NH21M13LB

Crystal Oscillator
Model Name NH21M13LB
Oven-Controlled Crystal Oscillator (OCXO)
for Fixed Communication Equipment
■ Main Application
● Base stations for Mobile communication system
● Measuring instrument
● Synthesizer
● Exchanger
● High-end router
■ Features
● Compact, with a low height. (Compatible with 14-pin Dip)
● Excellent short-term stability (can be used instead of a TCXO because of its
higher precision).
● Excellent phase noise characteristics. (12.8MHz : -140dBc/Hz at 1kHz)
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● Excellent long-term frequency stability.(±500×10-9/year)
■ Specifications
Model
Item
Measurement condition
Nominal frequency (MHz)
NH21M13LB
10, 12.8
Supply voltage [VCC] (V)
+3.3 ±5 %
at start
Power consumption (W)
Max. 1.7
when stable (+25 °C)
Max. 1
HCMOS level (VOL Max. 0.4 V, VOH Min. 2.4 V)
Output voltage
Symmetry (%)
40 to 60
at 1/2 VCC
Load impedance (pF)
15
Operating temperature range (°C)
−10 to +70
Storage temperature range (°C)
−40 to +85
Stabilization time
Long-term frequency stability
Stabilization Time (Frequency Stability) within
±500 ×10−9 after power on at +25°C ,
based on frequency after 60minutes operation.
Max. 5 minutes
Based on frequency after 30 days operation
Max. ±10×10−9/day
Based on frequency after 30 days operation
Max. ±500×10−9/year
Frequency/Temperature characteristics
−10 to +70 °C
Max. ±100×10−9
Frequency/Voltage coefficient
VCC +3.3 V ±5 %
Max. ±50×10−9
■ Reference Value
Phase noise (at 12.8 MHz)
Offset frequency
dBc/Hz
1 Hz
−60
10 Hz
−90
100 Hz
−120
1 kHz
−140
10 kHz
−145
The value of phase noise changes when the frequency changes.
■ Dimensions
■ List of Options
Pin connections
#1
#7
#8
#14
4 - φ0.47 ± 0.1
#1
NC
GND
OUTPUT
VCC
Terminal number is not printed
#14
12.2
15.24
#8
Operating temperature range (°C)
Nominal frequency range (MHz)
-3-
+5
10 to 20
For details of options, please feel free to contact
our sales representatives.
■ List of Ordering Codes
12.8
Tolerance ±0.5 mm
−20 to +70
Power supply voltage [VCC] (V)
Nominal
frequency
(MHz)
10
4.58
7.62
#7
6.35 ± 0.5
19max
21max
7.6max
0.5max
13max
mm
Ordering Code
NH21M13LB-10M-NSA3422A
NH21M13LB-12.8M-NSA3422A
The above frequencies are NDK’s standard frequencies.
Frequencies other than the above are available. Feel free to
contact our sales representatives.
12A_1023_NH21M13LB_e