Surface Mount Oscillator
ECM VFAC3 Series
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Designed For Gigabit Ethernet Applications
Very Low Phase Jitter
Miniature Ceramic Package
SMD Tri-state Oscillator
Industrial Temperature Range Available
EMI Shielded
Parameter
Frequency Range
Frequency
Stability
Supply Voltage
Supply Current
Load
Duty Cycle
Rise & Fall Times
Logic “1” Level
Logic “0” Level
Enable Input
Disable Input
Start-up Time
Phase Jitter
Enable Disable
Time
Operating Temp
VFAC3
80.0MHz to 160.0MHz
+/-100ppm
5V +/-5%
Standard
3.3V +/-5%
Option
60mA max
15pf Load
Frequency and load dependant
10TTL gates or 50pF AC Coupled
50R Termination recommended
40 / 60 or 45/55
Specify
1.5nS max
0.9Vcc min
0.1Vcc max
Input HIGH (>2.5V) or floating ACTIVE
Input LOW (<0.5V) INFINITE IMPEDANCE
10mS max
2mS Typ
1pS max
100nS
Specify
10nS available
0
0
0
0
0 C to +70 C (-45 to +85 C) Available
Environmental & Mechanical
Mechanical
Mil STD 202 Method 213
Cond E
Shock
Thermal
Mil STD 883 Method 1011
Shock
Cond A
Vibration
MIL-STD-883 Method 2007
Cond A
0
Soldering
260 C for 10s max:
0
Condition
230 C for 90s max
-8
Hermetic
Leak rate less than 5x10
Seal
Atm.cc/s of helium
Part Numbering: VFAC3 B H L 1 125.0M
Series
Stability
S= 20ppm A= 25ppm
B= 50ppm Blank = 100ppm
Symmetry
HH=52.5/37.5 H= 45/55
Blank= 40/60
Supply Voltage L=3.3 Blank = 5V
Temperature Range
0
0
Blank= 0 C to +70 C
0
0
1= -40 C to +85 C
Frequency
Pin
Function
A
7.70
B
5.20
1
Tristate
C
2.29
2
GND/ Case
D
1.14
E
5.08
3
O/P
F
1.27
4
Vcc
G
3.98
H
1.39
Dimensions in mm
ECM Electronics Limited, Penmaen House, Ashington, West Sussex, RH20 3JR, UK
Tel: +44(0)1903 892810: Fax: +44(0)1903 892738. Email: ecm@ecmelectronics.co.uk
Although we have attempted to accurately reflect the products we market. ECM reserve the right without prior notice to
discontinue any product or make design changes we believe necessary.
Issue 1
ECM [ ECM ELECTRONICS LIMITED. ]
