Product Data Sheet
VC-800
Voltage Controlled Crystal Oscillator
Features
• Worlds Smallest VCXO, 5.0 x 3.2 x 1.5 mm
• High Frequencies to 51.84 MHz
• 5 or 3.3 V operation
• Linearity
≤10%
• Tri-State Output
• Low jitter < 6ps rms
• VCXO with CMOS outputs
• 0/70 or –40/85°C temperature range
• Hermetically sealed ceramic SMD package
Applications
• SONET/SDH
• DWDM
• xDSL/PCMCIA cards
• Digital Video
Description
Vectron’s VC-800 Voltage Controlled Crystal Oscillator
(VCXO) is a quartz stabilized square wave generator
with a CMOS output and is tested at CMOS and TTL
(5 volt operation) logic levels.
The VC-800 is the smallest available VCXO making it
ideally suitable for PCMCIA applications as well as any
other where size is limited but performance is required.
VC-800 Voltage Controlled Crystal Oscillator
Performance Characteristics
Electrical Performance
Parameter
Frequency
Supply Voltage
1
(+3.3 V)
(+5.0 V)
Symbol
f
O
V
DD
I
DD
V
OH
V
OL
t
R
t
F
SYM
V
C
V
C
APR
40
0.5
0.3
+/-50
+/- 80
Positive
I
VCXO
BW
10
5.0 x 3.2 x 1.5
±1
uA
kHz
mm
50
0/70 or –40/85
4.5
3.0
0.9*V
DD
0.1V
DD
5
5
60
ns
ns
%
°C
V
V
ppm
Minimum
1.544
2.97
4.5
3.3
5.0
12
Typical
Maximum
51.84
3.63
5.5
25
Units
MHz
V
mA
V
Supply Current
Output Logic Levels
Output Logic High
2
Output Logic Low
2
Transition Times
Rise Time
2
Fall Time
2
Symmetry or Duty Cycle
3
Operating temperature (ordering option)
Test Conditions for APR (+5V option)
Test Conditions for APR (+3.3V option)
Absolute Pull Range (ordering option)
Gain Transfer (See Figure 3)
Control Voltage Leakage Current
Control Voltage Bandwidth (-3dB)
Package Size
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 1 defines these parameters. Figure 2 illustrates the equivalent five gate TTL load and operating conditions under
which these parameters are tested and specified.
3. Symmetry is defined as (ON TIME/PERIOD with Vs = 1.4 V for TTL and Vs=2.5 V for CMOS, 5 volt operation, and
Vs=1.65V for 3.3 Volt operation.
4. Load Capacitor will depend on frequency.
.
Figure 1. Output Waveform
Conditions (25±5°C)
Figure 2. Typical Output Test
Vectron International •
267 Lowell Road, Hudson, NH 03051
• Tel: 1-88-VECTRON-1 • Fax: 1-888-FAX-VECTRON
2
VC-800 Voltage Controlled Crystal Oscillator
Outline Diagram
6
5
4
Pad Layout
1
2
3
Pin Out
Pin #
1
2
3
4
5
6
Symbol
VC
Tri-state
GND
f
O
CMOS/TTL
V
DD
Function
Control Voltage
Logic low disables output. Logic high or N/C enables output waveform.
Ground
Output Frequency
Logic low for CMOS optimized symmetry. Logic high or N/C for TTL optimized symmetry.
Supply Voltage
Tape and Reel
J
F
D
A
E
C
G
B
L
I
H
K
Tape and Reel Dimensions (mm)
Tape Dimensions
Product
VC-800
A
12
B
5.5
C
1.5
D
4
E
8
Reel Dimensions
F
1.78
G
20.6
H
13
I
55
J
6
K
12.4
L
178
500
# Per Reel
Vectron International •
267 Lowell Road, Hudson, NH 03051
• Tel: 1-88-VECTRON-1 • Fax: 1-888-FAX-VECTRON
3
VC-800 Voltage Controlled Crystal Oscillator
Absolute Maximum Ratings
Stresses in excess of the absolute maximum ratings can permanently damage the device. Functional operation is
not implied at these or any other conditions in excess of conditions represented in the operational sections of this
data sheet. Exposure to absolute maximum ratings for extended periods may adversely affect device reliability.
Parameter
Power Supply
Storage Temperature
Voltage Control Range
Symbol
V
DD
Tstorage
V
C
Ratings
6
-55/125
0 to V
DD
Unit
Vdc
°C
V
200.0
150.0
100.0
Frequency Pull (ppm)
50.0
0.0
-50.0
-100.0
-150.0
-200.0
0.30
0.60
0.90
1.20
1.50
1.80
2.10
2.40
2.70
3.00
Control Voltage (volts)
Figure 3. Typical Frequency Pull Versus Control Voltage, 35.328MHz Output, 3.3 Volt Supply
Vectron International •
267 Lowell Road, Hudson, NH 03051
• Tel: 1-88-VECTRON-1 • Fax: 1-888-FAX-VECTRON
4
VC-800 Voltage Controlled Crystal Oscillator
Reliability
The VC-800 is capable of meeting the following qualification tests.
Environmental Compliance
Parameter
Mechanical Shock
Mechanical Vibration
Solderability
Gross and Fine Leak
Resistance to Solvents
Conditions
MIL-STD-883 Method 2002
MIL-STD-883 Method 2007
MIL-STD-883 Method 2003
MIL-STD-883 Method 1014
MIL-STD-883 Method 2016
Handling Precautions
Although ESD protection circuitry has been designed into the the VC-800, 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.
ESD Ratings
Model
Human Body Model
Charged Device Model
Minimum
1500
1000
Conditions
MIL-STD-883 Method 3115
JESD 22-C101
Recommended Solder Reflow Profile
Vectron International •
267 Lowell Road, Hudson, NH 03051
• Tel: 1-88-VECTRON-1 • Fax: 1-888-FAX-VECTRON
5
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