NDK NH25M22WC Oven-controlled crystal oscillator (ocxo) for fixed communication equipment Datasheet

Crystal Oscillator
Model Name NH25M22WC
Oven-Controlled Crystal Oscillator (OCXO) for Fixed Communication Equipment
n Main Application
l Mobile communication base station
l Exchanger
l Measuring instrument
l High-end router
l Synthesizer
n Features
l Compact, with a low height.
l A surface-mount (SMD) package.
l Reflow soldering is possible.
l Excellent phase noise characteristics.
l Excellent aging characteristics.
n Specifications
Model
Item
Measurement condition
Standard nominal frequency (MHz)
NH25M22WC
10
Power supply voltage
DC +5V
Power consumption
3 W max. at the start and 2 W max. when stable (+25°C)
Output level
HCMOS (VOL : 0.5V max., VOH : 4.5V min.)
Load
15pF
Duty Cycle (1/2Vcc)
40 to 60%
Frequency stability
Operating temperature range
−10 to +70°C
±200×10−9 max.
Frequency warm-up characteristic +25°C five minutes after power is on
Aging
Based on frequency after 30 days operation
±2×10−9/day max.
Based on frequency after 30 days operation
±100×10−9/year max.
Frequency / temperature characteristic −10 to +70°C
±20×10−9 max.
Power supply variation characteristics DC +5V±5%
±10×10−9 max.
Frequency control characteristic 0 to +5 V, positive polarity
±1.0×10−6 min.
n Reference Value
Offset frequency
Phase noise (@10MHz)
dBc/Hz
1 Hz
−70 max.
10 Hz
−100 max.
100 Hz
−120 max.
1k Hz
−135 max.
10k Hz
−135 max.
The value of phase noise changes when the frequency changes.
n Dimensions
n List of Options
PIN Connections
17.8±0.1
#1
#2
#3
#4
#5
#6
#7
25.4±0.2
7.6±0.1
2.5
#2
#3
2.5
#1
VCONT
NC
VCC
OUTPUT
NC
NC
GND
7.8±0.2
22.0±0.2
#7 #6
#5 #4
Tolerance ±0.2mm
Power supply voltage
DC +3.3V
Nominal frequency (MHz)
10 to 20
For details of options, please feel free to contact
our sales representatives.
n List of Ordering Codes
Frequency
(MHz)
Ordering Code
10
NH25M22WC-10M-NSA3419A
The above frequencies are NDK’ s standard frequencies.
Frequencies other than the above are available. Feel free to
contact our sales representatives.
co46_080418_NH25M22WC_e1
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