NH37M28LB NIHON DEMPA KOGYO, NH37M28LB Datasheet
NH37M28LB
Manufacturer Part Number
NH37M28LB
Description
Model Name Nh37m28lb Oven-controlled Crystal Oscillator Ocxo For Fixed Communication Equipment Crystal Oscillator
Manufacturer
NIHON DEMPA KOGYO
Datasheet
1.NH37M28LB.pdf
(1 pages)
The value of phase noise changes when the frequency changes.
Crystal Oscillator
Model Name NH37M28LB
Nominal frequency (MHz)
Supply voltage [V
Power consumption (W)
Output voltage
Symmetry (%)
Load impedance (pF)
Operating temperature range (℃)
Frequency control range
Frequency change polarity
Item
STAND OFF
(4 POINT)
17.78 ± 0.3
n
n
n
n
Phase noise (at 10 MHz)
n
l Mobile communications
l Compact.
l Excellent rise characteristics.
l Excellent phase noise characteristics.
l Excellent aging characteristics.
Stabilization time
Long-term frequency stability
Frequency/Temperature characteristics
Frequency/Voltage coefficient
5 - φ0.8
Main Application
Features
Specifications
Reference Value
Dimensions
base station
#3
#2
#1
25.4 ± 0.3
CC
33.1
36
] (V)
Measurement condition
#5
#4
l Measuring instrument
l Synthesizer
at start
when stable (+25 °C)
at 1/2 V
Stabilization Time (Frequency Stability) within
±50 ×10
based on frequency after 60minutes operation.
Based on frequency after 72 hours operation
Based on frequency after 72 hours operation
−10 ℃ to +70 ℃
V
+2.5 ±2.5 V
CC
+5 V ±5 %
−9
CC
after power on at +25°C ,
Terminal number is not printed
Oven-Controlled Crystal Oscillator (OCXO) for Fixed Communication Equipment
Pin connections
#1
#2
#3
#4
#5
l Exchanger
l High-end router
Tolerance ±0.5 mm
OUTPUT
V
GND
V
NC
CONT
CC
mm
Offset frequency
Model
100 Hz
10 kHz
10 Hz
1 kHz
1 Hz
For details of options, please feel free to contact
our sales representatives.
The above frequencies are NDK’ s standard frequencies.
Frequencies other than the above are available. Feel free to
contact our sales representatives.
Frequency
Operating temperature range (℃)
Power supply voltage [V
Nominal frequency range (MHz)
n
n
(MHz)
HCMOS level (V
10
List of Options
List of Ordering Codes
Max. ±100×10
Max. ±2×10
NH37M28LB-10M-NSA3423A
Max. ±10×10
Max. ±1×10
NH37M28LB
OL
Min. ±1×10
−10 to +70
5 minutes
Max. 1.3
+5 ±5 %
CC
Max. 0.5 V, V
40 to 60
Positive
Max. 3
] (V)
10
15
Ordering Code
−9
Max. −120
Max. −140
Max. −145
Max. −150
−9
co50_090925_NH37M28LB_e
/day
dBc/Hz
Max. −80
−6
−9
/year
−9
OH
−40 to +70
Min. 4.5 V)
10 to 40
+3.3
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