NH25M22WD

Crystal Oscillator
Model Name NH25M22WD
Oven-Controlled Crystal Oscillator (OCXO)
for Fixed Communication Equipment
■ Main Application
● Mobile communication base station ● Exchanger
● Measuring instrument ● Synthesizer ● High-end router
■ Features
● Compact, with a low height.
● A surface-mount (SMD) package. Reflow soldering is possible.
● Excellent phase noise characteristics. (12.8MHz : -130dBc/Hz at 1kHz)
● Excellent long-term frequency stability.(±500×10-9/year)
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En
■ Specifications
Model
Item Measurement condition
Nominal frequency (MHz)
NH25M22WD
12.8
Supply voltage [VCC] (V)
+3.3 ±5 %
at start
Power consumption (W)
Max. 2.7
when stable (+25 °C)
Max. 1
HCMOS level (VOL Max. 0.4 V, VOH Min. 2.4 V)
Output voltage
40 to 60
at 1/2 VCC
Load impedance (pF)
Operating temperature range (°C)
Storage temperature range (°C)
of
Symmetry (%)
15
−10 to +70
−40 to +85
Stabilization Time (Frequency Stability) within
±500 ×10−9 after power on at +25°C ,
based on frequency after 60minutes operation.
Stabilization time
12
e
lif 20
-
Based on frequency after 30 days operation
Max. ±10×10−9/day
Based on frequency after 30 days operation
Max. ±500×10−9/year
D
Long-term frequency stability
Max. 3 minutes
Frequency/Temperature characteristics
−10 to +70 °C
Frequency/Voltage coefficient
VCC +3.3 V ± 5 %
Phase noise (at 12.8 MHz)
Max. ±50×10−9
ec
■ Reference Value
Max. ±300×10−9
Offset frequency
dBc/Hz
1 Hz
−60
10 Hz
−90
100 Hz
−120
1 kHz
−130
10 kHz
−140
The value of phase noise changes when the frequency changes.
■ Dimensions
■ List of Options
mm
7.62 ± 0.1
25.4
Terminal land connections
8.9±0.1
NC
NC
VCC
OUTPUT
NC
NC
GND
10
(1.0)
17.8 ± 0.1
22
#1
#2
#3
#4
#5
#6
#7
2.5
#7 #6
#2
#3
#5 #4
+5
10 to 38.88
For details of options, please feel free to contact
our sales representatives.
■ List of Ordering Codes
Nominal
frequency
(MHz)
12.8
Ordering Code
NH25M22WD-12.8M-NSA3418A
The above frequencies are NDK’s standard frequencies.
Frequencies other than the above are available. Feel free to
contact our sales representatives.
2.5
#1
Power supply voltage [VCC] (V)
Nominal frequency range (MHz)
Tolerance ±0.2 mm
ocxo13_110926_NH25M22WD_e