VX-703 Data Sheet
Voltage Controlled Crystal Oscillator
Previous Vectron Model V-Type
VX-703
Description
Vectron’s VX-703 Voltage Controlled Crystal Oscillator (VCXO) is a quartz stabilized square wave generator with a CMOS output. The VX-703 uses
fundamental crystals resulting in low jitter performance and a monolithic IC which improves reliability and reduces cost.
Features
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CMOS output VCXO
Output Frequencies from 1.544 MHz to 77.760 MHz
5.0 or 3.3 V Operation
Fundamental Crystal Design with Low Jitter Performance
Output Disable Feature
Excellent ±20 ppm Temperature Stability,
0/70°C or -40/85°C Operating Temperature
Small Industry Standard Package, 5.0x7.0x1.8mm
Product is compliant to RoHS directive and fully
compatible with lead free assembly
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Applications
SONET/SDH/DWDM
Ethernet, SynchE
xDSL, PCMIA
Digital Video
Broadband Access
Base Stations, Picocells
Block Diagram
V
DD
E/D or NC
Output
Crystal
Oscillator
V
C
E/D or NC
Page1
Gnd
Rev: 5/19/2011
Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • http://www.vectron.com
Performance Specifications
Performance Specifications
Table 1. Electrical Performance
Parameter
Voltage
1
, 5V option
3.3V option
Current
2
, 5V option
3.3V option
Nominal Frequency
3
Pull Range
2,6
,
ordering option
Linearity
2
Gain Transfer
2
vs. operating temp.
ordering option
vs. initial accuracy @ Vc = 1.65V
vs. supply voltage
vs. load change
vs. aging / 1 Year
vs. aging / (following years)
Outputs
Output Logic Levels
2
Output Logic High
Output Logic Low
Load
Rise Time, Fall Time
2,4
Symmetry
2
Integrated Jitter
5,7
, 12kHz-20MHz
(61.44 MHz)
Phase Noise
7,9
(61.44 MHz)
10Hz
100Hz
1kHz
10kHz
100kHz
1MHz
10MHz
Enable/Disable
Output Enabled (EN = H)
Output Disabled
Control Voltage Range for Pull Range
Control Voltage Input Impedance
Control Voltage Leakage
Control Voltage Modulation BW
Operating Temp,
ordering option
1]
2]
3]
4]
5]
6]
7]
8]
9]
Symbol
V
DD
I
DD
Min
Supply
4.750
3.135
Typical
5.0
3.3
Maximum
5.250
3.465
55
40
Units
V
mA
Frequency
f
N
APR
Lin
K
V
Frequency Stabilities
5
±50
±50
±3
±1
±2
±1
ppm
ppm
ppm
ppm
ppm
ppm
V
0.9*V
DD
0.1*V
DD
I
OUT
t
R
, t
F
SYM
фJ
45
50
90
15
5
55
pF
ns
%
fs
1.544
±50, ±80, ±100
5
Positive, +65
10
77.760
MHz
ppm
%
ppm/V
-63
-97
-129
-144
-157
-159
-164
V
IH
V
IL
Control Voltage
V
C
Z
IN
BW
10
0/70 or -40/85
0.5
0.3
5
±1
4.5
3.0
0.7*V
DD
0.3*V
DD
dBc/Hz
V
V
V
MΩ
uA
kHz
°C
The power supply should have by-pass capacitors as close to the supply and to ground as possible, for examples 0.1 and 0.01uF.
Parameters are tested with production test circuit below (Fig 1).
See Standard Frequencies and Ordering Information tables for more specific information.
Measured from 20% to 80% of a full output swing (Fig 2).
Not tested in production unless otherwise stated in part description. Guaranteed by design and verified at qualification.
Tested with Vc = 0.3V to 3.0V unless otherwise stated in part description.
Measured using Agilent E5052.
The Output is Enabled if the Enable/Disable is left open.
Typical phase noise for the VX-7031package option which is recommended for best phase noise performance.
Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • http://www.vectron.com
Page2
Rev: 5/19/2011
Test Circuit
Waveform
I
DD
0.8*VDD
4
+
V
DD
-
.1μF
.01μF
I
C
V
C
1
+
-
3
2
15pF
50%
0.2*VDD
t
R
t
F
On Time
Period
Fig 1: Test Circuit
Fig 2: Waveform
Table 2. Absolute Maximum Ratings
Parameter
Power Supply
Voltage Control Range
Storage Temperature
Soldering Temp/Time
Symbol
V
DD
V
C
TS
T
LS
Ratings
0 to 6
0 to V
DD
-55 to 125
260 / 20
Unit
V
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. Permanent damage is also possible if OD or Vc is applied before Vcc.
Typical Phase Noise
Typical Gain
VX-703 @ 61.44 MHz
150
120
100
100
50
80
Vc (volts)
0
0
0.5
1
1.5
2
2.5
3
60
Gain (ppm/V)
Pull (ppm)
Pull
Gain
-50
40
-100
20
-150
0
Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • http://www.vectron.com
Page3
Rev: 5/19/2011
Reliability
VI qualification includes aging at various extreme temperatures, shock and vibration, temperature cycling, and IR reflow
simulation. The VX-703 family is capable of meeting the following qualification tests:
Table 3. Environmental Compliance
Parameter
Mechanical Shock
Mechanical Vibration
Solderability
Gross and Fine Leak
Resistance to Solvents
Moisture Sensitivity Level
Contact Pads
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 2015
MSL 1
Gold over Nickel
Handling Precautions
Although ESD protection circuitry has been designed into the VX-703 proper precautions should be taken when handling and
mounting. VI employs a human body model (HBM) and a charged device model (CDM) for ESD susceptibility testing and design
protection evaluation.
Table 4. ESD Ratings
Model
Human Body Model
Charged Device Model
Minimum
500V
500V
Conditions
MIL-STD-883, Method 3015
JESD22-C101
Table 5. Reflow Profile
Parameter
PreHeat Time
Ts-min
Ts-max
Ramp Up
Time Above 217 °C
Time To Peak Temperature
Time at 260 °C
Ramp Down
Symbol
t
S
Value
60 sec Min, 180 sec Max
150°C
200°C
3 °C/sec Max
60 sec Min, 150 sec Max
480 sec Max
20 sec Min, 40 sec Max
6 °C/sec Max
R
UP
t
L
T
25C to peak
t
P
R
DN
The device is qualified to meet the JEDEC
standard for Pb-Free assembly. The
temperatures and time intervals listed are
based on the Pb-Free small body requirements.
The VX-703 device is hermetically sealed so an
aqueous wash is not an issue.
Termination Plating:
Electroless Gold Plate over Nickel Plate
Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • http://www.vectron.com
Page4
Rev: 5/19/2011
Outline Drawing - Package “VX-7030”
VX7030 YWW
CCC-CCCC
Δ
XXMXXXX
Outline Drawing - Package “VX-7031”
VX7031 YWW
CCC-CCCC
XXMXXXX
YWW
= Date
Code
CCC-CCCC = Ordering Code
XXXMXXX = Frequency
Dimensions shown in mm.
Table 6. Pin Out
Pin
1
2
3
4
5
6
Pad Layout
Symbol
V
C
E/D
GND
Output
E/D
Function
VCXO Control Voltage
Enable Disable or NC
Case and Electrical Ground
Output
Enable Disable or NC
Power Supply Voltage
V
DD
Tape & Reel (EIA-481-2-A)
Table 7. Tape and Reel Information
Tape Dimensions (mm)
Dimension
Tolerance
VX-703
Reel Dimensions (mm)
Po
Typ
4
W
Typ
16
F
Typ
7.5
Do
Typ
1.55
P1
Typ
8
A
Typ
178
B
Min
1.78
C
Typ
13
D
Min
20.6
N
Min
55
W1
Typ
12.4
W2
Max
22.4
# Per
Reel
500
Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • http://www.vectron.com
Page5
Rev: 5/19/2011
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