Dual Frequency VCSO
High Frequency
VS-504
VS-504
Description
The VS-504 dual frequency VCSO (Voltage Controlled Saw Oscillator) from Vectron is a high frequency, ultra low phase noise
oscillator designed to support high speed data converters and 100G coherent optical receivers. The VS-504 provides 12fs rms
jitter in the 12kHz to 20MHz integration bandwidth and is available from 1GHz to 2.5GHz. Two frequencies are switchable.
Features
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•
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•
•
•
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Frequency Range 0.8 to 2.9 GHz
Dual Frequency
Ultra low jitter performance
Typical Jitter: 12fsec rms, 12kHz to 20MHz
3.3 supply voltage
Output sinewave + balanced sinewave
9x14 mm SMD package
See table on Page 5 for standard frequencies
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Applications
High Speed ADCs
40G / 100G / 200G Coherent Receivers
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%
with V
S
= 3.3V
Tuning Slope
Control Voltage Range
Frequency control input
impedance
Supply voltage
Current consumption
0
10
1.65
Positive
3.3
VDC
kΩ
Supply Voltage (Vs)
3.135
3.3
3.465
100
VDC
mA
@ Sinewave / Balanced Sinewave
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
Output Power
Signal
Load
Output Power
Phase difference between
output signal pairs
Subharmonics
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
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
-70
-98
-122
-145
-159
-163
10
-69
-97
-120
-142
-158
-159
11
45
0
45
7
50
8.5
50
3
Min
Typ
Max
Sinewave
55
12
55
6
±10
-25
Units
Ω
dBm
Ω
dBm
0
dBc
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
fs rms
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
fs rms
Notes
Balanced Sinewave
@ 1.75GHz
Balanced Sinewave
@ 1.98GHz
Balanced Sinewave
Additional Parameters
Weight
Processing and Packing
2.0g
Handling and Processing Note
Absolute Maximum Ratings
Parameter
Supply Voltage (V
S
)
Operable Temperature Range
Storage Temperature Range
-40
-40
Min
Max
6.0
+85
+95
Units
V
0C
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
Phase Noise
VS-504 @ 1.75GHz Balanced Sinewave
Phase Noise
VS-504 @ 1.98GHz Balanced Sinewave
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
G218K
Height “H”
4.8
Pin Length “L”
NA
Dimensions in mm
Pin Assignment (Sinewave)
1
2
3
4
5
6
Control Voltage (V
C
)
Frequency Select
GND
RF Out
GND
Supply Voltage Input (V
S
)
Pin Assignment (Balanced Sinewave)
1
2
3
4
5
6
Control Voltage (V
C
)
Frequency Select
GND
RF Out
RF Out compl. (180° phase shifted)
Supply Voltage Input (V
S
)
Marking
VS-504-xxxx
Frequency_1/Frequency_2
•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
G218K
Tape Width W (mm)
24
Quantity per meter
Quantity per reel
850
Dimension P
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 As-
sembly
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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