Voltage Controlled SAW Oscillator
Low G-Sensitivity
VS-508
VS-508
Description
The VS-508 VCSO (Voltage Controlled Saw Oscillator) from Vectron is a high frequency, ultra low phase noise and low g-sensitivity
oscillator designed to support harsh environmental applications. The VS-508 provides 12fs rms jitter in a 12kHz to 20MHz
integration bandwidth and is available from 0.8 to 2.9GHz.
Features
•
•
•
•
•
•
•
•
Frequency Range 0.8 to 2.9 GHz
Ultra low jitter performance
Typical Jitter: 12fsec rms, 12kHz to 20MHz
G-Sensitivity <0.6ppb/g
3.3 + 5V supply voltage
Output: Sinewave, balanced Sinewave, LVPECL
9x14 mm SMD package
See table on Page 5 for standard frequencies
•
•
•
Applications
Harsh Environment
Military
Test & Measurement
Performance Specifications
Pulling Characteristics
Parameter
Absolute Pull Range (APR)
Min
±20
Typ
Max
Units
ppm
Notes
Includes df vs:
•Operating temperature range +10 .. 85°C
•Aging 10 years
•Supply Voltage Change 5%
•Load change 10%
Positive
with V
S
= 5V
with V
S
= 3.3V
Tuning Slope
Control Voltage Range
Frequency control input
impedance
Modulation bandwidth
Supply voltage (standard)
Current consumption
Supply voltage (standard)
Current consumption
3.135
3.3
0.5
0
20
100
2.5
1.65
4.5
3.3
V DC
VDC
kΩ
kHz
@ -3dB
Supply Voltage (Vs)
4.75
5.00
5.25
65
3.465
100
V DC
mA
V DC
mA
Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • http://www.vectron.com
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Performance Specifications (Continued)
RF Output
Parameter
Signal
Load
Duty Cycle
Phase Noise: 100Hz offset
Phase Noise: 1kHz offset
Phase Noise: 10kHz offset
Phase Noise: 100kHz offset
Phase Noise: 1MHz offset
Phase Noise: 10MHz offset
Jitter: 12kHz to 20MHz offset
Signal
Load
Output Power
Phase Noise: 100Hz offset
Phase Noise: 1kHz offset
Phase Noise: 10kHz offset
Phase Noise: 100kHz offset
Phase Noise: 1MHz offset
Phase Noise: 10MHz offset
Jitter: 12kHz to 20MHz offset
45
0
45
45
-78
-102
-129
-148
-150
-150
29
Balanced Sinewave
50
3
-65
-95
-120
-141
-154
-165
10
55
6
Ω
dBm
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
fs rms
@ 2GHz
Sinewave
3.3V
50
Min
Typ
LVPECL
Max
55
55
Units
Ω
%
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
fs rms
Notes
@ 1GHz
LVPECL
3.3V
Additional Parameters
Parameter
Weight
Subharmonics
G-Sensitivity
Processing and Packing
0.6
Handling and Processing Note
Min
2.0g
Max
-30
-20
Units
dBc
dBc
ppb/g
< 2 GHz
> 2 GHz
Notes
Absolute Maximum Ratings
Parameter
Supply Voltage (V
S
)
Operable Temperature Range
-40
Min
Max
6.0
+85
Units
V
0C
Notes
Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • http://www.vectron.com
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Typical Performance
Performance Specifications (Continued)
Phase Noise
VS-508 @ 1GHz LVPECL
Phase Noise
VS-508 @ 2GHz Sinewave
G-Sensitivity
VS-508 @ 1GHz LVPECL
Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • http://www.vectron.com
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Outline Drawing / Enclosure
Package Codes
Code
G347
Height “H”
4.9
Pin Length “L”
N/A
Dimensions in mm
Pin Assignment Sinewave
1
2
3
4
5
6
7
8
9
10
GND
Control Voltage (V
C
)
N.C. (Not Connected)
GND
GND
GND
RF Out
N.C. (Not Connected)
Supply Voltage Input (V
S
)
GND
Pin Assignment LVPECL
1
2
3
4
5
6
7
8
9
10
GND
Control Voltage (V
C
)
N.C. (Not Connected)
GND
GND
GND
RF Out
RF-Out_complementary
Supply Voltage Input (V
S
)
GND
Pin Assignment Balanced Sinewave
1
2
3
4
5
6
7
8
9
10
GND
Control Voltage (V
C
)
N.C. (Not Connected)
GND
GND
GND
RF Out
RF-Out_Compl. 180° phase shifted
Supply Voltage Input (V
S
)
GND
Marking
VS-508-xxxx
Frequency
•AYYWW
Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • http://www.vectron.com
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Standard Shipping Method
Enclosure Type
G347
Tape Width W (mm)
24
Quantity per meter
Quantity per reel
850
Dimension P (mm)
12
Recommended Reflow Profile
Profile Feature
Average ramp-up rate (T
L
to T
P
)
Preheat - Temperature Min T
Smin
-Temperature Min T
Sma
-Time (min to max) t
S
T
Smax
to T
L
-Ramp-up Rate
Time maintained above
-Temperature (T
L
)
-Time (t
L
)
Peak Temperature (T
P
)
Pb-Free Assembly/Sn-Pb
Assembly
3°C/second max.
150°C
200°C
60-180 seconds
3°C/second max
217°C
60-150 seconds
max 260°C
Profile Feature
Time 25°C to Peak Temperature
Time maintained above
-Temperature (T
L
)
-Time (t
L
)
Time within 5°C of actual Peak-
Temperature (t
P
)
Ramp-down Rate
Pb-Free Assembly/Sn-Pb
Assembly
8 minutes max.
217°C
60-150 seconds
20-40 seconds
6°C/ second max
Note:
All temperatures refer to topside of the package, measured on the package body surface.
SMD oscillators must be on the top side of the PCB during the reflow process.
Vectron International • 267 Lowell Road, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • http://www.vectron.com
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