VECTRON VS

VS-550
Dual Frequency VCSO
Features
• 9 x 14 x 3.5 mm Package
• 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
• Frequency Select Feature
Product is free of lead and compliant to
EC RoHS Directive
Applications
PLL circuits for Clock Smoothing and Frequency Translation
Description
Vcc
COutput
Standard
• 10G Fibre Channel
INCITS 364-2003
• 10GbE LAN / WAN
IEEE 802.3ae
• OC-192
ITU-T G.709
• SONET / SDH
GR-253-CORE Issue3
Output
Description
SAW 1
The VS-550 is a SAW based voltage controlled oscillator that
operates at the fundamental frequencies of the internal SAW
filters. These SAW filters are high-Q quartz devices that
enable the circuit to achieve low phase jitter performance over
a wide operating temperature range. The dual oscillator is
housed in a hermetically sealed J-lead surface mount package
offered on tape and reel. It has a frequency select function
that enables either “Frequency 1” or “Frequency 2.”
SAW 2
Vc
FS
Gnd
Vectron International, 267 Lowell Rd, Hudson NH 03051-4916
Page 1 of 7
Tel: 1-88-VECTRON-1
Website: www.vectron.com
Rev: 11Apr06
VS-550 Voltage Controlled SAW Oscillator
Electrical Performance
Parameter
Symbol
Frequency
Nominal Frequency
Absolute Pull Range
Linearity
Gain Transfer (See Pg 5)
Temperature Stability
Transition Time
±5
+385
±100
4
IOUT
tR
tF
SYM
Notes
MHz
ppm
%
ppm/V
ppm
µsec
1,2,3
1,2,3,8
2,4,8
2,8
1,6
6
3.3
55
3.63
70
V
mA
2,3
3
VCC-1.4
550
VCC-1.3
650
VCC-1.2
950
20
400
400
55
V
mV-pp
mA
ps
ps
%
dBc
ps-rms
2,3
2,3
6
5,6
5,6
2,3
6
6,7
kΩ
kHz
°C
mm
6
6
1,3
45
50
250
250
50
60
0.135
0.250
100
500
Zc
BW
TOP
Units
2.97
φJ
Control Voltage
Input Impedance
Modulation Bandwidth
Operating Temperature
Package Size
Maximum
±50
VCC
ICC
Outputs
Mid Level
Swing
Current
Rise Time
Fall Time
Symmetry
Spurious Suppression
Jitter (See Pg 5)
Typical
500 - 850
fN
APR
Lin
KV
fSTAB
Supply
Voltage
Current (No Load)
1.
2.
3.
4.
5.
6.
7.
8.
Minimum
-40
85
9.0 x 14.0 x 3.5
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 Issue3.
Tested with Vc = 0.3V to 3.0V.
Vc (-1.0V to +1.7V)
Vcc (+2V)
1
6
2
5
3
4
F1 (-0.58V), F2 (+0.59V)
Vee (-1.3V)
COutput
tR
tF
SYM = 100 x tA / tB
Vcc - 1.0V
Output
80%
Vcc - 1.3V
50Ω
50Ω
20%
Test Circuit Notes:
1) To Permit 50Ω Measurement of Outputs, all DC Inputs are Biased Down 1.3V.
2) All Voltage Sources Contain Bypass Capacitors to Minimize Supply Noise.
3) 50Ω Terminations are Within Test Equipment.
Figure 1. Test Circuit
Vcc - 1.6V
tA
tB
Figure 2. 10K LV-PECL Waveform
Vectron International, 267 Lowell Rd, Hudson NH 03051-4916
Page 2 of 7
Tel: 1-88-VECTRON-1
Website: www.vectron.com
Rev: 11Apr06
VS-550 Voltage Controlled SAW Oscillator
Outline Diagram
6
5
Pad Layout
4
VS-550-LFF-GNN
XXX.XXX-XXX.XXX
VI YWW
1
2
8.89±0.15
[0.350±0.006]
1.27
[0.050]
( 7.63
[0.300])
3
3.42+0.20
-0.30
0.135+0.008
-0.012
13.97±0.20
[0.550±0.008]
[
0.46±0.05
[0.018±0.002]
8.80
[0.346]
]
3.00
[0.118]
2.54
[0.100]
5.08
[0.200]
mm
[inch]
2.54±0.13
[0.100±0.005]
5.08±0.13
[0.200±0.005]
mm
[inch]
Pin Out
Control Logic (LV-CMOS)
Pin
Symbol
Function
FS
Operation
1
2
3
4
5
VC
FS
GND
Output
COutput
VCSO Control Voltage
Frequency Select (See Control Logic)
Case and Electrical Ground
VCSO Output
VCSO Complementary Output
0
1
F1
F2
6
VCC
Power Supply Voltage (3.3 V ±10%)
Tape and Reel (EIA-481-2-A)
Po
ØDo
W2
F
W
N
C
D
A
W1
P1
B
Tape Dimensions (mm)
Reel Dimensions (mm)
Dimension
W
F
Do
Po
P1
A
B
C
D
N
W1
W2
Tolerance
Typ
Typ
Typ
Typ
Typ
Typ
Min
Typ
Min
Min
Typ
Max
# Per
Reel
VS-550
24
11.5
1.5
4
12
330
1.5
13
20.2
100
24.4
30.4
200
Vectron International, 267 Lowell Rd, Hudson NH 03051-4916
Page 3 of 7
Tel: 1-88-VECTRON-1
Website: www.vectron.com
Rev: 11Apr06
VS-550 Voltage Controlled SAW Oscillator
Absolute Maximum Ratings
Parameter
Power Supply
Input Current
Output Current
Voltage Control Range
Storage Temperature
Symbol
VCC
IIN
IOUT
VC
TSTR
Ratings
0 to 6
100
25
0 to VCC
-55 to 125
Unit
V
mA
mA
V
Solder Temperature / Duration
TPEAK / tP
260 / 40
°C / sec
°C
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 FS) draws greater
than 100mA.
Suggested Output Load Configurations
+3.3V
Vc
FS
Gnd
+3.3V
0.10 µF
0.10 µF
0.01 µF
0.01 µF
1
6
2
5
3
4
Vcc
Vc
Z = 50Ω
COutput
Output
240Ω
FS
Z = 50Ω
100Ω
Gnd
1
6
2
5
3
4
+3.3V
Vcc
Gnd
1
Z = 50Ω
2
3
0.01 µF
5
4
Vc
0.01 µF
FS
Output
-1.3V
0.01 µF
240Ω
49Ω
+2.0V
0.01 µF
Vcc
49Ω
LV-PECL to LVDS: Restricted for short transmission lengths.
Configuration may require modification depending on LVDS receiver.
0.10 µF
COutput
40Ω
Output
0.10 µF
6
40Ω
COutput Z = 50Ω
+3.3V
FS
150Ω
240Ω
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.
Vc
150Ω
1
6
2
5
3
4
Vcc
COutput
Output
240Ω
Production Test: Allows direct DC coupling into 50Ω measurement
equipment. Must bias the power supplies as shown. Similar to Figure 1.
Functional Test: Allows standard power supply configuration.
Since AC coupled, the LV-PECL levels cannot be measured.
Vectron International, 267 Lowell Rd, Hudson NH 03051-4916
Page 4 of 7
Tel: 1-88-VECTRON-1
Website: www.vectron.com
Rev: 11Apr06
VS-550 Voltage Controlled SAW Oscillator
Typical Characteristics
800
At Ambient (22.5°C)
Typical Gain Transfer @ 622.0800 = +393 ppm/V
600
Typical Gain Transfer @ 644.5313 = +372 ppm/V
Frequency (PPM)
400
200
0
-200
622 Vc Pull
644 Vc Pull
-400
y = 393.01x - 555.91
y = 371.69x - 531.82
Linear (622 Vc Pull)
Linear (644 Vc Pull)
-600
-800
0.3
0.6
0.9
1.2
1.5
1.8
2.1
2.4
2.7
3
Control Voltage (V)
-95
-100
-105
Typical Calculated Jitter @ Vc = 1.65V
OC-192 Spec
SONET OC-48 (12kHz-20MHz) = 0.239 ps-rms; 1.67 ps-pp
F1 = 622.0800
SONET OC-192 (50kHz-80MHz) = 0.135 ps-rms; 0.95 ps-pp
F2 = 644.5313
-110
1/f
3
L(f) (dBc/Hz)
-115
-120
1/f
2
-125
-130
1/f
-135
1
OC-192 Spec Equivalent to
0.25 ps-rms @ 500 MHz
-140
-145
-150
-155
10
100
1,000
10,000
100,000
Offset (kHz)
Vectron International, 267 Lowell Rd, Hudson NH 03051-4916
Page 5 of 7
Tel: 1-88-VECTRON-1
Website: www.vectron.com
Rev: 11Apr06
VS-550 Voltage Controlled SAW Oscillator
Reliability
VI qualification includes aging at various extreme temperatures, shock and vibration, temperature cycling, and
IR reflow simulation. The VS-550 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-550 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
1500 V
1000 V
Conditions
MIL-STD 883, Method 3015
JEDEC, JESD22-C101
Reflow Profile (IPC/JEDEC J-STD-020C)
Time Above 217 oC
Time To Peak Temperature
Time At 260 oC
Ramp Down
Symbol
tS
R UP
tL
t AMB-P
tP
R DN
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-550 device is
hermetically sealed so an aqueous wash is not an
issue.
Value
60 sec Min, 180 sec Max
3 oC/sec Max
60 sec Min, 150 sec Max
480 sec Max
20 sec Min, 40 sec Max
6 oC/sec Max
tL
260
R UP
Temperature (DegC)
Parameter
PreHeat Time
Ramp Up
tP
217
200
R DN
150
tS
t AMB-P
25
Time (sec)
Vectron International, 267 Lowell Rd, Hudson NH 03051-4916
Page 6 of 7
Tel: 1-88-VECTRON-1
Website: www.vectron.com
Rev: 11Apr06
VS-550 Voltage Controlled SAW Oscillator
Standard Frequencies (MHz)
622.0800 P2
625.0000 P3
644.5313 P4
672.1627 R5
690.5692 R4
693.4830 R6
657.4219 PB
666.5143 P5
669.3266 R3
1. For other frequencies, we recommend the VS-751, please contact VI for details.
2. Frequency 1 must be lower than Frequency 2. Not all combinations are available.
Ordering Information
VS - 550 - L F F - H N N – P2 – P4
Product Family
Frequency 2
VS: VCSO
P3 – R6
Package
Frequency 1
550: 9 x 14 x 3.5 mm
P2 – R3
Input
Other (Future Use)
L: 3.3 V
N: N/A
Output
Other (Future Use)
F: LV-PECL
N: N/A
Operating Temperature
Absolute Pull Range
F: -40 to 85 °C
G: +/- 50 ppm
H: +/- 100 ppm
For Additional Information, Please Contact:
USA: Vectron International, 267 Lowell Rd, Hudson, NH 03051 . . . . Tel: 1-88-VECTRON-1
Fax: 1-888-FAX-VECTRON
EUROPE: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Tel: +49 (0) 3328-4784-17
Fax: +49 (0) 3328-4784-30
ASIA: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Tel: +86-21-28909740
Fax: +86-21-28909240
Vectron International reserves the right to make changes to the product(s) and or information contained herein without notice.
No liability is assumed as a result of their use or application. No rights under any patent accompany the sale of any such product(s) or information.
Vectron International, 267 Lowell Rd, Hudson NH 03051-4916
Page 7 of 7
Tel: 1-88-VECTRON-1
Website: www.vectron.com
Rev: 11Apr06