61
2004 FOX ELECTRONICS
FOXElectronics
5570 Enterprise Parkway Fort Myers, Florida 33905 USA +1(239)693-0099 FAX +1(239)693-1554
http://www.foxonline.com
FEATURES
2.5V Operation
High Performance
Complementary Output
2.5V LVE-PECL XO
MODEL: RFX250
PRELIMINARY
OUTPUT (Pin 4, pin 5)
ACTIVE
ACTIVE
High Z
ENABLE / DISABLE FUNCTION
(Pin 1)
OPEN
2
'1' Level V
IH
2.0V
'0' Level V
IL
1.0V
RFX300 Series Recommended Circuit
LV-PECL OUT
LV-PECL OUT
Learn more about:
Part Marking Identification
Tape and Reel Specification
Internet required
All dimensions are in millimeters.
1
Inclusive of 25C tolerance, operating temperature range, input voltage change, load change, aging,
shock, and vibration.
2
An internal pullup resistor from pin 1 to pin 6 allows active output if pin 1 is left open
All specifications subject to change without notice. Rev. 6/1/04
600.000 ~ 1250MHz
20PPM
25PPM
-55C ~ +125C
2.5V 5%
32mA
0.5nS
0.5nS
45/55 %
0.9 V
1.3 V Min
125pS
0.3pS Typ.
0.8pS Typ.
2.6pS Typ.
19pS Typ
100nS Max
100nS Max
PARAMETERS
Frequency Range (F
O
)
Stability (-20 ~ +70C)
(-40 ~ +85C)
Storage Temperature Range
Input Voltage
(V
DD
)
Input Current (I
DD
)
Rise Time (20% ~ 80% Vp-p)
Fall Time (80% ~ 20% Vp-p)
Symmetry (50% Vp-p)
Output Voltage (V
OL
)
(V
OH
)
PECL Skew (50% Vp-p)
Jitter
RMS 12kHz to 20MHz
RMS 50kHz to 80MHz
RMS Period
Cycle-to-Cycle
Output Disable Time
Output Enable Time
ELECTRICAL CHARACTERISTICS
MAX
(unless otherwise noted)
WAN
Gb Ethernet
Applications Include
SONET
SDH
ATM
Frequency
Stability
Operating
Temperature
See table
Frequency
Range (MHz)
600.000 ~ 1250
RFX250
Model
Number
Part Number
680-Frequency-xxxxx
PART NUMBER SELECTION
See table
Learn More - Internet Required
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