VS-700
Voltage Controlled SAW Oscillator
Features
•
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 < 0.20 ps-rms across 50 kHz to 80 MHz
•
LV-PECL Configuration with Fast Transition Times
•
Complementary Outputs
•
Output Disable Feature
•
Fully Compatible for Lead Free Assembly
Applications
PLL circuits for Clock Smoothing and Frequency Translation
Description
•
1-2-4 Gigabit Fibre Channel
•
10 Gigabit Fibre Channel
•
10GbE LAN / WAN
•
OC-192
•
SONET / SDH
Vcc
COutput
Output
Standard
INCITS 352-2002
INCITS 364-2003
IEEE 802.3ae
ITU-T G.709
GR-253-CORE Issue3
SAW
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.
Vc
OD
Gnd
Vectron International, 267 Lowell Rd, Hudson NH 03051-4916
Page 1 of 7
Tel: 1-88-VECTRON-1
Website: www.vectron.com
Rev: 17May04
VS-700 Voltage Controlled SAW Oscillator
Electrical Performance
Parameter
Frequency
Nominal Frequency
Absolute Pull Range
Linearity
Gain Transfer (See Pg 5)
Temperature Stability
Supply
Voltage
Current (No Load)
Outputs
Mid Level
Swing
Current
Rise Time
Fall Time
Symmetry
Spurious Suppression
Jitter (See Pg 5)
Control Voltage
Input Impedance
Modulation Bandwidth
Operating Temperature
Package Size
1.
2.
3.
4.
5.
6.
7.
8.
Symbol
f
N
APR
Lin
K
V
f
STAB
V
CC
I
CC
Minimum
Typical
500 - 850
Maximum
Units
MHz
ppm
%
ppm/V
ppm
Notes
1,2,3
1,2,3,8
2,4,8
2,8
1,6
2,3
3
2,3
2,3
6
5,6
5,6
2,3
6
6,7
6
6
1,3
±50
±5
+390
±100
3.3
55
V
CC
-1.3
650
250
250
50
60
0.120
100
500
3.63
70
V
CC
-1.1
800
20
400
400
55
2.97
V
mA
V
mV-pp
mA
ps
ps
%
dBc
ps-rms
kΩ
kHz
°C
mm
V
CC
-1.5
500
I
OUT
t
R
t
F
SYM
φJ
Z
c
BW
T
OP
-40
45
50
85
5.0 x 7.5 x 2.5
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.
(-1.3V to +2V)
Disable, Enable
(-1.3V, Open)
1
6
(+2V)
2
5
COutput
t
R
80%
t
F
SYM = 100 x t
A
/ t
B
Vcc - 1.0V
(-1.3V)
3
4
50
Ω
Output
Vcc - 1.3V
50
Ω
20%
Vcc - 1.6V
Test Circuit Notes:
1) To Permit 50
Ω
Measurement of Outputs, all DC Inputs are Biased Down 1.3V.
2) All Voltage Sources Contain Bypass Capacitors to Minimize Supply Noise.
3) 50
Ω
Terminations are Within Test Equipment.
t
A
t
B
Figure 1. Test Circuit
Vectron International, 267 Lowell Rd, Hudson NH 03051-4916
Page 2 of 7
Figure 2. 10K LV-PECL Waveform
Tel: 1-88-VECTRON-1
Website: www.vectron.com
Rev: 17May04
VS-700 Voltage Controlled SAW Oscillator
Outline Diagram
6
5
4
6.76
[0.266]
0.86
[0.034]
1.68
[0.066]
Suggested Pad Layout
VS700LG
XXX.XXX
VI YWW
1
2
7.49±0.15
[0.295±0.006]
1.91
[0.075]
3
5.08±0.15
[0.200±0.006]
2.49±0.18
[0.098±0.007]
1.27
[0.050]
1.70
[0.067]
3.83
5.54
[0.151] [0.218]
2.34
[0.092]
1.27
[0.050]
R0.64
[0.025]
2.54
[0.100]
5.08
[0.200]
mm
[inch]
2.54
[0.100]
5.08
[0.200]
mm
[inch]
Pin Out
Pin
1
2
Marking Key
Function
VCSO Control Voltage
Output Disable
Disabled = LV-CMOS Logic 0 (or Gnd)
Enabled = LV-CMOS Logic 1 (or Open)
Case and Electrical Ground
VCSO Output
VCSO Complementary Output
Power Supply Voltage (3.3 V
±10%)
Symbol
V
C
OD
Position 6
L = LFF
Position 7
G = GNN
H = HNN
3
4
5
6
GND
Output
COutput
V
CC
Tape and Reel (EIA-481-2-A)
Po
ØDo
W2
F
W
D
C
N
A
P1
W1
B
Tape Dimensions (mm)
Dimension
Tolerance
VS-700
Reel Dimensions (mm)
F
Typ
7.5
W
Typ
16
Do
Typ
1.5
Po
Typ
4
P1
Typ
8
A
Typ
178
B
Min
1.5
C
Typ
13
D
Min
20.2
N
Min
50
W1
Typ
16.4
W2
Max
22.4
# Per
Reel
200
Vectron International, 267 Lowell Rd, Hudson NH 03051-4916
Page 3 of 7
Tel: 1-88-VECTRON-1
Website: www.vectron.com
Rev: 17May04
VS-700 Voltage Controlled SAW Oscillator
Absolute Maximum Ratings
Parameter
Power Supply
Output Current
Voltage Control Range
Storage Temperature
Soldering Temp/Time
Symbol
V
CC
Iout
V
C
TS
T
LS
Ratings
0 to 6
25
0 to V
CC
-55 to 125
220/10
Unit
V
mA
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
datasheet. 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.
Suggested Output Load Configurations
+3.3V
0.10
µ
F
0.01
µ
F
0.10
µ
F
0.01
µ
F
150
Ω
150
Ω
+3.3V
+3.3V
Vc
1
OD
Gnd
3
4
2
6
5
Vcc
COutput
Output
Z = 50
Ω
Z = 50
Ω
100
Ω
Vc
1
OD
Gnd
3
4
2
6
5
Vcc
COutput
Output
Z = 50
Ω
Z = 50
Ω
40
Ω
40
Ω
49
Ω
49
Ω
240
Ω
240
Ω
LV-PECL to LV-PECL:
For short transmission lengths, the power
consumption could be reduced by removing the 100
Ω
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.
+3.3V
0.10
µ
F
0.01
µ
F
0.10
µ
F
0.01
µ
F
+2.0V
Vc
OD
Gnd
1
2
3
6
5
4
Vcc
COutput
Output
0.01
µ
F
0.01
µ
F
Vc
OD
-1.3V
1
2
3
6
5
4
Vcc
COutput
Output
240
Ω
240
Ω
Functional Test:
Allows standard power supply configuration.
Since AC coupled, the LV-PECL levels cannot be measured.
Production Test:
Allows direct DC coupling into 50
Ω
measurement
equipment. Must bias the power supplys as shown. Similar to Figure 1.
Vectron International, 267 Lowell Rd, Hudson NH 03051-4916
Page 4 of 7
Tel: 1-88-VECTRON-1
Website: www.vectron.com
Rev: 17May04
VS-700 Voltage Controlled SAW Oscillator
Typical Characteristics
800
At Ambient (22.5
o
C)
Typical Gain Transfer @ 622.0800 = +390 ppm/V
600
400
Frequency (PPM)
200
0
-200
-400
y = 389.92x - 538.34
-600
622 Vc Pull
Linear (622 Vc Pull)
-800
0.3
0.6
0.9
1.2
1.5
1.8
2.1
2.4
2.7
3
Control Voltage (V)
Typical Calculated Jitter
SONET OC-48 (12kHz-20MHz) = 0.166 ps-rms; 1.16 ps-pp
SONET OC-192 (50kHz-80MHz) = 0.118 ps-rms; 0.83 ps-pp
Vectron International, 267 Lowell Rd, Hudson NH 03051-4916
Page 5 of 7
Tel: 1-88-VECTRON-1
Website: www.vectron.com
Rev: 17May04
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