Oven-Controlled Crystal Oscillator
Crystal Oscillator
Model Name NH25M22WB
www.DataSheet4U.com
Oven-Controlled Crystal Oscillator (OCXO) for Fixed Communi...
Description
Crystal Oscillator
Model Name NH25M22WB
www.DataSheet4U.com
Oven-Controlled Crystal Oscillator (OCXO) for Fixed Communication Equipment
n Main Application
l Mobile communication base station l Measuring instrument l Synthesizer l Exchanger l High-end router
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
Measurement condition Standard nominal frequency (MHz) Power supply voltage Power consumption Output level Load Duty Cycle (1/2Vcc) Operating temperature range Frequency stability Aging Based on frequency after 30 days operation Based on frequency after 30 days operation Item Model NH25M22WB
19.2 DC +3.3V 2.7 W max. at the start and 1.4 W max. when stable (+25°C) HCMOS (VOL : 0.4V max., VOH : 2.4V min.) 10kΩ//30pF 45 to 55% −10 to +70°C ±2×10−9/day max. ±100×10−9/year max. ±20×10−9 max. ±5×10−9 max. ±1.0×10−6 min.
Frequency / temperature characteristic −10 to +70°C Power supply variation characteristics DC +3.3V±5% Frequency control characteristic 0 to +2.8 V, positive polarity
n Reference Value
Offset frequency
1 Hz 10 Hz 100 Hz 1k Hz 10k Hz
dBc/Hz
−70 max. −100 max. −120 max. −135 max. −135 max.
Phase noise (@19.2MHz)
The value of phase noise changes when the frequency changes.
n Dimensions
PIN Connections
n List of Options
Power supply voltage Nominal frequency (MHz) DC +5V 10 to 20
#1 #2 #3 #4 #5 #6 #7 VCONT VREF...
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