NH25M22WC

Crystal Oscillator
Model Name NH25M22WC
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. (-135dBc/Hz at 1kHz)
d
En
● Excellent long-term frequency stability.(±100×10-9/year)
■ Specifications
Model
Item Measurement condition
Nominal frequency (MHz)
NH25M22WC
10
Supply voltage [VCC] (V)
+5 ±5 %
at start
Power consumption (W)
Max. 3
when stable (+25 °C)
Max. 2
HCMOS level (VOL Max. 0.5 V, VOH Min. 4.5 V)
Output voltage
40 to 60
at 1/2 VCC
fe 1
Li -20
of ay
M
Symmetry (%)
Load impedance (pF)
15
Operating temperature range (°C)
−10 to +70
Storage temperature range (°C)
−40 to +85
Stabilization Time (Frequency Stability) within
±200 ×10−9 after power on at +25°C ,
based on frequency after 60minutes operation.
Stabilization time
Long-term frequency stability
Max. 5 minutes
Based on frequency after 30 days operation
Max. ±2×10−9/day
Based on frequency after 30 days operation
Max. ±100×10−9/year
Frequency/Temperature characteristics
−10 to +70 °C
Max. ±20×10−9
Frequency/Voltage coefficient
VCC +5V ± 5 %
Max. ±10×10−9
Frequency control range
Vcont +2.5 ± 2.5 V
Min. ±1×10−6
Frequency change polarity
Positive
■ Reference Value
Offset frequency
Phase noise (at 10 MHz)
dBc/Hz
1 Hz
−70
10 Hz
−100
100 Hz
−120
1 kHz
−135
10 kHz
−135
The value of phase noise changes when the frequency changes.
■ Dimensions
■ List of Options
7.6 ± 0.1
7.8 ± 0.2
22.0 ± 0.2
2.5
#7 #6
#2
Terminal land connections
#1
#2
#3
#4
#5
#6
#7
Vcont
NC
VCC
OUTPUT
NC
NC
GND
#3
2.5
#1
mm
#5 #4
Tolerance ±0.5 mm
Power supply voltage [VCC] (V)
+3.3
Nominal frequency range (MHz)
10 to 20
For details of options, please feel free to contact
our sales representatives.
3
25.4 ± 0.2
17.8 ± 0.1
■ List of Ordering Codes
Nominal
frequency
(MHz)
10
Ordering Code
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.
ocxo12_110922_NH25M22WC_e