Crystal Oscillator
Model Name NH21M13LB
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Main Application
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Mobile communication base station
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Measuring instrument
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Synthesizer
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Exchanger
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High-end router
Oven-Controlled Crystal Oscillator (OCXO) for Fixed Communication Equipment
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Features
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Compact, with a low height. (Compatible with 14-pin Dip)
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Excellent rise characteristics.
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Excellent phase noise characteristics.
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Excellent aging characteristics.
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Excellent short-term stability
(can be used instead of a TCXO because of its higher precision).
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Specifications
Item
Measurement condition
Model
NH21M13LB
10 , 12.8
DC +3.3V
1.7 W max. at the start and 1 W max. when stable (+25°C)
HCMOS (V
OL
: 0.4V max., V
OH
: 2.4V min.)
15pF
45 to 55%
−10 to +70°C
±500×10
−9
max.
±10×10
−9
/day max.
±500×10
−9
/year max.
±100×10
−9
max.
±50×10
−9
max.
Standard nominal frequency (MHz)
Power supply voltage
Power consumption
Output level
Load
Duty Cycle (1/2Vcc)
Operating temperature range
Frequency stability
Frequency warm-up characteristic +25°C five minutes after power is on
Aging
Based on frequency after 30 days operation
Based on frequency after 30 days operation
Frequency / temperature characteristic −10 to +70°C
Power supply variation characteristics DC +3.3V±5%
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Reference Value
Offset frequency
1 Hz
10 Hz
dBc/Hz
−60 max.
−90 max.
−120 max.
−140 max.
−145 max.
Phase noise (@12.8MHz)
100 Hz
1k Hz
10k Hz
The value of phase noise changes when the frequency changes.
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Dimensions
PIN Connections
#1
#7
#8
#14
#1
NC
GND
OUTPUT
VCC
#7
13max
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List of Options
Operating temperature range
Power supply voltage
Nominal frequency (MHz)
−20 to +70°C
DC +5.0V
10 to 20
Terminal number is not printed
For details of options, please feel free to contact
our sales representatives.
19max
21max
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List of Ordering Codes
Frequency
(MHz)
10
12.8
7.62
4.58
Ordering Code
NH21M13LB-10M-NSA3422A
NH21M13LB-12.8M-NSA3422A
0.5max
7.6max
6.35±0.5
#14
12.2
15.24
#8
4-φ0.47±0.1
Tolerance ±0.5mm
The above frequencies are NDK’ s standard frequencies.
Frequencies other than the above are available. Feel free to
contact our sales representatives.
co38_080418_NH21M13LB_e1
NDK [ NIHON DEMPA KOGYO ]
