CRYSTAL
OSCILLATORS
VOLTAGE CONTROLLED CRYSTAL OSCILLATORS 7300 SERIES
■
Model 7311Q
DUAL-RATE VCXO
■
Main applications : SONET, SDH, Gb Ethernet
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Features
8
Oscillation frequency can be switched by
inputting voltage externally.
8
Surface mount type
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Specification
Model
Item
Standard Nominal
Frequency (MHz)
Supply Voltage
Load
Operating Temp. Range
Current Consumption
Output Level
Duty Cycle (+2.0V)
Frequency Stability
AFC Charact.
Polarity
Spec. Code
7311Q
NTVC1
622.08 / 666.5143, 622.08 / 644.5313, 622.08 / 669.3266
+3.3V DC±5%
50Ω
–10~+70°C
100mA max
PECL Level (Complementary)
40~60%
±50×10
–6
max
±100×10
–6
min / +1.65V±1.5V
Positive
■
Dimensions
(mm)
Hollow
PIN CONNECTION
#1
V.C.
CONT.
GND
OUTPUT
OUTPUT
+DC
11.6±0.2
9.6±0.5
#2
#3
#4
#5
#6
#1 #2 #3
Reference land pattern
2.54 2.54
7.0±0.5
3.9±0.2
0.15±0.1
17±0.5
0.8±0.1
#6 #5 #4
2.54 2.54
±0.2 ±0.2
1.27
Function Table
CONT.(#2)
L
H
OUTPUT(#4,#5)
FEC Rate
622.08MHz
* High Level : 2.0V min.
Low Level : 0.8V max.
3.0
2.9
2.9
3.0
120
Please access NDK web site (http://www.ndk.com/) for the latest information.
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