VS-700
Voltage Controlled SAW Oscillator
VS-700
Description
The VS-700 is a SAW based voltage controlled oscillator that operates at the fundamental frequency of the internal SAW filter.
The SAW filter 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 a hermetically sealed leadless surface mount package offered on tape and reel. It
has an output disable to facilitate on-board testing.
Features
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Industry Standard Package, 5.0 x 7.5 x 2.5 mm
Output Frequencies from 500 MHz to 850 MHz
3.3 V Operation
Low Jitter < 0.25 ps-rms across 50 kHz to 80 MHz
LV-PECL Configuration with Fast Transition Times
Complementary Outputs
Output Disable Feature
Product is free of lead and compliant to EC RoHS Directive
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Applications
PLL circuits for clock smoothing and frequency translation
Description
Standard
1-2-4 Gigabit Fibre Channel
10 Gigabit Fibre Channel
10GbE LAN / WAN
OC-192
SONET / SDH
WiMax
INCITS 352-2002
INCITS 364-2003
IEEE 802.3ae
ITU-T G.709
GR-253-CORE Issue4
IEEE 802.16
Block Diagram
Vcc
COutput
Output
SAW
Vc
Page1 of 7
OD
Gnd
Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • http://www.vectron.com
Performance Specifications
Electrical Performance
Parameter
Voltage
Current (No Load)
Symbol
V
CC
I
CC
Min
Supply
2.97
Typical
3.3
55
Maximum
3.63
70
Units
V
mA
Notes
2,3
3
Frequency
Nominal Frequency
Absolute Pull Range
Linearity
Gain Transfer (See pg 5)
Temperature Stability
f
N
APR
Lin
±50
500 - 850
MHz
ppm
1,2,3
1,2,3,8
2,4,8
2,8
1,6
±5
+390
±100
%
ppm/V
ppm
K
V
f
STAB
Outputs
V
CC
-1.5
500
Mid Level
Swing
Current
Rise Time
Fall Time
Symmetry
Spurious Suppression
Jitter (See pg 5)
Input Impedance
Modulation Bandwidth
Operating Temperature
Package Size
1]
2]
3]
4]
5]
6]
7]
8]
V
CC
-1.3
650
250
250
V
CC
-1.1
800
20
400
400
55
0.250
V
mV-pp
mA
ps
ps
%
dBc
ps-rms
2,3
2,3
6
5,6
5,6
2,3
6
6,7
6
6
1,3
I
OUT
t
R
t
F
SYM
фJ
45
50
50
60
0.120
Control Voltage
Z
C
BW
100
500
-40
5.0 x 7.5 x 2.5
+85
kΩ
kHz
°C
mm
T
OP
See Standard Frequencies and Ordering Information (Pg 7).
Parameters are tested with production test circuit below (Fig 1).
Parameters are tested at ambient temperature with test limits guardbanded for specified operating temperature.
Measured as the maximum deviation from the best straight-line fit, per MIL-0-55310.
Measured from 20% to 80% of a full output swing (Fig 2).
Not tested in production, guaranteed by design, verified at qualification.
Integrated across 50 kHz to 80 MHz, per GR-253-CORE Issue4.
Tested with Vc = 0.3V to 3.0V.
Fig 1: Test Circuit
t
R
Fig 2: 10K LV-PECL Waveform
t
F
SYM = 100 x t
A
/ t
R
t
A
t
R
Page2 of 7
Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • http://www.vectron.com
Absolute Maximum Ratings
Parameter
Power Supply
Input Current
Output Current
Voltage Control Range
Storage Temperature
Soldering Temperature / Duration
Symbol
V
CC
I
IN
I
OUT
V
C
T
STR
T
PEAK
/ t
P
Ratings
0 to 6
100
25
0 to V
CC
-55 to 125
260 / 40
Unit
V
mA
mA
V
°C
°C / sec
Stresses in excess of the absolute maximum ratings can permanently damage the device. Also, exposure to these absolute
maximum ratings for extended periods may adversely affect device reliability. Functional operation is not implied at these or any
other conditions in excess of those represented in the operational sections of this datasheet. Permanent damage is also possible if
any device input (Vc or OD) draws >100 mA.
Suggested Output Load Configuration
LV-PECL to LV-PECL:
For short transmission lengths, the power
consumption could be reduced by removing the 100Ω resistor and
doubling the value of the pull down resistors.
LV-PECL to LVDS:
Restricted for short transmission lengths.
Configuration may require modification depending on LVDS receiver.
Functional Test:
Allows standard power supply configuration.
Since AC coupled, the LV-PECL levels cannot be measured.
Production Test:
Allows direct DC coupling into 50Ω measurement
equipment. Must bias the power supplys as shown. Similiar to figure 1.
Page3 of 7
Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • http://www.vectron.com
Typical Characteristics
Page4 of 7
Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • http://www.vectron.com
Reliability
VI qualification includes aging at various extreme temperatures, shock and vibration, temperature cycling, and IR reflow
simulation. The VS-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 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 VS-700 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.
ESD Ratings
Model
Human Body Model
Charged Device Model
Minimum
1500V
1000V
Conditions
MIL-STD-883, Method 3015
JEDEC, JESD22-C101
Reflow Profile (IPC/JEDEC J-STD-020C)
Parameter
PreHeat Time
Ramp Up
Time Above 217 °C
Time To Peak Temperature
Time at 260 °C
Ramp Down
Symbol
t
S
R
UP
t
L
T
AMB-P
t
P
R
DN
Value
60 sec Min, 180 sec Max
3 °C/sec Max
60 sec Min, 150 sec Max
480 sec Max
20 sec Min, 40 sec Max
6 °C/sec Max
The device has been 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 temperatures refer to the topside of the package,
measured on the package body surface. The VS-700 device is
hermetically sealed so an aqueous wash is not an issue.
Page5 of 7
Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • http://www.vectron.com
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