VC-700
Voltage Controlled Crystal Oscillator
Features
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Small Industry Standard Package, 5.0 x 7.5 x 2.8 mm
Output Frequencies from 77.76 MHz to 180 MHz
3.3 V or 5 V Operation
HFF crystal for ultra low jitter
Complementary PECL Outputs
Low phase noise and custom options
0/70 ºC or –40/85 ºC operating temperature
Enable /Disable (PECL)
Applications
PLL circuits for Clock Smoothing and Frequency Translation
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Fiber Channel
SONET
SDH, ITU-T G.709
SONET, GR-253-CORE Issue3
Description
The VC-700 is a voltage controlled crystal oscillator that
operates at the fundamental frequency of the internal HFF
crystal. The HFF crystal is a high-Q quartz device that
enables the circuit to achieve low phase jitter performance
over a wide operating temperature range. The oscillator is
housed in an industry standard hermetically sealed leadless
surface mount package and is available on tape and reel.
VC-700 Voltage Controlled Crystal Oscillator
Electrical Performance
Parameter
Frequency
Supply Voltage
Supply Current
Output Logic Levels
Output Logic High
Output Logic low
Output Logic High
Output Logic low
Transition Times
Rise Time
Fall Time
Symmetry or Duty Cycle
Operating Temperature
ordering option
Symbol
f
O
(+3.3V)
(+5.0V)
V
DD
V
DD
I
DD
0/70 ˚C
0/70 ˚C
-40/85 ˚C
-40/85 ˚C
V
OH
V
OL
V
OH
V
OL
t
R
t
F
SYM
Minimum
77.76
3.15
4.75
Typical
3.3
5.0
Maximum
180
3.45
5.25
<65
Units
MHz
V
V
mA
V
V
V
V
ns
ns
%
°C
ps (RMS)
ps (RMS)
Notes
Vcc
Vcc
Vcc
Vcc
-1.025
-1.810
-1.085
-1.830
Vcc
Vcc
Vcc
Vcc
-0.880
-1.620
-1.880
-1.555
1
1
45
50
0/70 or -40/85
0.3
0.5
55
Jitter (12 kHz – 20 MHz BW)
Jitter (50 kHz – 80 MHz BW)
Test Conditions for APR (+5V
option
)
Test Conditions for APR (+3.3V
option
)
Absolute Pull Range (APR)
V
C
V
C
APR
0.5
0.3
±32
±50
Gain Transfer
Control Voltage Bandwidth (-3dB)
Package Size
BW
10
4.5
3.0
V
V
ppm
Positive
kHz
5.0 x 7.5 x 2.8
Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • Web: www.vectron.com
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VC-700 Voltage Controlled Crystal Oscillator
Outline Diagram
Pad Layout
Pin Out
Pin
1
2
Symbol
Vc
N/C or OE
3
4
5
6
GND
Output
COutput
Vcc
Function
VCXO Control Voltage
Output Disable
Enabled = PECL Logic 0 (or Open)
Disabled = PECL Logic 1
Case and Electrical Ground
Output
Complementary Output
Power Supply Voltage (3.3V or 5V)
Tape and Reel (EIA-481-2-A)
Tape Dimensions (mm)
Dimension
Tolerance
VC-700
W
Typ
16
F
Typ
7.5
Do
Typ
1.5
Po
Typ
4
Reel Dimension (mm)
P1
Typ
8
A
Typ
178
B
Min
1.5
C
Typ
13
D
Min
20.2
N
Min
50
W1
Typ
16.4
W2
Max
22.4
# Per
Reel
200
Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • Web: www.vectron.com
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VC-700 Voltage Controlled Crystal Oscillator
Absolute Maximum Ratings
Parameter
Power Supply
Output Current
Voltage Control Range
Storage Temperature
Soldering Temp/Time
Symbol
Vcc
lout
V
C
TS
T
LS
Ratings
0 to 6
25
0 to Vcc
-55 to 125
220/10
Unit
V
mA
V
˚C
˚C/sec
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.
Reliability
The VC-700 family 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
MIL-STD-883, Method
MIL-STD-883, Method
MIL-STD-883, Method
MIL-STD-883, Method
2002
2007
2003
1014
2015
Handling Precautions
Although ESD protection circuitry has been designed into the VC-700 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 Ratings
Model
Human Body Model
Charged Device Model
Minimum
500
500
Conditions
MIL-STD 883, Method 3015
JESD 22-C101
VI qualification includes aging at various extreme temperatures, shock and vibration, temperature cycling, and IR reflow
simulation. The conditions a device can withstand are well understood and devices can be subjected to the profile above. This
profile shows a ramp up condition to prevent thermal shock, a preheat period in which the flux is activated, a ramp up to 183˚C
which is the reflow temperature of Sn/Pb eutectic, and a gradual cool down. The time above 183˚C should not exceed 60
seconds and the peak temperature should be no more than 220˚C for 10 seconds. The VC-700’s are hermetically sealed so
an aqueous wash is not an issue.
Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • Web: www.vectron.com
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VC-700 Voltage Controlled Crystal Oscillator
Standard Frequencies (MHz)
155.520
156.250
161.1328
167.3316
Other frequencies available upon request
Ordering Information
VC-700 - D F F - G F A - xxx.xxx
Product Family
VC: VCXO
Frequency (See Above)
77.6 - 180 MHz
Package
700: 5.0 x 7.5 x 2.8 mm
Linerarity, Stability
A: N/A
L: ± 10 linearity
M: ± 20 ppm stability
Enable - Disable
A: N/A
F: Pin 2
Input
C: 5.0Vdc ± 5%
D: 3.3 Vdc ± 5%
Output
F: Complementary
PECL
Operating Temperature
C: 0 to 70˚C
F: -40 to 85˚C
Absolute Pull Range *
F: ± 32 ppm
G: ± 50 ppm
* Consult factory for other possible APR levels.
Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • Web: www.vectron.com
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