Product Data Sheet
F-Type
Voltage Controlled Crystal Oscillator (VCXO)
Features
n
Industry Common Pinout
n
Commercial or Industrial Temperature Range
n
TTL or CMOS Drive Capability
n
Hermetic Package
n
5.0 V or 3.3 V Supply
Description
The F-Type Voltage Controlled Crystal Oscillator
(VCXO) is used in a phase lock loop applications
including clock recovery and frequency translation
applications. The metal package is grounded for
improved EMI performance.
The FTV Voltage Controlled Crystal Oscillator
Pin Information
Table 1. Pin Function
Pin
Symbol
1
V
C
7
GND
8
Output
14
V
DD
Function
VCXO Control Voltage
Case Ground
VCXO Output
Power Supply Voltage (3.3 or 5.0 V
卤10%)
14
1
8
7
Performance Characteristics
Table 2. Electrical Performance
Parameter
Operating Temperature Range
1
Center Frequency
Absolute Pull Range
2
Supply Voltage
Supply Current
3
Output Voltage Levels
Output High
Output Low
3
Transition times
Rise Time
Fall Time
Fanout
Start-Up Time
Control Voltage
Fanout
Symbol
To
f
0
V
DD
I
DD
V
OH
V
OL
T
R
T
F
t
su
V
C
Fo
Minimum
Typical
Maximum
0 to 70, -20 To 70, or -40 to 85
1
-
52
+/- 20 to +/-100
3.3 or 5.0 (+/-10%)
-
0.45 mA/MHz
35
0.9 V
DD
-
0.1 V
DD
-
-
-
-
0.1 V
DD
-
-
-
-
2
-
-
5.0
5.0
10
-
0.9 V
DD
10 TTL
Units
掳C
MHz
ppm
V
mA
V
V
ns
ns
TTL
ms
V
Loads
1. Other frequencies may be available, please contact factory with your special requirements.
2. A 0.1
碌F
low frequency tantalum bypass capacitor in parallel with a 0.01
碌F
high frequency ceramic capacitor is recommended. Both should be located as close to the FTU-Type bias pin as is practical
3. Figure 1 defines these parameters. Figure 2 illustrates the equivalent TTL load and operating conditions under which these parameters are specified and tested.
T
R
V
OH
V
S
V
OL
On Time
0V
Period
T
F
I
DD
14
V
DD
+
-
I
C
V
C
+
-
1
7
650鈩?/div>
8
15pF
1.83k鈩?/div>
Figure 1. Output Waveform
Figure 2. Output Test Conditions (25卤5掳C)
卤
Vectron International
鈥?/div>
166 Glover Avenue, Norwalk, CT 06856
鈥?/div>
Tel: 1-88-VECTRON-1鈥?http://www.vectron.com
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