VS-720 Voltage Controlled SAW Oscillator
Vectron International • 267 Lowell Rd Hudson NH 03051 • Tel: 1-88-VECTRON-1• http://www.vectron.com
VS-720
Voltage Controlled SAW Oscillator
Features
• Industry Standard Package, 5.0 x 7.5 x 2.0 mm
• ASIC Technology For Ultra Low Jitter
0.100 ps-rms typical across 12 kHz to 20 MHz BW
0.120 ps-rms typical across 50 kHz to 80 MHz BW
• Output Frequencies from 150 MHz to 1 GHz
• 3.3 V Operation
• LV-PECL or LVDS Configuration with Fast Transition Times
• Up to ± 100 ppm APR
• Complementary Outputs
• Output Disable Feature
• Improved Temperature Stability over Standard VCSO
Product is free of lead and compliant to
EC RoHS Directive
Applications
PLL circuits for Clock Smoothing and Frequency Translation
Description Standard
• 1-2-4 Gigabit Fibre Channel INCITS 352-2002
• 10 Gigabit Fibre Channel INCITS 364-2003
• 10GbE LAN / WAN IEEE 802.3ae
• OC-192 ITU-T G.709
• SONET / SDH GR-253-CORE Issue3
Description
The VS-720 is a Voltage Controlled SAW Oscillator that
achieves low phase noise and very low jitter performance.
The VS-720 is housed in an industry standard 6-Pad leadless
ceramic package that is hermetically sealed. Packaging
options include bulk or tape and reel.
VS-720 Voltage Controlled SAW Oscillator
Vectron International • 267 Lowell Rd Hudson NH 03051 • Tel: 1-88-VECTRON-1• http://www.vectron.com
Electrical Performance
Parameter Symbol Minimum Typical Maximum Units Notes
Frequency
Nominal Frequency
Absolute Pull Range (Ordering Option)
Linearity
Gain Transfer (See Pg 5)
Temperature Stability
fN
APR
Lin
KV
fSTAB
150
±100
+90
±20
1000
±10
MHz
ppm
%
ppm/V
ppm
1,2,3
1,2,8
2,4,8,10
2,8
1
Supply
Voltage
Current (No Load)
VCC
ICC
2.97
3.3
55
3.63
70
V
mA
2,3
3
Outputs
Mid Level - LVPECL
Swing – LVPECL
Mid Level - LVDS
Swing – LVDS
Current
Rise Time
Fall Time
Symmetry
Jitter (12 kHz – 20 MHz BW) 622.08 MHz
Jitter (50 kHz – 80 MHz BW) 622.08 MHz
IOUT
tR
tF
SYM
φJ
φJ
Vcc-1.4
450
VCC-2.4
250
45
Vcc-1.25
600
Vcc-2.3
350
50
0.100
0.120
Vcc-1.0
750
VCC-2.5
450
20
500
500
55
0.250
0.300
V
mV-pp
V
mV-pp
mA
ps
ps
%
ps-rms
ps-rms
2,3
2,3
2,3
2,3
6
5,6
5,6
2,3
6,7
6,7
Period Jitter, RMS (622.08 MHz) φJ 3.0 4.0 ps-rms 9
Period Jitter, Peak - Peak (622.08 MHz) φJ 20 30 ps pk-pk 9
Sub-harmonic Suppression -55 dBc 2
Control Voltage
Control Voltage Range for APR
Control Voltage Input Impedance
Control Voltage Modulation BW
VC
ZIN
BW
0.3
75
50
3.0
V
KΩ
KHz
2,8
6
6
Operating Temp. (Ordering Option) TOP 0/70,-20/70 or -40/85 °C 1,3
Package Size 5.0 x 7.5 x 2.0 mm
1. See Standard Frequencies and Ordering Information tables (Pg 7) for more specific information
2. Parameters are tested with production test circuit below (Fig 1).
3. Parameters are tested at ambient temperature with test limits guard-banded for specified operating temperature.
4. Measured as the maximum deviation from the best straight-line fit, per MIL-0-55310.
5. Measured from 20% to 80% of a full output swing (Fig 2).
6. Not tested in production, guaranteed by design, verified at qualification.
7. Integrated across stated bandwidth per GR-253-CORE Issue3.
8. Tested with Vc = 0.3V to 3.0V unless otherwise stated in part description
9. Broadband Period Jitter measured using Lecroy Wavemaster 8600A 6 GHz Oscilloscope, 250K samples taken
10. ±100 ppm APR parts will have linearity of >10%
Figure 1. Test Circuit Figure 2. 10K LV-PECL Waveform
Vcc - 1.6V
Vcc - 1.3V
Vcc - 1.0V
80%
20%
t
R
t
F
t
A
t
B
SYM = 100 x t
A
/
t
B
1
2
3
6
5
4
50Ω50Ω
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) 50
Ω
Terminations are Within Test Equipment.
(-1.3V to +2.0V)
(-1.3V, +2.0V)
(-1.3V)
(+2.0V)
COutput
Output
Enable, Disable
VS-720 Voltage Controlled SAW Oscillator
Vectron International • 267 Lowell Rd Hudson NH 03051 • Tel: 1-88-VECTRON-1• http://www.vectron.com
Outline Diagram Suggested Pad Layout
Standard Pin Out
Pin Symbol Function
1 VC VCXO control voltage
2 OE1
Enable = LV-CMOS logic 0 or Ground,
Disable = LV-CMOS logic 1
**see Note1 below**
3 GND Case and Electrical Ground
4 Output Output
5 COutput Complementary Output
6 VCC Power Supply Voltage (3.3V ±10%)
Note 1: For proper operation disable pin can not be left floating. See page 7 for alternative input logic option
Tape and Reel (EIA-481-2-A)
Tape Dimensions (mm) Reel Dimensions (mm)
Dimension W F Do Po P1 A B C D N W1 W2 # Per
Tolerance Typ Typ Typ Typ Typ Typ Min Typ Min Min Typ Max Reel
VS-720 16 7.5 1.5 4 8 178 1.5 13 20.2 50 16.4 22.4 200
Po
W A
N
F
P1 W1
W2
C
B
D
ØDo
mm
[inch]
5.08
[0.200]
2.54
[0.100]
1.78
[0.070]
3.66
[0.144]
1.96
[0.077]
VS-720 Voltage Controlled SAW Oscillator
Vectron International • 267 Lowell Rd Hudson NH 03051 • Tel: 1-88-VECTRON-1• http://www.vectron.com
Absolute Maximum Ratings
Parameter Symbol Ratings Unit
Power Supply VCC 0 to 4 V
Output Current Iout 25 mA
Voltage Control Range VC 0 to VCC V
Storage Temperature TS -55 to 125 °C
Soldering Temp/Time TLS 260/40 °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
43
240Ω
0.01 µF
16
2
Gnd
OD 5
Vc
0.10 µF
+3.3V
240Ω
100Ω
Z = 50Ω
Z = 50Ω
COutput
Vcc
Output
Gnd
Vc
OD
Output
240Ω
34
240Ω
COutput
2
1
5
6Vcc
0.01 µF
0.10 µF
+3.3V
OD
-1.3V
COutput
Output
43
25
Vc
0.01 µF
16
Vcc
0.10 µF
+2.0V
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.
Functional Test: Allows standard power supply configuration.
Since AC coupled, the LV-PECL levels cannot be measured.
LV-PECL to LVDS: Restricted for short transmission lengths.
Configuration may require modification depending on LVDS receiver.
Gnd 3Output
4Z = 50Ω
+3.3V
COutput
OD
Vc
2
1
5
Vcc
6
0.01 µF
0.10 µF
Z = 50Ω
40Ω40Ω
150Ω150Ω
49Ω49Ω
+3.3V
Production Test: Allows direct DC coupling into 50Ω measurement
equipment. Must bias the power supplys as shown. Similar to Figure 1.
0.01 µF
0.01 µF
VS-720 Voltage Controlled SAW Oscillator
Vectron International • 267 Lowell Rd Hudson NH 03051 • Tel: 1-88-VECTRON-1• http://www.vectron.com
Typical Gain Transfer
VS-720-LFF-GAB-622M08
-200
-150
-100
-50
0
50
100
150
200
0 0.5 1 1.5 2 2.5 3
Pull (ppm)
Vc (volts)
Typical Phase Noise
VS-720-LFF-GAB- 622.0800 MHz
-160
-150
-140
-130
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
10 100 1000 10000 100000 1000000 10000000 100000000
Frequency Offset (Hz)
Phase Noise Level (dBc/Hz)
Ph as e N ois e a t Sp ecific F r eque ncy
Offsets
10Hz -46 dBc /Hz
100Hz -80 dBc/Hz
1000Hz -110 d B c/Hz
10kHz -130 d Bc /Hz
100kHz -134 d B c/Hz
1MHz - 138 dB c/Hz
10MHz -147 dBc/Hz
20MHz -147 dBc/Hz
40MHz -148 dBc/Hz
Jitter OC48 (12kHz to 20MHz)
0.08 ps-rms or 0.56 ps-pp
Jitter OC192 (50kHz to 80MHz)
0.11 ps-rms or 0.80 pp-rms
VS-720 Voltage Controlled SAW Oscillator
Vectron International • 267 Lowell Rd Hudson NH 03051 • Tel: 1-88-VECTRON-1• http://www.vectron.com
The device is 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 VS-720 device is hermetically
sealed so an aqueous wash is not an issue.
Termination Plating: Electroless Gold Plate over
Nickel Plate
25
217
200
150
260
Temperature (DegC)
Time (sec)
t S
t AMB-P
t L
t P
R UP
R DN
Reliability
VI qualification includes aging at various extreme temperatures, shock and vibration, temperature cycling, and
IR reflow simulation. The VS-720 family is capable of meeting the following qualification tests:
Environmental Compliance
Parameter Conditions
Mechanical Shock MIL-STD-883, Method 2002
Mechanical Vibration MIL-STD-883, Method 2007
Solderability MIL-STD-883, Method 2003
Gross and Fine Leak MIL-STD-883, Method 1014
Resistance to Solvents MIL-STD-883, Method 2015
Handling Precautions
Although ESD protection circuitry has been designed into the VS-720 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 Minimum Conditions
Human Body Model 1500 V MIL-STD 883, Method 3015
Charge Device Model 500 V JESD22-C101
Reflow Profile (IPC/JEDEC J-STD-020C)
Parameter Symbol Value
PreHeat Time t S 60 sec Min, 180 sec Max
Ramp Up R UP 3
oC/sec Max
Time Above 217 oC t L 60 sec Min, 150 sec Max
Time To Peak Temperature t AMB-P 480 sec Max
Time At 260 oC t P 20 sec Min, 40 sec Max
Ramp Down R DN 6
oC/sec Max
VS-720 Voltage Controlled SAW Oscillator
Vectron International • 267 Lowell Rd Hudson NH 03051 • Tel: 1-88-VECTRON-1• http://www.vectron.com
Standard Output Frequencies (MHz)
*155.5200 *156.2500 *160.0000 *162.0000 *175.0000 *187.5000 *200.0000 212.5000
240.0000 245.7600 250.0000 260.0000 268.8000 300.0000 311.0400 312.5000
320.0000 324.0000 350.0000 375.0000 384.0000 389.6000 400.0000 480.0000
491.5200 500.0000 531.2500 532.0000 533.0000 537.6000 622.0800 625.0000
635.0400 637.5000 640.0000 644.5313 657.4219 666.5143 669.3266 672.1627
690.5692 693.4830 704.3806 707.3527 720.0000 742.4347 768.000 796.8750
800.0000 901.1200 1000.000
Frequencies not shown are available upon request. *VC-710 is preferred VCXO for frequencies ≤ 200 MHz
Ordering Information
VS - 720 - L F F - G A A - xxx.xxx
*Not all combinations are possible **Linearity >10% for ±100 ppm APR option
For Additional Information, Please Contact:
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.
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
Product Family
S = VCSO
Package
720 = 5.0 x 7.5 x 2.0 mm
6 Pad Ceramic SMD
Input
L = 3.3 Vdc ± 10%
Output
F = LVPECL (45/55% Symmetry)
P = LVDS (45/55% Symmetry)
Operating Temperature
C = 0°C to 70°C
D = -20ºC to 70ºC
F = -40°C to 85°C
Frequency
150 - 1000 MHz
Performance Options*
A = Default Option
B = Lowest Phase Noise
C = ±5% maximum Linearity
D = + 20 ppm maximum
Temperature Stability
Enable/Disable Input Logic (LV-CMOS)
A = Pin 2: Enable Low (or Gnd)/Disable High
B = Pin 2: Enable High (or Vcc)/Disable L ow
Absolute Pull Range Options
C = ± 20 ppm minimum
F = ± 32 ppm minimum
G = ± 50 ppm minimum (default value)
N = ± 80 ppm minimum
H** = ± 100 ppm minimum