2.5V LVE-PECL XO
MODEL: RFX250
FEATURES
• 2.5V Operation
• High Performance
• Complementary Output
Discontinued
Applications Include
• SONET
• SDH
• ATM
• WAN
• Gb Ethernet
Learn more about:
Part Marking Identification
Tape and Reel Specification
Internet required
PRELIMINARY
• PART NUMBER SELECTION
Learn More - Internet Required
Model
Number
680-Frequency-xxxxx RFX250
Part Number
Frequency
Stability
See table
Operating
Temperature
See table
Frequency
Range (MHz)
600.000 ~ 1250
• ELECTRICAL CHARACTERISTICS
PARAMETERS
Frequency Range (F
O
)
Stability
(-20 ~ +70ºC)
(-40 ~ +85ºC)
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
1
MAX
(unless otherwise noted)
600.000 ~ 1250MHz
±20PPM
±25PPM
-55ºC ~ +125ºC
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
Inclusive of 25ºC 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
RFX300 Series Recommended Circuit
LV-PECL OUT
LV-PECL OUT
All dimensions are in millimeters.
• ENABLE / DISABLE FUNCTION
OUTPUT (Pin 4, pin 5)
(Pin 1)
ACTIVE
OPEN
2
ACTIVE
'1' Level V
IH
≥
2.0V
High Z
'0' Level V
IL
≤
1.0V
FOXElectronics
5570 Enterprise Parkway Fort Myers, Florida 33905 USA +1(239)693-0099 FAX +1(239)693-1554
http://www.foxonline.com
© 2004 FOX ELECTRONICS
61
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