VFXO311
XO Ultra Low Jitter 2.5V, 3.3V
5x7mm SMD, LVPECL / LVDS / LVCMOS
Features
60MHz to 800MHz Frequency Range
Differential Output Levels (LVPECL/LVDS)
Single Ended LVCMOS output available
<0.2ps jitter RMS over 12KHz ~ 20MHz
Selectable OE Logic
RoHS Status
Applications
Optical Networking, SONET / SDH
10 Gigabit Ethernet
Broadband Access
Electrical Specifications
Parameter
Frequency
Range
Symbol
F
Vs. Operating
Temperature
∆F/F
Vs. Supply Voltage
Vs. Aging / Year
Operating
Temperature
Output
Supply
Voltage
Period Jitter
RMS
Integrated
Jitter RMS
12KHz to 20MHz
Condition
Min
60
60
Typ
Max
800
320
±
50
±
25
± 20
Unit
MHz
Note
PECL / LVDS
CMOS
Order Code B
Order Code C
Order Code D
First Year
After first year
Order Code B
Order Code G
Order Code L
Order Code D
Order Code C
Order Code E
Order Code G
ppm
ppm/V
ppm
ppm
Frequency
Stability
±
3
±
3
±1
0°
-40°
+70°
+85°
T
LVPECL
LVDS
LVCMOS
Vcc
155.52 MHz
311.04 MHz
622.08 MHz
155.52MHz
311.04MHz
622.08MHz
155.52MHz
311.04MHz
622.08MHz
°C
3.15
2.25
3.3
2.5
2.5
2.5
4
0.25
0.18
0.09
18
18
25
3.45
2.75
3
3
6
V
ps
ps
Period Jitter
Peak-to-Peak
20
20
30
ps
* NOTE: Certain frequencies above 500MHz (3.3V
DD
) and above 300MHz (2.5VDD) are not available.
Consult factory for availability.
75 South Street, Hopkinton, MA 01748 • 800-982-5737 • 508-497-6377 • FAX 508-435-5289 • www.valpeyfisher.com • RevC_0209
1
VFXO311
XO Ultra Low Jitter 2.5V, 3.3V
5x7mm SMD, LVPECL / LVDS / LVCMOS
Electrical Specifications
Parameter
Supply
Current
Symbol
Icc
Condition
38 – 100MHz
100 – 300MHz
300 – 640MHz
38 – 100MHz
100 – 320MHz
320 – 640MHz
At 100MHz,
load = 15pF
R
L
= 50 ohm to
(V
DD
-2V)
I
OH
= -8.5mA
I
OL
= -8.5mA
Min
Typ
Max
65
80
90
45
60
70
20
Unit
mA
mA
mA
Note
PECL
LVDS
CMOS
16
Load
Output High
Voltage
Output Low
Voltage
Output
Differential
Voltage
Output Drive
Voltage
Offset Voltage
Rise / Fall
Time
Duty Cycle
Tristate
V
OH
V
OL
V
OD
I
OSD
V
OS
Tr/Tf
20% to 80%
V
OL
= 0.4V,
V
OH
= 2.4V
50 Ohm to V
DD
-2V (PECL)
100 Ohm (LVDS)
V
DD
-1.025
1.4
1.6
2.4
V
DD
-1.620
0.9
1.1
0.4
247
355
8.5
1.125
1.2
0.25
0.3
1.2
1.375
0.45
0.7
1.6
454
V
V
mV
mA
V
ns
PECL
LVDS
CMOS
PECL
LVDS
CMOS
LVDS
CMOS
LVDS
PECL
LVDS
CMOS
PECL
LVDS
CMOS
V
DD
– 1.3V
@ 1.25V
45
50
55
%
50% V
DD
“1”: Output Enable – Pin 2 may float 2.8V min (3.3V V
DD
) or 2.25V min (2.5V V
DD
)
“0”: Tristate – Pin 2 requires 0.4V max (3.3V or 2.5V V
DD
)
Phase Noise Performance
Parameter
Output
Type
PECL
LVDS
CMOS
Phase Noise
(dBc/Hz)
PECL
LVDS
CMOS
PECL
LVDS
Frequency
Range (MHz)
300 - 800
120 – 320
120 – 320
60 – 160
60 – 160
Carrier
Freq.
(MHz)
622.08
155.52
155.52
155.52
155.52
10Hz
-55
-50
-50
-65
-65
100Hz
-85
-82
-82
-95
-95
1KHz
-110
-110
-110
-122
-122
10
KHz
-130
-128
-128
-138
-138
100
KHz
-137
-142
-142
-142
-142
1
MHz
-148
-148
-148
-148
-148
10
MHz
-150
-150
-150
-149
-149
75 South Street, Hopkinton, MA 01748 • 800-982-5737 • 508-497-6377 • FAX 508-435-5289 • www.valpeyfisher.com • RevC_0209
2
VFXO311
XO Ultra Low Jitter 2.5V, 3.3V
5x7mm SMD, LVPECL / LVDS / LVCMOS
Absolute Maximum Ratings
Parameter
Lead
Temperature
Storage
Temperature
Junction
Temperature
ESD
Protection
Supply
Voltage
Output
Voltage
Symbol
Condition
Soldering, 10s max
Ts
Tj
Input static discharge
voltage protection
V
DD
Vo
V
DD
-0.5
-55
Min
Typ
Max
260
+125°
+125°
2
4.6
V
DD
+0.5
Unit
°C
°C
°C
kV
V
V
Note
Environmental and Mechanical Conditions
Parameter
Shock
Humidity
Vibration
Leak
Case
Pads
Marking
Resistance to Solvents
Specification
1000 Gs, 0.35ms, ½ sine wave, 3 shocks in each plane
Resistant to 85 ºR.H. at 85 ºC
10-2000 Hz of 0.06” d.a. or 20 Gs, whichever is less
MIL STD 883, Method 1014, Condition A1
Ceramic with hermetic reistance-welded metal lid
Solderable gold over nickel
Epoxy ink or laser engraved
MIL STD 202, Method 215
How to Order
VFXO311
—
Code
B
C
D
Stability
Specification
50 ppm
25 ppm
20 ppm
Temperature Range
Code
Specification
B
0°C to 70°C
G
-40°C to 85°C
—
FREQUENCY, MHz
Supply Voltage
Code
Output
E
3.3V
G
2.5V
Code
L
D
C
Output
Output
LVPECL
LVDS
CMOS
Note: DG combination not available at all frequencies. Consult factory.
75 South Street, Hopkinton, MA 01748 • 800-982-5737 • 508-497-6377 • FAX 508-435-5289 • www.valpeyfisher.com • RevC_0209
3
VFXO311
XO Ultra Low Jitter 2.5V, 3.3V
5x7mm SMD, LVPECL / LVDS / LVCMOS
LVPECL, LVDS
Pin #
1
2
3
4
5
6
LVCMOS
Pin #
1
2
3
4
Connection
N/C
Tristate
Case, GND
Output
Connection
N/C
Tristate
Case, GND
Output
Output
Supply Voltage
N/C
5*
Supply Voltage
6
*For LVCMOS, Dual single ended
outputs available – consult factory
75 South Street, Hopkinton, MA 01748 • 800-982-5737 • 508-497-6377 • FAX 508-435-5289 • www.valpeyfisher.com • RevC_0209
4
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