VFAC3
Surface Mount Clock Oscillator
ACMOS / LSTTL Compatible
Features
RoHS Status
ACMOS – TTL Compatible
Very Low Phase Jitter
Wide Frequency Range
Miniature Ceramic Package
EMI Shielded
Tight Duty Cycle Available
Wide Temperature Range Available
5.0V, 3.3V, 2.5V, and 1.8V Available
Tristate control standard
Electrical Specifications
Parameter
Input Break
Down Voltage
Storage Temp.
Frequency
Range
Frequency
Stability
Input Voltage
Input Current
Load
Duty Cycle
Rise / Fall Time
Logic “1” Level
Logic “0” Level
Start-up Time
Phase Jitter
Tristate
Function
Enable/ Disable
Time
Tr/Tf
Voh
Vol
Ts
fj
12KHz to 20MHz
@1.4V
@50% Vcc
0.4V to 2.4V 20% to 80%
Max Load
Max Load
0.9Vcc
0.1Vcc
15
1
Symbol
Vcc
Ts
F
∆F/F
Overall conditions including:
calibration, temp., aging 10
yrs, shock, vibration
Condition
Min
-0.5
-55
20
20
20
20
Typ
Max
7.0
+125
165
200
125
±100
Unit
V
°C
MHz
ppm
Note
5V
3.3V, 2.5V,
1.8V
See “How to
Order” table
See “How to
Order” table
Vcc
Icc
F= 100MHz 15pF load
4.75
3.15
2.38
1.71
5.00
3.30
2.50
1.80
5.25
3.45
2.63
1.89
70
V
mA
5 LSTTL loads or 15pF
40
40
50
50
60
60
1.5
%
ns
V
V
ms
ps
RMS
5% and 2.5%
options available
Input HIGH (>0.8Vcc) or floating: Active; Input LOW (0.5V): Infinite Impedance
100
ns
75 South Street, Hopkinton, MA 01748 • 800-982-5737 • 508-435-6831 • FAX 508-435-5289 • www.valpeyfisher.com • RevJ0311
1
VFAC3
Surface Mount Clock Oscillator
ACMOS / LSTTL Compatible
Environmental and Mechanical Conditions
Parameter
Operating Temperature Range
Mechanical Shock
Thermal Shock
Vibration
Soldering Conditions
Hermetic Seal
.
Condition
0°C to +70°C or -40°C to +85°C available
Per MIL-STD-202, Method 213, Cond. E
Per MIL-STD-883, Method 1011, Cond. A
Per MIL-STD-883, Method 2007, Cond. A
260°C for 10s Max., or 230°C for 90s
Leak rate less than 5 x 10-8 atm.cc/s of helium
Pin #
Pin 1
Pin 2
Pin 3
Pin 4
Connection
Tristate Control
Ground
Output
Vcc
How to Order
VFAC3
Frequency Stability
Code Specification
S
20
ppm
A
25
ppm
B
50
ppm
100
ppm
Duty Cycle
Code Specification
HH
2.5%
H
5%
10%
FREQ.
Operating Temp. Range
Code
Specification
0C to 70C
1
-40C to +85C
Input Voltage
Code Specification
J
1.8V
C
2.5V
L
3.3V
5.0V
75 South Street, Hopkinton, MA 01748 • 800-982-5737 • 508-435-6831 • FAX 508-435-5289 • www.valpeyfisher.com • RevJ0311
2
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