VF261
XO Low Jitter
5x7mm SMD, PECL / LVPECL
Features
25MHz to 320MHz Frequency Range
Tight duty cycle
<1ps jitter over 12KHz ~ 20MHz
RoHS Status
Applications
Optical Networking, SONET / SDH
10 Gigabit Ethernet
Broadband Access
*Not recommended for new designs – see VFXO401*
Electrical Specifications
Parameter
Frequency
Range
Symbol
F
Over all conditions of :-
Operating Temperature;
Supply Voltage; 10 Years
Aging; shock & vibration
0°
-40°
Condition
Min
15
Typ
Max
300
±
20
±
25
±
50
±
100
+70°
+85°
PECL
Vcc
PECL
LVPECL
50 Ohm Load
4.75
3.15
5.00
3.30
Unit
MHz
Order Code S
Order Code A
Order Code B
standard
Note
Frequency
Stability
∆F/F
ppm
Operating
Temperature
Output
Supply
Voltage
T
°C
LVPECL
V
Standard
Order Code L
5.25
3.45
60
Input Current
Icc
mA
75 South Street, Hopkinton, MA 01748 • 800-982-5737 • 508-435-6831 • FAX 508-435-5289 • www.valpeyfisher.com • Datasheet RevC0608
1
VF261
XO Low Jitter
5x7mm SMD, PECL / LVPECL
Electrical Specifications
Parameter
Load
Duty Cycle
Rise / Fall
Time
Logic “1”
Level
Logic “0”
Level
Start up time
Jitter
12KHz~20MHz
1σ
Tr/Tf
Voh
Vol
20% to 80%
Vcc = 5.0V
Vcc = 3.3V
Vcc = 5.0V
Vcc = 3.3V
4.04
2.59
3.15
1.45
2
Symbol
Condition
Min
Typ
Max
Unit
Note
50 Ohm to Vcc-2V or Thevenin Equivalent Bias Required
47.5
45
50
50
52.5
55
1.5
4.19
2.74
3.25
1.55
10
0.7
%
ns
V
V
ms
ps
Order Code HH
Standard
How to Order
VF261
—
—
—
FREQUENCY, MHz
Code
S
A
B
Stability
Specification
20 ppm
25 ppm
50 ppm
100ppm std.
Duty Cycle
Code
Specification
HH
±2.5%
±5% std.
Input Voltage
Code
Output
L
3.3V
5.0V
Temp. Range
Code
Specification
Code
Output
S
20 ppm
0~70°C std.
A
25 ppm
1
-40~+85°C
B
50 ppm
100ppm
75 South Street, Hopkinton, MA 01748 • 800-982-5737 • 508-435-6831 • FAX 508-435-5289 • www.valpeyfisher.com • Datasheet RevC0608
2
VF261
XO Low Jitter
5x7mm SMD, PECL / LVPECL
Absolute Maximum Ratings
Parameter
Supply
Break Down
Voltage
Storage
Temperature
Junction
Temperature
Symbol
Vcc
Ts
Tj
Condition
Min
-0.5
-55
Typ
Max
4.6
+125°
+125°
Unit
V
°C
°C
Note
Environmental and Mechanical
Parameter
Mechanical Shock
Thermal Shock
Vibration
Soldering Conditions
Hermetic Seal
Specification
Per MIL-STD-202, Method 213, Condition E
Per MIL-STD-883, Method 1011, Condition A
Per MIL-STD-883, Method 2007, Condition A
260°C for 10s max
Leak rate less than 5x10
-8
atm.cc/s of helium
Pin #
1
2
3
4
5
6
Connection
N/C
N/C
Case GND
Output
Output
Vcc
75 South Street, Hopkinton, MA 01748 • 800-982-5737 • 508-435-6831 • FAX 508-435-5289 • www.valpeyfisher.com • Datasheet RevC0608
3
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