VCE1 series
3.3, 5.0 volt CMOS Oscillator
Features
•
CMOS output
•
Output frequencies to 66.667 MHz
•
Tri-state output for board test and debug
•
0/70 or –40/85
°C
operating temperature
•
Low cost industry standard 14x9.8 mm
package
•
RoHS and lead free compliant
construction
The VCE1 Crystal Oscillator
Applications
•
SONET/SDH/DWDM
•
Ethernet, Gigabit Ethernet
•
Storage Area Network
•
Digital Video
•
Broadband Access
f
o
Output
Buffer /
Disable
•
Microprocessors/DSP/FPGA
Description
Vectron’s VCE1 Crystal Oscillator (XO) is quartz
stabilized square wave generator with a CMOS
output, operating off a 3.3 or 5.0 volt supply.
Vectron International 267 Lowell Road, Hudson NH 03051
Tel: 1-88-VECTRON-1
e-mail: vectron@vectron.com
Performance Characteristics
Table 1. Electrical Performance, 5V option
Parameter
Frequency
Operating Supply Voltage
1
Absolute Maximum Supply Voltage
Supply Current, Output Enabled
Output Logic Levels
Output Logic High
2
Output Logic Low
2
Output Rise/Fall Time
2
Duty Cycle
3
(ordering option)
Operating Temperature (ordering
option)
Storage Temperature
Stability
4
(ordering
option)
Output Enable/Disable
5
Output Enabled
Output Disabled
Start-up time
Symbol
f
O
V
DD
I
DD
V
OH
V
OL
t
R/
t
F
SYM
T
OP
T
STOR
∆F/T
E/D
0.9*V
DD
0.1*V
DD
8
40/60 or 45/55
0/70 or -40/85
-55
±50, ±100
4.0
T
SU
0.8
10
ms
125
Min
1.000
4.5
-0.7
Typical
5.0
Maximum
66.667
5.5
7.0
40
Units
MHz
V
V
mA
V
V
ns
%
°C
°C
ppm
V
Table 2. Electrical Performance, 3.3V option
Parameter
Frequency
Operating Supply Voltage
1
3.3
Absolute Maximum Operating Voltage
Supply Current, Output Enabled
I
DD
Output Logic Levels
V
OH
0.9*V
DD
V
Output Logic High
2
0.1*V
DD
V
Output Logic Low
2
V
OL
2
Output Rise/Fall Time
t
R/
t
F
8
ns
3
Duty Cycle
(ordering option)
SYM
40/60 or 45/55
%
Operating Temperature (ordering
option)
T
OP
0/70 or –40/85
°C
Storage Temperature
T
STOR
-55
125
°C
4
Stability (ordering
option)
±50, ±100
ppm
∆F/T
5
V
E/D
Output Enable/Disable
2.0
Output Enabled
0.5
Output Disabled
Start-up time
T
SU
10
ms
1. A 0.01uF and a 0.1uF capacitor should be located as close to the supply as possible (to ground) is recommended.
2. Figure 3 defines these parameters. Figure 4 illustrates the operating conditions under which these parameters are
tested and specified. For Fo>90MHz, rise and fall time is measured 20 to 80%.
3. Symmetry is measured defined as On Time/Period.
4. Includes calibration tolerance, operating temperature, supply voltage variations, aging and shock and vibration.
5. Output will be enabled if enable/disable is left open.
t
R
t
F
Symbol
f
O
V
DD
Min
1.000
2.97
-0.5
Typical
Maximum
66.667
3.63
5.0
40
Units
MHz
V
V
mA
I
DD
4
V
DD
V
OH
50%
+
-
.
1µF
.01µF
I
C
1
+
-
2
3
15pF
V
OL
On Time
Period
V
C
Figure 3. Output Waveform
Figure 4. Typical Output Test Conditions (25±5°C)
Vectron International 267 Lowell Rd, Hudson NH 03051
Tel: 1-88-VECTRON-1
e-mail: vectron@vectron.com
VCE1 Data Sheet
Enable/Disable Functional Description
Under normal operation the Enable/Disable is left open or set to a logic high state. When the E/D is set to
a logic low, the oscillator stops and the output is in a high impedance state. This helps reduce power
consumption as well as facilitating board testing and troubleshooting.
Tri-state Functional Description
Under normal operation the tri-state is left open or set to a logic high state. When the tri-state is set to a
logic low, the oscillator remains active but the output buffer is in a high impedance state. This helps
facilitate board testing and troubleshooting.
Table 3. Outline Diagrams and Pin Out
Pin #
1
2
3
4
Symbol
E/D or NC
GND
f
O
V
DD
Function
Tri-state, Enable/Disable or NC
Electrical and Case Ground
Output Frequency
Supply Voltage
Figure 5, Package drawing
Vectron International 267 Lowell Rd, Hudson NH 03051
Tel: 1-88-VECTRON-1
e-mail vectron@vectron.com
VCE1 Data Sheet
Reliability
The VCE1 qualification tests have included:
Table 4. Environnemental Compliance
Parameter
Mechanical Shock
Mechanical Vibration
Temperature Cycle
Gross and Fine Leak
Resistance to Solvents
Conditions
MIL-STD-883 Method 2022
MIL-STD-883 Method 2007
MIL-STD-883 Method 1010
MIL-STD-883 Method 1014
MIL-STD-883 Method 2015
Handling Precautions
Although ESD protection circuitry has been designed into the the VCE1, proper precautions should be
taken when handling and mounting. VI employs a Human Body Model and a Charged-Device Model
(CDM) for ESD susceptibility testing and design protection evaluation. ESD thresholds are dependent on
the circuit parameters used to define the model. Although no industry wide standard has been adopted
for the CDM, a standard HBM of resistance = 1.5kohms and capacitance = 100pF is widely used and
therefore can be used for comparison purposes.
Table 5. ESD Ratings
Model
Human Body Model
Charged Device Model
Minimum
1000
1500
Conditions
MIL-STD-883 Method 3115
JESD 22-C101
Suggested IR profile
Devices are built using lead free epoxy, but are only rated for a maximum 240°C reflow. A typical reflow
profile is shown below in Figure 6.
TEMPERATURE(°C)
TIME(s)
Figure 6. Suggested Reflow Profile
Vectron International 267 Lowell Rd, Hudson NH 03051
Tel: 1-88-VECTRON-1
e-mail vectron@vectron.com
VCE1 Data Sheet
Ordering Information:
VCE1 -
Product Family
Crystal Oscillator
14x9.8 plastic package
Voltage Options
A: +5.0 Vdc +/-10%, 15pF
B: +3.3 Vdc +/-10%, 15pF
E: +5.0 Vdc +/-10%, 50pF
B
3
B -
25M00
Output Frequency
In MHZ
Electrical Options
3: Tri-state, 45/55% Duty
The following codes are not
recommended for new designs
0: No tri-state, 40/60% Duty
1: Tri-state, 40/60% Duty
2: No tri-state, 45/55%Duty
Stability Options
A: ±100ppm, 0 to 70°C
C: ±100ppm, -40 to 85°C
B: ±50ppm, 0 to 70°C
D: ±50ppm, -40 to 85°C
Note: Not all combinations are available.
Tri-state with a 45/55% is the most common Electrical code and is recommended for most applications.
Devices will be shipped in Anti Static Tubes
For Additional Information, Please Contact:
USA:
Vectron International
•
267 Lowell Road, Hudson, NH 03051
•
Tel: 1-88-VECTRON-1
•
Fax: 1-888-FAX-VECTRON
EUROPE:
Landstrasse, D-74924, Neckarbischofsheim, Germany
•
Tel: 49 (0) 7268 8010
•
Fax: 49 (0) 7268 801281
ASIA:
Vectron Asia Pacific Sales 1F~2F. No.8 Workshop No.308 Fenju Rd.,
WaiGaoQiao Free Trade Zone, Pudong New Area Shanghai, China 200131
•Tel: 8621 50480777 • Fax: 8621 50481881
July 17, 2006
www.vectron.com
Vectron International 267 Lowell Rd, Hudson NH 03051
Tel: 1-88-VECTRON-1
e-mail vectron@vectron.com
FPGA/CPLD
