Crystal Oscillator
Oven-Controlled Crystal Oscillator (OCXO) for Fixed Communication Equipment
Model Name NH21M13LB
Main Application
l Mobile communication base station
l Measuring instrument
l Synthesizer
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l Exchanger
l High-end router
Features
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l Compact, with a low height. (Compatible with 14-pin Dip)
l Excellent rise characteristics.
l Excellent phase noise characteristics.
l Excellent aging characteristics.
l Excellent short-term stability
(can be used instead of a TCXO because of its higher precision).
Specifications
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Model
NH21M13LB
Item
Measurement condition
10 , 12.8
DC +3.3V
Standard nominal frequency (MHz)
Power supply voltage
Power consumption
Output level
Load
Duty Cycle (1/2Vcc)
Operating temperature range
1.7 W max. at the start and 1 W max. when stable (+25°C)
HCMOS (VOL : 0.4V max., VOH : 2.4V min.)
15pF
45 to 55ꢀ
−10 to +70°C
−9
500ꢁ10 max.
Frequency warm-up characteristic +25°C five minutes after power is on
−9
10ꢁ10 /day max.
Based on frequency after 30 days operation
Based on frequency after 30 days operation
Aging
−9
500ꢁ10 /year max.
−9
100ꢁ10 max.
Frequency / temperature characteristic −10 to +70°C
Power supply variation characteristics DC +3.3V 5ꢀ
−9
50ꢁ10 max.
Reference Value
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Offset frequency
dBc/Hz
−60 max.
−90 max.
−120 max.
−140 max.
−145 max.
1 Hz
10 Hz
Phase noise (@12.8MHz)
100 Hz
1k Hz
10k Hz
The value of phase noise changes when the frequency changes.
List of Options
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Dimensions
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Operating temperature range
Power supply voltage
Nominal frequency (MHz)
−20 to +70°C
DC +5.0V
10 to 20
PIN Connections
#1
#7
NC
GND
#8
OUTPUT
VCC
For details of options, please feel free to contact
our sales representatives.
#14
Terminal number is not printed
#1
19max
21max
#7
List of Ordering Codes
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Frequency
(MHz)
10
12.8
Ordering Code
NH21M13LB-10M-NSA3422A
NH21M13LB-12.8M-NSA3422A
#8
#14
12.2
The above frequencies are NDK’ s standard frequencies.
Frequencies other than the above are available. Feel free to
contact our sales representatives.
15.24
4-φ0.47 0.1
Tolerance 0.5mm
co38_080418_NH21M13LB_e1