB-10M-NSA3423A
The above frequencies are NDK’ s standard frequencies.
Frequencies other than the above are available. Feel free to
contact our sales representatives.
co40_080418_NH37M28LB_e1
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