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零件编号 | NH25M22WA | ||
描述 | Oven-Controlled Crystal Oscillator | ||
制造商 | NIHON DEMPA KOGYO | ||
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1 Page
Crystal Oscillator
Model Name NH25M22WA Oven-Controlled Crystal Oscillator (OCXO) for Fixed Communication Equipment
www.DataSheet4U.com
n Main Application
l Mobile communication base station
l Measuring instrument
l Synthesizer
l Exchanger
l High-end router
n Features
l Compact.
l A surface-mount (SMD) package.
l Reflow soldering is possible.
l Excellent phase noise characteristics.
l Excellent aging characteristics.
n Specifications
Item Measurement condition
Model
NH25M22WA
Standard nominal frequency (MHz)
32.768
Power supply voltage
DC +3.3V
Power consumption
3.0 W max. at the start and 1.3 W max. when stable (+25°C)
Output level
HCMOS (VOL : 0.4V max., VOH : 2.4V min.)
Load
10kΩ//15pF
Duty Cycle (1/2Vcc)
45 to 55%
Operating temperature range
−10 to +70°C
Aging
Based on frequency after 30 days operation
Based on frequency after 30 days operation
±2×10−9/day max.
±50×10−9/year max.
Frequency / temperature characteristic −10 to +70°C
±20×10−9 max.
Power supply variation characteristics DC +3.3V±5%
±3×10−9 max.
Frequency control characteristic 0 to +2.8 V, positive polarity
±0.9×10−6 min.
n Reference Value
Phase noise (@32.768MHz)
The value of phase noise changes when the frequency changes.
Offset frequency
1 Hz
10 Hz
100 Hz
1k Hz
10k Hz
dBc/Hz
−65 max.
−95 max.
−115 max.
−125 max.
−140 max.
n Dimensions
8.9±0.1 8.9±0.1
7.62±0.1
PIN Connections
#1 VCONT
#2 VREF
#3 VCC
#4 OUTPUT
#5 ALARM
#6 GND(Heating)
#7 GND
2.5
22 #1 #2 #3
21.5
#7 #6 #5 #4
Tolerance ±0.2mm
n List of Options
Power supply voltage
Nominal frequency (MHz)
DC +5V
10 to 40
For details of options, please feel free to contact
our sales representatives.
n List of Ordering Codes
Frequency
(MHz)
32.768
Ordering Code
NH25M22WA-32.768M-NSA3425A
The above frequencies are NDK’ s standard frequencies.
Frequencies other than the above are available. Feel free to
contact our sales representatives.
co44_080418_NH25M22WA_e1
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页数 | 1 页 | ||
下载 | [ NH25M22WA.PDF 数据手册 ] |
零件编号 | 描述 | 制造商 |
NH25M22WA | Oven-Controlled Crystal Oscillator | NIHON DEMPA KOGYO |
NH25M22WB | Oven-Controlled Crystal Oscillator | NIHON DEMPA KOGYO |
NH25M22WC | Oven-Controlled Crystal Oscillator | NIHON DEMPA KOGYO |
NH25M22WD | Oven-Controlled Crystal Oscillator | NIHON DEMPA KOGYO |
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