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9740C_09 Datasheet, PDF (1/1 Pages) NIHON DEMPA KOGYO – Oven-Controlled Crystal Oscillator (OCXO) 9700 Series
Crystal Oscillator
Model Name 9740C
Oven-Controlled Crystal Oscillator (OCXO) 9700 Series
 Main Application
Mobile communication base station
 Features
 Excellent phase noise characteristics. (Compared to NDK’ s existing products,
phase noise characteristics have improved by 10 dB with the offset frequency at 1
kHz or more.)
 Excellent aging characteristics.
 Specifications
Model
9740C
Item
Classification
Standard nominal frequency (MHz)
Power supply voltage [VCC] (V)
Power consumption (W)
Output level
Load (Ω)
Operating temperature range (℃)
Frequency warm-up characteristics
+25 °C twenty minutes after power is on
Based on frequency after 60 minutes operation
CDE01
BDE01
5
10
+12 ±10 %
Max. 4.5
Min. 1 mW (Min. 0 dBm) Min. 5 mW (Min. 7 dBm)
50
−10 to +60
Max. ±50×10−9
Aging
Based on frequency after 48 hours operation
Based on frequency after 48 hours operation
Frequency / temperature characteristics −10 ℃ to +60 ℃
Power supply variation characteristics VCC +12 V ±10 %
Frequency control characteristics +5.0 ±4.5 V
Control polarity
Case code
Max. ±0.5×10−9/day
Max. ±2×10−9/Day
Max. ±20×10−9/year
Max. ±80×10−9/Year
Max. ±20×10−9
Max. ±2×10−9
Min. ±0.3×10−6
Min. ±1.0×10−6
Positive
40C
*1 It is based on frequency after 48 hours operation.
 Reference Value
Phase noise (dBc/Hz)
Offset frequency
1 Hz
10 Hz
100 Hz
1 kHz
10 kHz
CDE01
Max. −100
Max. −130
Max. −140
Max. −150
Max. −155
BDE01
Max. −90
Max. −120
Max. −140
Max. −150
Max. −155
 Dimensions
40C
40.0 ± 1.0
PIN Connections
#1
VCC
#2
GND
#3
VCONT
#4
GND
#5
OUTPUT
#1
#2
#3
mm
STAND OFF
(6POINTS)
 List of Ordering Codes
Frequency
(MHz)
5
10
Ordering Code
9740C-5M-NSA3276A
9740C-10M-NSA3276B
The above frequencies are NDK’ s standard frequencies.
Frequencies other than the above are available.
Feel free to contact our sales representatives.
5 - Φ0.8 ± 0.1
#5
(20.32)
#4
30.48 ± 0.25
Tolerance ±1.0 mm
co52_090121_9740C_e